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Home | Technical SEO | Crawl Budget: The Ultimate 2025 Guide to How It Works and How to Optimize It

Crawl Budget: The Ultimate 2025 Guide to How It Works and How to Optimize It

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In this guide, you’ll learn what crawl budget is, how it works, and the best strategies to optimize it for faster indexing and improved SEO performance in 2025.

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Digital marketer analyzing crawl budget report on desktop with 87% warning indicator.
Confused about crawl budget? You’re not alone. Crawl budget is a common source of concern and confusion in SEO, especially for large or growing websites. In simple terms, your site‘s crawl budget is the number of pages search engine bots (like Googlebot) will crawl on your site within a given timeframe searchenginejournal.com. Search engines have finite time and resources, so they allocate each site a “budget” of how much crawling to do developers.google.com. In this guide, we’ll explain everything you need to know about crawl budget in 2025 – what it is, why it matters, how it works (crawl capacity vs. crawl demand), and proven best practices to optimize it. We’ll also highlight common mistakes to avoid. By the end, you’ll know how to make Google and other bots focus on your most important pages for faster indexing and better SEO results.

What Is Crawl Budget and How Does It Work?

Crawl budget refers to the time and resources a search engine is willing to spend crawling your site. Think of it as the number of URLs Googlebot (or another crawler) will fetch on your website per day (or another period) before moving on. Every site has a limit, especially given that the web is practically infinite and search engines cannot crawl every URL instantly. Not everything that gets crawled will be indexed, but if it’s not crawled, it definitely won’t be indexed.
 

Crawl Capacity Limit: Crawl Rate Limit

Table explaining crawl capacity, crawl demand, and crawl balancing in Googlebot crawl budget
This is about your server’s capacity and Googlebot’s caution. Google doesn’t want to overload your website. Crawl capacity limit is the maximum number of simultaneous connections or requests Googlebot can make to your site without hurting server performance. If your site responds quickly and reliably, Googlebot will increase the crawl rate, meaning it can fetch more pages in parallel. But if your server is slow or returns a lot of errors (HTTP 5xx or 429 “Too Many Requests”), Googlebot will slow down and crawl less.
 
In short, a fast, healthy server = a higher crawl capacity. Keep in mind Google also has overall resource limits on its side but for most sites the bottleneck is your site’s own performance.
 
Crawl Demand: This is about how much Google wants to crawl your site. Even if your site could technically handle more crawling, Googlebot won’t fetch pages that it deems unimportant or unchanged. Crawl demand depends on factors like the popularity of your pages, their freshness, and overall site quality. Pages that are more popular (e.g. linked to often or receiving traffic) tend to be crawled more frequently. Likewise, pages that update frequently or are time-sensitive have higher demand for recrawl.
 
Google essentially balances these two factors (capacity and demand) to decide your site’s crawl activity at any given time. If you have high demand and your site can handle it, Google may crawl many pages quickly. But if demand is low (e.g. small or static site) or capacity is low (slow server), the crawl rate will be lower.
 
It’s important to distinguish the URL from the slug. The slug is the portion of the URL that comes after the domain and any subfolders, identifying the specific page. For instance, in the URL https://yoast.com/keyword-research/, the slug is keyword-research yoast.com. Crafting an SEO-friendly slug (and by extension, an SEO-friendly URL) means focusing on the words that best describe the page content in a concise way.

All types of files count against your crawl budget

It’s not just your HTML pages – every URL requested by Googlebot uses a portion of the budget says, ahrefs.com. This includes CSS files, JavaScript files (including API calls), PDFs, images, alternate page versions (like AMP or mobile m-dot URLs), and so on. Googlebot and its various specialized crawlers (for mobile, images, video, etc.) share the overall budget for your domain. This means heavy page resources or lots of alternate versions can consume crawl capacity that could otherwise go to your main content pages.
 
Bottom line: Crawl budget is the intersection of what your site can handle and what Google wants to crawl. It’s largely an automatic process – sites that are important and update often will naturally get crawled more, up to the limit your server allows. However, as we’ll explore, you can influence crawl budget by removing things that lower demand (like useless pages) and improving things that increase capacity (like site speed). Before that, let’s see why crawl budget even matters and who needs to pay attention to it.

Why Crawl Budget Matters: Especially for Large Sites

For most small websites, crawl budget isn’t a pressing concern. If you have a few hundred or a few thousand pages, Googlebot can usually discover and crawl them without issue. In fact, if a small site’s pages aren’t getting indexed, it’s almost certainly due to content or technical SEO issues other than crawl budget. Google themselves say if your pages are crawled and indexed the same day they’re published, you don’t need to worry about crawl budget at all.
 
Crawl budget becomes crucial for large sites and very frequently updated sites. According to Google, this topic is most relevant for: sites with millions of pages, or sites with tens of thousands of pages that change daily, or any site where a large chunk of URLs are seen as “Discovered – currently not indexed” in Search Console. In other words, if you run an e-commerce site with endless product listings, a news site or forum with constant new content, or any massive web platform, optimizing crawl budget can help search engines keep up with your content changes.
 
Consider an example: an e-commerce marketplace like eBay has millions of pages.
 
A gaming review site like Gamespot might have tens of thousands of pages and new user reviews daily. These kinds of sites rely on efficient crawling so that new products or articles get indexed quickly, and outdated pages are revisited appropriately. If Googlebot only crawled, say, 10,000 pages a day on a site that has 2 million pages, it could take months to get through the whole site once – which is why such sites need to remove any crawl bottlenecks.

Why does crawl budget matter for SEO?

Because crawling is the first step to indexing and ranking. If search engines don’t crawl a page, they won’t index it, and it can’t rank at all. And if they crawl your important pages infrequently, any updates you make (new content, SEO improvements, changes in products/pricing) will be slow to reflect in search results accordong to, searchenginejournal.com.
 
By optimizing crawl budget, you ensure that crawlers focus on your critical pages and check them often, so new pages and changes get indexed faster. This is especially important for time-sensitive content (news, limited-time offers) and for large archives of content where you want Google to prioritize the best stuff.
 
There’s also an efficiency aspect: search engines like Google are increasingly conscious of resource constraints – both computational cost and even environmental impact (energy use) of crawling searchenginejournal.com. Google’s index already has hundreds of billions of pages and is growing daily searchenginejournal.com. To manage this, Google in recent years has reduced crawl rates for some sites and become more selective about indexing URLs searchenginejournal.com.
 
They don’t want to waste time fetching endless duplicates or trivial pages. This means that for large websites, inefficient crawling can directly translate to lost indexing opportunities. As we head into 2025, it’s more important than ever to make your site as crawl-efficient as possible so that every second Googlebot spends on your site counts toward something useful.
 
In short, crawl budget matters if your site is big or rapidly growing. It can be the difference between your new content showing up in Google today versus weeks from now. It can also impact how much of your site’s content gets indexed at all. Next, we’ll break down the two controlling factors – crawl capacity and crawl demand – in a bit more detail, and then dive into best practices to optimize your crawl budget.

Crawl Capacity vs. Crawl Demand: Two Sides of Crawl Budget

Pie chart comparison of crawl capacity vs. crawl behavior in Googlebot crawl budget optimization
Crawl capacity limit is essentially how many fetch requests per second (or in parallel) a crawler can make on your site without straining it developers.google.com. Search engines try to be polite: they don’t want their bots to crash your server or slow it to a crawl. Googlebot dynamically adjusts its crawl rate based on your site’s responsiveness:
 
If your site consistently responds quickly (fast page load, no server errors), Googlebot will gradually increase its crawl rate limit, allowing more simultaneous connections and more frequent fetches developers.google.com. It’s like saying “This site can handle it, let’s speed up.”
 
If your site starts responding slowly, or worse, returns a lot of errors (HTTP 5xx errors indicating server issues, or HTTP 429 meaning “too many requests”), Googlebot will dial back the crawling developers.google.comahrefs.com. It doesn’t want to make things worse by hammering an already struggling server.
 
Google also respects a crawl delay if you set one in your robots.txt (though that’s rarely used these days), and it tries to spread out fetches to avoid big spikes.
 
Remember, Google has many sites to crawl and not infinite resources itself developers.google.com. If your site is very slow, Googlebot might decide its time is better spent elsewhere and give you only a tiny fraction of crawling for a while.

What affects crawl capacity?

Server infrastructure and site performance are the big ones. A robust hosting environment (adequate CPU, memory, bandwidth), fast server software, and optimized front-end assets all help. If your pages are lightweight and load fast, Googlebot can fetch them quicker and move on to the next, effectively increasing pages crawled per second. On the other hand, if each page takes a long time to respond, Googlebot will naturally do fewer pages in the same timeframe.
 
Crawl capacity is also domain-specific: if you host large images or files on the same domain, those downloads count too. One interesting tip from Google is to host large resources (like images, PDFs) on a separate subdomain or CDN. By doing so, you shift the crawl load for those resources to a different host, freeing up capacity for your main site’s pages developers.google.com. (Googlebot treats different hostnames separately for crawl limits, so static.example.com or cdn.example.com would have its own capacity, preventing huge image files from eating into www.example.com’s budget developers.google.com.
 
Just be mindful that using multiple hostnames can introduce a slight performance hit for users on initial connections – but a good CDN setup can mitigate that.
 
In summary, improving your site’s speed and reliability increases your crawl capacity. Google’s own documentation puts it simply: “Make your pages efficient to load. If Google can load and render your pages faster, we might be able to read more content from your site.” developers.google.com

Crawl Demand: URL Priority & Update Frequency

Pie chart comparison of crawl capacity vs. crawl behavior in Googlebot crawl budget optimization

Crawl demand is how much the search engine wants to crawl your pages. Even if your site could handle thousands of hits per minute, the crawler won’t use that capacity if it deems it unnecessary. Several things drive crawl demand ahrefs.comdevelopers.google.com:

Popularity and Page Rank

Pages that are more popular on the internet (i.e., have more links pointing to them, or are frequently visited by users) get crawled more often ahrefs.com. This makes sense – Google wants to keep fresh content that people care about. If many sites link to a page of yours, Google’s algorithms assume it’s important, so it should be checked regularly. In contrast, a page with no inbound links or that no one ever visits is lower priority.

Change Frequency

Content that changes often will be crawled more often. If Googlebot notices that every time it visits a page there’s something new or updated, it will increase the crawl frequency for that page to keep the indexed version up to date ahrefs.com. For example, a news homepage might be crawled every few minutes, whereas a static “About us” page that never changes might be crawled only once every few months. Google also watches the overall site activity – if suddenly you add 1,000 new pages or make major updates site-wide, it can temporarily boost crawl rate to pick up the changes faster ahrefs.com.

Duplicate Content & Low-Value URLs

These can dampen crawl demand. As mentioned, Google finds a huge percentage of the web is duplicate, and it actively tries to avoid wasting time on redundant URLs ahrefs.com. If your site has many URLs that ultimately point to the same content (or near-duplicates), Googlebot may still crawl them initially, but once it figures out they’re not unique, it will deprioritize them.
 
Similarly, if you have a lot of low-value pages (e.g. thin content pages, or boilerplate pages like endless calendar dates or session IDs in URLs), Google might decide not to crawl them frequently or at all, in favor of more useful pages. This is why crawl budget optimization focuses heavily on eliminating unnecessary URLs – it directly increases the demand Googlebot has to crawl the stuff that remains. Without guidance, Googlebot will try to crawl all the URLs it knows on your site – if many of those are duplicates or junk, it wastes a lot of time that could have been used on your important pages developers.google.com.

Freshness vs. Staleness

Google’s systems aim to recrawl pages at an optimal rate to detect changes. If a page is updated every day, demand stays high; if not updated for weeks, crawl visits become less frequent over time ahrefs.com. This adaptive schedule means if you suddenly change an old page significantly, it might take Google longer to notice because it wasn’t crawling it often anymore. (You can always request indexing manually in such cases, but in general this is how it works.)
 
To put it together, Google’s crawl scheduler prioritizes what it thinks are the most important and time-sensitive URLs across the entire web, not just your site ahrefs.com. Your goal is to send the right signals so that your important URLs rank high on that priority list. High-quality content, lots of relevant links, and removing clutter all help increase crawl demand for your site. Meanwhile, maintaining a healthy server and fast response helps increase crawl capacity. When both demand and capacity are high, your site’s crawl budget (in practice, the pages crawled per day) will be high as well.
 
Next, let’s get into how you can influence these factors. The good news is that you can’t directly buy or ask for more crawl budget, but you can optimize your site so that whatever budget you have is used efficiently, and you can create conditions that naturally lead Googlebot to crawl more. Here are the best practices for optimizing crawl budget in 2025.

Best Practices for Optimizing Crawl Budget

If you manage a large or growing website, optimizing your crawl budget ensures search engines focus on your best content and don’t waste time on the rest. The following best practices will help improve your crawl efficiency and potentially increase the number of pages crawled:

Optimizing Your URL Structure and Site Architecture

A clean, logical URL structure makes it easier for crawlers to discover and prioritize your pages. Here’s how to optimize your URLs and linking structure:
 
Keep URLs simple and consistent: Use human-readable URLs with a clear hierarchy (e.g. example.com/category/product). Avoid superfluous URL parameters, session IDs, or random strings if possible. URLs with excessive query parameters or unclear structures tend to confuse crawlers and can lead to many unnecessary URL variations being crawled seodiscovery.com. For instance, example.com/products?page=1&sort=asc&color=red&color=blue can generate tons of combinations. If your site software creates URL parameters for filtering or tracking, look into ways to minimize or consolidate them.
 
Avoid duplicate URL versions: Ensure you have a preferred domain (choose either https://www.example.com or https://example.com) and redirect the other to it. Likewise, only one version of each page should be accessible – e.g., if https://example.com/page and https://example.com/page/ (with trailing slash) both work, pick one format and redirect the other. The same goes for http vs https (always redirect to https), and uppercase vs lowercase URLs. These little inconsistencies can multiply into many duplicate URLs that waste crawl budget ahrefs.com.
 
Limit deep crawling paths: Flatten your site architecture so that important content isn’t buried behind dozens of clicks or long URL paths. From the homepage or main sections, users (and crawlers) should ideally reach any important page within a few clicks. If a page is very deep (like example.com/a/b/c/d/e/page with many subdirectories), consider if that depth is necessary or if it can be restructured. A flat, well-organized site structure not only helps users, it also ensures crawlers don’t miss pages or give up partway.
 
Use internal linking wisely: Internal links are the pathways crawlers use to navigate. Make sure every valuable page is linked from at least one other indexed page (avoiding orphan pages that have no internal links pointing to them) – orphan pages can remain undiscovered or get crawled late, essentially wasting their content potential seodiscovery.com. Link prominently to high-priority pages (for example, link new articles from the homepage or category pages). 
 
This signals to crawlers that these are important. Conversely, you can reduce crawling of low-value pages by not linking to them from main areas or by using a nofollow link (though nofollow is not a guaranteed crawl blocker, it’s a hint).
 
Provide an HTML sitemap or index for large sites: For very large websites, you might consider an on-site HTML sitemap or an index page that links to key sections, to ensure crawlers have a direct path to discover all major parts of the site.
 
Real-world example: A large news site noticed Google wasn’t indexing some of their older articles. They realized the site’s pagination made some pages hard to reach. By restructuring archive links and adding a simple sitemap page by month, they made sure Googlebot could find every article, which improved overall indexation.

Configure canonicalization for common duplicates

Canonical tag configuration to resolve duplicate content for SEO optimization
There are many cases of unintentional duplicate content: homepage at / vs /index.html, pages accessible via multiple paths, HTTP vs HTTPS, www vs non-www, tracking parameters (like ?utm_source=) creating duplicates, etc. Most of these can be handled via a combination of redirects and canonical tags. For example, have your server redirect index.html to the root path, and use canonical tags to ignore tracking parameters. The goal is to eliminate duplicate URLs so Googlebot can focus on one URL per piece of content developers.google.com.
 
By consolidating duplicates, you free up crawl budget for unique pages. Google itself advises eliminating or consolidating duplicate content as one of the best ways to improve crawl efficiency developers.google.com. Remember, from Google’s perspective, crawling 10 URLs that all turn out to show the same content is a waste of time – they’d rather crawl 10 diverse pages. Help them do that by clearly indicating the preferred URLs.
 
One caution: don’t rely on just noindex for handling duplicates. If you mark many pages as noindex (via a meta tag), Google will still crawl them (to see the noindex directive) but then drop them from the index developers.google.com. That still wastes crawl budget. It’s better to use canonical tags or block truly unnecessary pages from being crawled at all (more on blocking in the next section). Use noindex for cases where you do need Google to see the page once (to obey the noindex), but after that it won’t keep it in the index.

Reduce Crawl Waste: Block or Remove Low-Value Pages

Crawl waste refers to crawler time spent on URLs that you don’t really want or need indexed – things like duplicate pages, filter parameters, session IDs, test pages, etc. Reducing this waste is one of the most effective crawl budget optimizations. Here’s how:
 
Use robots.txt to disallow truly non-important pages: The robots.txt file lets you tell crawlers not to crawl certain paths. When Googlebot sees a disallow rule, it generally won’t request those URLs at all, thereby saving crawl budget. This is useful for sections of your site that have no SEO value such as: internal search result pages (/search?q=), login/admin pages, shopping cart or user profile pages, faceted navigation URLs that just re-sort or filter products, infinite calendar pages, etc.
 
For example, if your e-commerce site generates URLs like /category?color=red&size=s&sort=price, you might disallow */?*sort= or specific parameter patterns. Blocking these “action” or filtered URLs ensures Googlebot spends time on your primary pages instead searchenginejournal.comsearchenginejournal.com.
 
Important: Do NOT disallow pages that you actually want indexed, and be careful not to block resources (like CSS/JS) that are essential for rendering. Also note, disallowed URLs might still appear in Google’s index if other pages link to them, but they will be without content (since Google can’t crawl them). The main win here is saving crawl time, not de-indexing.

Prefer robots.txt over noindex for crawl efficiency

If you have pages that are not useful for search engines at all, blocking via robots.txt is better than using noindex meta tags. With noindex, Google has to crawl the page to see the meta tag each time (wasting time) developers.google.com. With robots.txt disallow, Google generally won’t crawl it in the first place. One caveat: if a page is disallowed, Google won’t see any updates to it or know if it later becomes indexable. So use disallow only for content you’re confident you never need indexed.

Remove or noindex low-value content

Beyond technical duplicates, consider content that just isn’t valuable for search. For example, thin content or archive pages (tag pages with one post, empty search results pages, etc.). You have a few options: you can noindex them (so Google still crawls but eventually drops them from index), or password-protect/remove them entirely (a form of content pruning).

 

Another approach is to combine thin pages together or improve them so they’re no longer thin. The fewer “fluff” pages on your site, the more Googlebot can focus on the good stuff. Be careful not to throw away content that might have SEO value, though. Always evaluate if a page receives organic traffic or has backlinks before deciding it’s “low-value.”

Consider crawl budget when adding new features

Features like infinite scroll, user-generated content feeds, or faceted filters can inadvertently create crawl traps. For instance, an infinite scroll blog that keeps loading older posts can generate an endless series of paginated URLs if not implemented carefully, potentially trapping crawlers in a bottomless pit. If you implement infinite scroll, also provide paginated links (like page 1, 2, 3) so crawlers can navigate in chunks. For faceted navigation, limit which combinations generate indexable pages, and block those that don’t make sense.

 

A classic mistake is allowing every combination of filters to be a crawlable URL – that can explode your URL count and waste budget tremendously. Use nofollow on filter links or AJAX loading (so not every combo is a unique URL), and ensure only key filter combinations (like broad category filters) are crawlable.

Host large resources separately

Host large resources separately to improve crawl budget efficiency and page speed
As noted earlier, offloading images, videos, or other heavy resources to a separate domain (or CDN) can preserve your main site’s crawl budget developers.google.com. For example, instead of example.com/images/largephoto.jpg, serve it from img.examplecdn.com/largephoto.jpg. Google will then treat that as a separate host to crawl. This way, if Googlebot wants to periodically crawl your images, it won’t interfere with crawling your HTML pages. Many large sites do this as a standard practice for both performance and crawl reasons.
 
All of these steps help cut down on crawl waste. The effect is that the limited crawling time Google allocates to your site is spent on URLs that matter. If Googlebot sees that crawling your site yields mostly unique, valuable content (with few dead-ends or dupes), it might even increase your crawl rate over time, because it’s finding good content efficiently. On the other hand, if it keeps hitting junk or getting blocked, it may not try as hard to crawl more.

Improve Server Performance and Reliability

Speed and crawl budget are closely intertwined. A faster site not only improves user experience, but also allows crawlers to fetch more pages in less time. Improving your server performance can effectively raise your crawl capacity limit:

Optimize your page speed

Reduce page load times by compressing images, minifying CSS/JS, enabling browser caching, and using modern formats (like WebP for images). Fast-loading pages mean Googlebot can retrieve the HTML and all necessary resources quicker. Google’s crawler operates somewhat differently than a user browser, but slow server response is a direct bottleneck for crawl rate ahrefs.com. Check your server‘s TTFB (time to first byte) – a quick TTFB indicates your server is promptly handling requests.

Fix Duplicate Content and “Index Bloat”

Duplicate content was touched on under canonicalization, but it’s worth reiterating in terms of crawl budget optimization. Index bloat refers to having many pages indexed (or crawled) that don’t provide unique value – often due to duplicates or near-duplicates. This can siphon crawl attention away from your core content. To address this:
 
Identify common duplicate issues: Typical culprits include URL variations (http vs https, www vs non-www, trailing slash vs no slash, etc.), session IDs or tracking parameters creating separate URLs, printer-friendly or AMP versions of pages, and scraped or syndicated content that duplicates across domains. Use tools or Search Console’s Coverage report to find “Duplicate” or “Alternate page” entries. Also, do site: searches for your domain and see if the same titles/descriptions pop up multiple times.
 
Use appropriate consolidation methods: As noted, use canonical tags or redirects for on-site duplicates. For cross-domain duplicates (like your content copied elsewhere), there’s not much you can do for crawl budget except perhaps a canonical pointing to original (if you control both) or DMCA requests if it’s unauthorized copying. But internal duplicates you can and should fix.

Prevent infinite URL spaces

As discussed in crawl waste, things like calendar pages or very fine filter combos can generate millions of URLs. Implement limits (e.g., no linking beyond a certain page number in pagination, or restricting filter combinations to valid ones only). If an infinite space exists, Googlebot might spend a lot of time crawling it without finding new content, which is the definition of wasted budget.

Regularly audit your indexed pages

Check the Search Console Index Coverage report and look at what’s indexed. If you see pages that you don’t want indexed (soft 404s, parameter URLs, test pages, etc.), take action: add noindex tags to them (if you can’t remove them entirely), or better yet remove and 404 them if they serve no purpose. Over time, a leaner index means a more focused crawl. A site with 50,000 truly useful pages will outperform one with 50,000 useful + 100,000 junk pages in terms of crawl efficiency.

Leverage sitemaps for unique content

Leverage sitemaps for unique content to enhance SEO crawl efficiency
Ensure your XML sitemap (or multiple sitemaps for large sites) includes only the canonical, important URLs. This helps Google know what URLs you consider primary. If your sitemap is full of duplicate or parameter URLs, that defeats the purpose. Keep it clean – no broken or non-canonical URLs there. Update the sitemap when new content is added or removed. This is a way of saying “here’s where to focus your crawling.” Google reads sitemaps regularly developers.google.com, and while it doesn’t guarantee indexing, it aids discovery and prioritization.
 
By fixing duplicate content issues, you essentially shrink the haystack that Googlebot has to sift through to find the needle (your quality content). A famous stat from Google is that over half the URLs they crawl are duplicates of something they’ve seen before ahrefs.com. Don’t let your site contribute to that problem. The reward will be Googlebot spending its time on your unique pages and likely crawling more of them.

Implement Hreflang Correctly for Multilingual Sites

If you have multiple language or regional versions of pages, using the hreflang tags ensures Google understands they’re equivalents, not duplicates. This prevents, for example, the French version and English version of a page from competing or confusing the index.

 

It also helps Google serve the right version to the right users. Improper hreflang (or none at all when needed) can lead to duplicate content issues or Google crawling the wrong version for a region. Make sure each variant points to all other variants (including itself) in the hreflang annotations.

Use Search Console’s URL Inspection & Index Coverage

The URL Inspection tool lets you check a specific page’s status – when it was last crawled, what the crawler saw, and if it’s indexed. If an important page isn’t being crawled often, you can request indexing there as a stopgap.
 
The Index Coverage report will tell you how many URLs are in various states: Indexed, Submitted but not indexed, Discovered – currently not indexed, Crawled – currently not indexed, etc. Pay attention if you have a large number of “Discovered – not indexed” or “Crawled – not indexed” pages; that often indicates either crawl budget issues or quality issues. “Discovered – not indexed” means Google knows the URL (maybe from a sitemap or link) but hasn’t crawled it yet – that’s often a sign of not enough crawl budget or Google deeming it low priority.
 
“Crawled – not indexed” means it was fetched but not indexed, possibly due to quality or duplication. Both can signal places to improve.

Consider scheduling and load management

If you run certain processes that create a lot of new pages or changes, try to schedule them when crawl activity is naturally lower, or throttle how many new URLs you introduce at once. For instance, launching 100,000 new pages in one day might overwhelm your site and Googlebot might not crawl them all quickly; a staged rollout could be more manageable.
 
Also, you can control Googlebot’s crawl rate in Search Console settings (there’s a setting for slowing it down, if Google is hitting your site too hard during a migration or something), but generally you should let Google manage it automatically. Only use the manual rate limit in special cases, as it’s an outdated approach and Google will revert it after some time.
 
All these best practices aim at one thing: Make your site easy to crawl, and make each crawl count. Now that we’ve covered what to do, let’s highlight a few things not to do – common mistakes webmasters make regarding crawl budget.

Common Crawl Budget Mistakes to Avoid

Even experienced SEOs can slip up and unintentionally waste crawl budget or harm a site’s crawlability. Here are some common crawl budget mistakes you should avoid:
 
Ignoring Crawl Budget on a Huge Site: If you run a large site (tens of thousands to millions of pages) and notice indexing issues, don’t brush off crawl budget as a “vanity metric.”
 
While content quality and relevance are critical, crawl budget can be a real bottleneck for large sites. A mistake would be to keep adding content without addressing fundamental crawl inefficiencies (like tons of duplicate pages or slow server responses). Large e-commerce sites, for example, need to actively manage crawl budget or risk large portions of their catalog being invisible to Google. In contrast, if you have a small site, obsessing over crawl budget is usually a misdirection – focus on content and basic SEO first searchenginejournal.com.

Accidentally Blocking Important Pages

Common mistakes in robots.txt and meta tags that block important pages from indexing

Mistakes in your robots.txt or meta tags can be catastrophic. A common error is mis-configuring robots.txt with a Disallow that inadvertently blocks your whole site or key sections (for instance, Disallow: / would stop all crawling!). Always double-check your robots file after changes. Similarly, putting a <meta name=”robots” content=”noindex“> on a template by accident can deindex thousands of pages.

 

Use the Search Console Robots Testing Tool to test your robots.txt directives, and the URL Inspection tool to verify that important pages are crawlable and not blocked. In short, be very cautious when using crawl controls – a single character typo can waste your entire crawl budget on checking disallowed URLs or prevent crawling altogether.

Slow Site and Overlooking Impact

Site speed issues can sometimes fly under the radar. Perhaps your site is moderately fast for users on the front-end, but your server has a slow time-to-first-byte under load. If you ignore performance optimization, you might be throttling your own crawl capacity.
 
A mistake is to focus solely on front-end metrics (like how pretty the site is) and not on server efficiency. Conduct load testing or monitor server logs when Googlebot comes around – if the server CPU goes to 100% during Google’s crawl, that’s a sign you need to optimize queries or upgrade resources. In 2025, Core Web Vitals and user experience are big, but don’t forget that server speed for crawlers is just as important behind the scenes.
 
By avoiding these mistakes, you can ensure your crawl budget optimization efforts aren’t undone by an oversight. It’s all about being deliberate and vigilant: know what pages you’re offering to crawlers, keep your site error-free, and pay attention to Google’s feedback.

Final Thoughts

Crawl budget may sound like an esoteric technical topic, but it boils down to a simple principle: Make it easy for search engines to find and index your best content. For most small to medium sites, following core SEO best practices (solid site structure, no major errors, quality content) is enough to ensure crawl budget isn’t a problem. For large sites, though, it pays to be proactive and systematic in optimizing crawl efficiency.

To recap the key points

Crawl budget = crawl capacity (what your site can handle) + crawl demand (what search engines want). Improve capacity by speeding up your site and being stable; improve demand by publishing quality content, earning links, and pruning junk pages developers.google.comdevelopers.google.com.
 
Focus on what matters: Ensure important pages are accessible (internally linked, in sitemaps) and low-value pages are minimized or blocked. Use canonicalization and robots directives to guide crawlers to the right content developers.google.comdevelopers.google.com.
 
 
Reduce waste: Every unnecessary URL Googlebot crawls is one less useful URL it could have crawled. Eliminate duplicate content and crawling traps that squander your crawl budget ahrefs.comseodiscovery.com.
 
Monitor and adjust: Use tools like Google Search Console and log analyzers to keep an eye on crawling. If you see problems (like important pages not crawled, or too many errors), take action quickly developers.google.comseodiscovery.com.
 
Stay up-to-date: As we head into 2025, crawling and indexing are evolving (e.g., AI-driven crawlers, IndexNow for instant indexing on some engines tbs-marketing.com). The fundamentals remain the same, but keep an ear out for new best practices from sources like Google Search Central. For instance, Google recently suggested hosting static resources on separate hostnames to improve crawl efficiency developers.google.com – advice that wasn’t widely discussed a few years ago.
 
By following this guide and the best practices outlined, you’ll optimize your site’s crawl budget so that Googlebot spends its time wisely on your site. The reward is more of your pages indexed faster and more reliably, which is the foundation for better SEO performance. A site that’s easy to crawl is often easy to index and rank.
 
Empower the bots to crawl smarter, and you’ll reap the benefits in search visibility. Happy optimizing!

Sources

Google Search Central – Large site owner’s guide to managing crawl budget developers.google.comdevelopers.google.comdevelopers.google.com
 
Search Engine Journal – 9 Tips to Optimize Crawl Budget searchenginejournal.comsearchenginejournal.com
 
Ahrefs – When Should You Worry About Crawl Budget? ahrefs.comahrefs.com
 
Search Engine Land – Crawl budget: What you need to know in 2025 (Helen Pollitt, Dec 2024) searchenginejournal.comdevelopers.google.com
 
SEO Discovery Blog – Crawl Budget Optimization seodiscovery.comseodiscovery.com
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