Search Engine Land's investigation found that WP Engine's managed WordPress hosting blocks or rate-limits certain AI crawlers, including GPTBot, ClaudeBot, and PerplexityBot, at the platform level, pr…
Indexflow-SEO, a lightweight SEO analyzer written in Rust, has been released as version 0.1.2 on crates.io, offering zero-dependency technical SEO validation and Generative Engine Optimization (GEO) a…
Common Crawl's July 2026 crawl (CC-MAIN-2026-30) recorded 598,298 responses to /llms.txt and /llms-full.txt seed requests, of which 14,191 were empty, leaving 584,107 files analyzed for spec complianc…
A developer warns that many AI crawlers, including GPTBot, ClaudeBot, and PerplexityBot, do not execute JavaScript, making client-rendered websites invisible to them. The post advises using curl to ch…
An engineering team's technical surface for making a brand citable by large language models includes explicit robots.txt allowances for AI crawlers, llms.txt and llms-full.txt files, structured data w…
A 41-day experiment reported by Search Engine Land found that JavaScript-powered navigation can hide website pages from AI crawlers. GPTBot and ClaudeBot discovered zero pages available only through J…
A developer found that most AI crawler traffic on their site is fake, with only 468 of 1,459 requests actually fetching articles. Using Cloudflare's verifiedBotCategory, they showed that only 13% of G…
An AI crawler is an automated bot that fetches web pages to feed AI systems, either for training models like GPT and Claude or for live retrieval so AI answers can cite sources. Major crawlers include…
A 41-day field experiment by SEO engineer Vinicius Stanula found that JavaScript-injected navigation creates a discovery gap for AI crawlers. Pages linked only through JavaScript were not discovered b…
GEO (Generative Engine Optimization) is the practice of optimizing content so that generative AI systems like ChatGPT, Perplexity, Gemini, and Google's AI Overviews cite and attribute it in their answ…
Cloudflare's managed robots.txt blocks eight AI crawlers, but a developer's analysis reveals it excludes OpenAI's OAI-SearchBot and Perplexity's crawler, meaning ChatGPT search and Perplexity can stil…
Small businesses should adopt a nuanced AI crawler access policy rather than blanket allow or block decisions, according to guidance from Cloudflare, OpenAI, Perplexity, and Anthropic. The recommendat…
Prominara's 2026 GEO guidance recommends blocking GPTBot, ClaudeBot, and Google-Extended via robots.txt and X-Robots-Tag headers to prevent model training while allowing citation/search agents, preser…
An engineer's checklist reveals why AI assistants often fail to cite web pages: crawlers like GPTBot, ClaudeBot, and PerplexityBot may be blocked by robots.txt or CDN settings, or pages may rely on cl…
A developer explains the distinct roles of robots.txt, sitemap.xml, and llms.txt, using metaphors: robots.txt is a fence, sitemap.xml is a map, and llms.txt is a brief. The post clarifies common misco…
In a 30-day server-log census of dejan.ai's machine-readable files, Google, Anthropic and OpenAI crawlers fetched robots.txt 1,150 times, the OKF content bundle 23 times, and llms.txt 4 times (none fr…
TollBit's H1 2026 data found that ChatGPT-User ignored explicit robots.txt disallow instructions on 54% of its scrapes and reached disallowed pages on more European publisher sites than any tracked bo…
A ReadableByAI Index found that 25.5% of 145 YC Fall 2025 startup homepages are empty client-rendered shells to AI crawlers like GPTBot, ClaudeBot, and PerplexityBot, compared to 2.9% of 455 establish…
A developer built a tool that checks how visible websites are to AI engines like ChatGPT, Perplexity, and Gemini, revealing that most sites are failing at Generative Engine Optimization (GEO). The too…
A spoofing campaign is scanning thousands of websites for AI credential files, including Claude settings and .env files, while disguising itself as legitimate AI crawlers like ClaudeBot and GPTBot, ac…