The cost of retrieval: what a page really costs Googlebot
I started digging into crawl budget around 2016, and in 2018 I gave my first talk built on crawl data...
Read ArticleServe every page in under 15ms to bots and users with a built-in two-tier cache that runs independently from your application, recaches automatically, and never drops a response even when your origin is under pressure.
Without a dedicated cache service, every request affects your origin server. Slow responses may cost you crawl frequency, rankings, and conversions before you have a chance to react.
Search engines distribute a crawl budget based on how fast servers respond. Without cache, pages can take much longer to load, so Googlebot inspects fewer URLs per visit.
When a cache entry expires during a traffic spike or a rendering job fails, the request falls through to an overloaded origin, often returning a 5xx error to the bot or user that triggered it.
Every bot request, traffic spike, and re-crawl hits servers directly. Without a cache absorbing repeated requests, infrastructure costs increase and response times degrade under load.
Without per-page or per-pattern TTL rules, you have to choose between serving outdated content too long or invalidating the entire cache. Neither is acceptable for large sites.
A built-in multi-layer cloud cache service with 15ms response, per-URL TTL control, automatic
recaching, and a stale fallback ensuring bots and users always receive a response.
EdgeComet does not wait for a bot to explore an empty cache. Pages are retrieved, rendered and cached in advance from your sitemap, Search Console reports, and crawl patterns.
Freshness is determined per page. Frequently updated pages and content earning clicks in Google and AI answers refresh every day or more quickly.
You can open the cache and read it. Every cached page, the exact HTML each bot got, when it was stored, what changed since the previous version, and hit and miss rates over time.
Along with the web cache service for websites, EdgeComet offers a lot of useful features, including SEO alerts, rendering, log analyzer, edge SEO, and more.
None of the minor SEO issues should require developers and a long wait. EdgeComet lets your SEO team make changes instantly.
Deploy changes across thousands of pages.
Preview changes before search engines see them.
Generate complex SEO rules in seconds.
Every change is versioned and reversible
Rendering JavaScript pages on every request is slow and expensive. EdgeComet's caching system ensures bots receive pre-rendered pages instantly.
Manage and monitor cached renders
Pre-render critical pages before bots arrive
JavaScript rendering failures can silently break SEO and AI visibility. EdgeComet continuously monitors rendering performance.
Monitor rendering activity and performance
Detect JS errors during bot rendering
Analyze render time and page size
Track render failures, timeouts, and origin errors
Traditional crawlers capture your site at one moment. Evergreen Crawl continuously refreshes SEO data whenever real search or AI bots visit your pages, without extra crawls or added server load.
Find pages that may not get indexed
Spot missing, duplicate, or weak content
Find missing or incorrect schema markup
Detect internal linking and nofollow issues
SEO issues happen often. EdgeComet monitors every real bot request and notifies if something seems wrong.
Alerts are triggered by actual bot traffic
AI explains what happened and why
Ready-to-use alert rules, active in one click
Get alerts where your team actually works
SEO data is only useful if you know what to do with it. EdgeComet's AI watches your website and tells you exactly what to fix and how.
AI surfaces problems
Get specific fixes, not vague observations
AI builds rules for you
See how EdgeComet differs from traditional SEO tools and analytics platforms – across real bot data, AI visibility, and crawl intelligence. Here's an SEO log analyzer tools comparison.
EdgeComet keeps copies of your content so search engine bots always receive a fast response. Control how fresh your pages are, without involving developers to make changes.
You get pages fast, but bots still hit slow servers and errors.
EdgeComet shows which pages bots got from cache and which are missed.
They don't allow you to create different rules for different pages.
EdgeComet allows users to set cache duration per URL.
When the server is under load, bots get errors.
With EdgeComet, even when your pages are outdated, bots never see errors.
Run EdgeComet on your real traffic with full access to the platform, including rendering, monitoring, and Edge SEO.
A website caching service keeps copies of rendered pages and serves them to subsequent requests, eliminating the need to re-render the same content for every visit. Here's how EdgeComet's cache works in practice:
Subsequent requests for the same URL are served directly from memory in under 15ms, without touching your origin server.
Expired entries are refreshed automatically, proactively, or on demand, keeping high-priority content fresh, with stale fallback if recaching fails.
Hit rates, miss rates, and per-URL freshness are monitored in real time for full visibility into cache performance.
Websites with extensive catalogs, regular changes, and high crawler interest are the ones where a web cache service for website performance pays for itself the quickest
Category pages, filtering, and internal search cost the most to build and bots request them the most. EdgeComet gets that bot traffic first, so a flash sale never competes with a crawl surge for the same database.
Classifieds have countless listings that don't last long, yet bots keep returning to check them. EdgeComet refreshes active listings often and archived ones rarely, without affecting your servers.
Availability and pricing move daily while neighborhood guides and agency profiles don’t change for months. Freshness follows each page's own change rate instead of one site-wide TTL.
Googlebot, news crawlers and every AI training bot arrive at once on a story that just broke. The cache takes that traffic while your CMS gets on with publishing the next one.
Improve indexing, visibility, and traffic from day one.
14-days free trial
A cloud caching solution for websites keeps rendered web content and serves it to subsequent requests without touching the origin server. Instead of re-rendering a page on every visit, the cache delivers a pre-built response.
Any site where content is requested often by multiple bots or users can benefit from a cache layer. It's important when rendering is slow or when the crawl budget is being wasted on slow responses.
EdgeComet's TTL rules allow dynamic pages to be cached for a few minutes, which is enough to absorb repeated bot visits while keeping content fresh. For pages that must never be cached, URL exclusions can be configured.
You can improve site speed with web cache service provided by EdgeComet. The solution gives responses in under 15ms compared to 1–3 seconds for uncached server responses and 100–500ms for basic CDNs. For bots, faster response times increase crawl frequency. For users, lower time-to-first-byte enhances Core Web Vitals.
EdgeComet works as a separate tool outside your site. No changes required to application code, server configuration, or CDN cache service setup. Deployment takes days, and shadow mode lets you verify cache behavior on live traffic.
EdgeComet can be deployed in shadow mode, so you can validate hit rates, TTL behavior, and coverage before switching traffic over. From there, full activation is a configuration change, not a code deployment.
Stay ahead with expert insights on search visibility, AI optimization, and technical SEO
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