CrawlSense Blog

Technical SEO, on-page optimization, ecommerce, agency operations.

Browse by category

Laptop screen shows a map and related information.
Featured · GEO & AI Search

Managing LLM Crawlers: GPTBot, ClaudeBot, Google-Extended

Eight LLM crawlers now hit your site. Some train, some retrieve, some do both. Blocking the wrong one costs you AI-channel visibility for nothing. Here's the matrix and the robots.txt that maps to it.

11 min read

Ecommerce SEO

View all →
Red 'buy now!' button on a computer keyboard.

Out-of-Stock Product Pages: 4 Strategies Compared

Most ecommerce sites handle out-of-stock products inconsistently, destroying seasonal rankings. The four viable strategies (keep with notice, 301 to category, 410 Gone, 404) each fit specific scenarios. Here's the decision tree and the reindexation implications.

· 7 min read
a white and black sign

Category Filters: UX vs SEO Trade-offs

Category filters are the UX feature with the most SEO footprint. Every filter selection is a potential URL. Most shouldn't be indexed, but the ones with real search intent should. The trade-off between UX flexibility and SEO cleanliness is worth deliberate design.

· 7 min read
Workflow diagram, product brief, and user goals are shown.

Product Schema: Variants, Availability, Ratings

Product schema is non-negotiable for ecommerce. Stars, prices, and availability in the SERP lift CTR 15-30%. But implementation mistakes — schema claiming features the page doesn't show, variant handling, availability lag — trigger manual penalties. Here's the implementation that works.

· 7 min read

GEO & AI Search

Generative Engine Optimization, AI search, LLM crawlers, citation strategy.

View all →

On-Page SEO

View all →
Screenshot of the medium website search results page

Featured Snippet Optimization: Formatting for Zero-Click Wins

Featured snippets occupy prime SERP real estate — position zero, above organic results. Winning them requires structural formatting that Google's snippet extractor can reliably parse. Here's which formats work, how to structure content, and the queries worth targeting.

· 8 min read

SEO Analytics

Measurement, reporting, attribution: GSC, GA4, KPI trees, SEO ROI.

View all →

SEO for Agencies

View all →
a person writing on a piece of paper

Migrating from Manual to Automated SEO Monitoring

Weekly manual SEO checks catch problems 3-7 days after they happen. Automated monitoring catches them in minutes. The migration from manual to automated isn't about replacing judgment — it's about catching regressions before they compound.

· 7 min read

Technical SEO

View all →
a computer screen with a rocket on top of it

The Complete Guide to Technical SEO Audits

Most technical SEO audits fail the same way: they generate 80-page PDFs with 200 findings, and clients execute none of them. The audits that move rankings solve for one thing: which of five layers is broken, and which single fix restores the most value.

· 11 min read
a computer screen with a rocket on top of it

Core Web Vitals in 2026: What Still Matters

Core Web Vitals is a real but modest ranking signal — and the metrics keep shifting. INP replaced FID in March 2024. Here's what the current three metrics actually measure, what they don't, and where optimization actually moves the needle.

· 9 min read

SEO Glossary

200+ definitional entries cross-linked across the blog. Technical SEO, GEO/AI search, links, Core Web Vitals, ecommerce, local — short, precise, no fluff.

Browse the glossary →