Canonical tag errors: how to find and fix them
Canonicals pointing to redirects, errors or noindex pages, multiple canonicals and missing ones. How to audit rel=canonical across a site and fix what's broken.
How to check Core Web Vitals for every page on your site
PageSpeed Insights tests one URL at a time. How to audit LCP, INP and CLS across a whole site with real-user CrUX data, and what to fix first.
How to find duplicate and near-duplicate content on your site
Exact and near-duplicate pages, duplicate titles and descriptions. How to find them across a site and when to redirect, canonicalise or rewrite.
Hreflang errors: the 5 most common mistakes and how to fix them
Invalid codes, missing return links, non-indexable alternates, no self-reference, no x-default. How to find and fix the hreflang errors that break SEO.
Log file analysis for SEO: see what Googlebot really crawls
Server logs show every request Googlebot actually makes. How to verify real Googlebot, find crawl errors and wasted crawls, and spot pages Google never visits.
Orphan pages: how to find them and what to do with them
Orphan pages have no internal links pointing to them, so users and crawlers struggle to find them. How to find them with sitemaps, Search Console and logs.
Redirect chains: how to find and fix them
What redirect chains and loops are, why they slow crawling and users down, and how to find and fix every one on your site in a single pass.
How to use Claude for a technical SEO audit (with MCP)
Connect Crawlens to Claude over MCP and turn a long issue list into a prioritised, developer-ready plan built on your own crawl data.
JavaScript SEO: raw vs rendered HTML, and what to fix
Titles, canonicals, links or content that only appear after JavaScript runs are invisible to many crawlers. How to compare raw and rendered HTML.
Striking distance keywords: how to find your page-two wins
Page-two rankings get almost no clicks but are often the cheapest wins. How to find them with Search Console and a crawl, and what to fix first.
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