Soft 404s: how a successful HTTP response can erase a page from search
Distinguish true 404s, soft 404s, valid empty states, redirects, and transient failures, then enforce correct HTTP semantics across server-rendered and single-page applications.
Practical playbooks
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Guides in this collection
JavaScript SEO in 2026: rendering queues, hydration, byte limits, and content parity
Decide what must be server-rendered, test source and rendered parity, and diagnose failures caused by the 2 MB fetch boundary, hydration, state, resources, and status handling.
Internal links as a ranking system: from PageRank theory to a testable site architecture
Find structurally important but weakly connected pages, choose links that improve navigation and discovery, and test the change without inventing link-juice precision.
Server logs vs Search Console: which evidence answers which crawling question?
Choose the right evidence for HTTP requests, rendering, indexed URL state, and search performance, then join the sources without forcing unlike totals to match.
The canonical paradox: why Google can ignore your canonical and how to diagnose the conflict
Reconstruct the duplicate cluster, expose conflicting redirects, canonicals, sitemaps, links, and content, then choose the URL control that fits the resource.
Crawl budget is not a score: what Googlebot demand, capacity, and server health actually mean
Determine whether crawl budget is a real constraint, separate demand from capacity, and choose the intervention that can change the measured bottleneck.
Source vs Rendered vs Googlebot SEO: find JavaScript SEO gaps in Chrome
See when JavaScript or user-agent handling changes titles, canonicals, robots directives, headings, schema, links, or visible content.
Technical SEO crawler settings that actually matter
A no-fluff guide to user agent, JS rendering, robots rules, headers, and crawl strategy choices.
Crawl report analysis: filters and operators for faster SEO decisions
Turn raw crawl data into action using query operators, segment filters, and practical triage logic.
Mobile vs desktop crawl comparison for SEO: find rendering gaps before Google does
Find parity issues between classic and JS-rendered versions, and between device profiles.
Outgoing links and top words: two fast audits for SEO hygiene
Use crawl-derived outbound links and top word reports to spot quality and relevance issues quickly.
Sitemap monitoring with daily URL trends by sitemap
Track sitemap history and daily page count changes both site-wide and per individual sitemap file.
Free online SEO crawler: evaluate your site before you buy
Run a free crawl, understand your baseline issues, then scale into full monitoring when needed.
2-UAcomBot: how we identify ourselves and respect robots.txt
Every page snapshot 2-UA takes with 2-UAcomBot is gated by the target host's robots.txt. Here is exactly how our bot behaves and how to control it.
How to find broken links (4xx and 5xx) on your website without crashing production
Crawl your site, filter 4xx/5xx, export to XLSX, and set up auto-alerts so broken links never reach users again.
How to detect redirect chains and redirect loops that eat your crawl budget
Find every redirect chain longer than one hop, fix loops, and recover crawl budget Googlebot is wasting on 302/301 ping-pong.
How to find orphan pages on your website (pages with zero internal links)
Combine a full crawl with your sitemap and GSC export to surface every page Google knows about but your site does not link to.