JayBizzle/Crawler-Detect

Health v2 · maintenance only

Adoption not part of the score

2400 stars · 280 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

CrawlerDetect is a zero-dependency PHP library that detects bots, crawlers, and spiders by matching User-Agent and HTTP_FROM headers against thousands of community-maintained signatures. It exposes a tiny three-method API (isCrawler, getMatches, setUserAgent) and works standalone or with frameworks like Laravel, Symfony, and Yii.

Use cases

• detect bots visiting my php site
• check if a user agent is a crawler
• block spiders and scrapers in laravel
• identify googlebot from request headers
• filter bot traffic from analytics
• detect crawlers from psr-7 request headers

When to choose

• you need lightweight, offline bot detection in PHP with no external API calls
• you want a simple drop-in class with zero dependencies
• you need to inspect headers from PSR-7, Symfony, Swoole, or Lambda requests

When to avoid

• you need behavioral bot detection beyond user-agent matching
• you require real-time IP reputation or JavaScript fingerprinting
• you are not working in PHP or a language with a community port

Facets

library · maturity active

security nlp web-development security developer-tools php bot-detection user-agent crawler-detection zero-dependency

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markdown · JSON · MCP: product_card(name="JayBizzle/Crawler-Detect")