Download the PHP package vlados/laravel-blade-crawler-detect without Composer

Laravel Blade Crawler Detect

Two Blade directives that boost your Lighthouse and PageSpeed scores without changing a thing for real users.

Wrap your cookie banner, chat widget, analytics scripts, video embeds and other heavy chrome in @user ... @enduser. Bots like Googlebot, Lighthouse and PageSpeed will skip it entirely; humans see the same experience as before.

Result: lighter HTML for crawlers, better Core Web Vitals, more crawl budget spent on the content that actually matters — and zero JS or middleware changes.

Why developers reach for this

• Better Lighthouse / PageSpeed scores. Audit tools render the page like a low-power phone. Strip the widgets they don't need and the score climbs.
• Better Core Web Vitals. LCP, INP and CLS all benefit when crawlers stop pulling in chat libraries and consent banners.
• More crawl budget for real content. Googlebot fetches less JS, indexes more pages.
• One-line wrap. No middleware, no service container plumbing, no view composers — just Blade.
• Octane-safe. Reads the user agent per request, so long-running workers don't serve stale data.
• ReDoS-hardened. User-agent input is clamped before any regex runs.
• Up to date. Built on jaybizzle/crawler-detect (thousands of bots, regularly updated) plus Lighthouse and PageSpeed out of the box.

Install

That's it — the service provider auto-registers. No config file, no migrations, no env vars.

Requires PHP 8.1+ and Laravel 10, 11, 12 or 13.

The two directives

@user — render only for humans

Anything that hurts your audit score, is invisible to bots anyway, or just doesn't need to ship to crawlers.

@unlessuser — render only for crawlers

Server-render the SEO-friendly equivalent of something you ship as JS to humans.

Real-world wins

What "crawler" means

Detection is delegated to jaybizzle/crawler-detect, a battle-tested PHP library that ships a regex covering thousands of bots — Googlebot, Bingbot, DuckDuckBot, AhrefsBot, SemrushBot, Applebot, and so on.

This package additionally treats these as crawlers, since they typically run as audits rather than real visits:

• Chrome-Lighthouse
• Google Page Speed

Want to add your own? You can swap or wrap the CrawlerDetect instance through Laravel's container.

Performance

The crawler regex is compiled once per process (so Octane workers compile it at boot, traditional FPM workers compile it on first hit). Each render only does:

1. One substr to clamp the UA to 2KB.
2. One preg_replace for exclusions.
3. One preg_match against the compiled crawler pattern.

No DB queries, no cache lookups, no allocations beyond the strings above.

Octane / Swoole / RoadRunner

Safe by design. The user agent is read from the current request inside the directive's closure, so long-running workers always see the active request's UA — never a stale one cached at boot.

When NOT to use this

This package is a tool for hiding things crawlers don't need (heavy widgets, third-party scripts, modal chrome). It is not a tool for showing crawlers different content than you show users — that's cloaking under Google's spam policies and can earn a manual penalty. Use @unlessuser for SSR-equivalents of things you JS-render for humans, not for keyword stuffing.

Testing

Changelog

Please see CHANGELOG.

Contributing

Please see CONTRIBUTING.

Security Vulnerabilities

Please review our security policy on how to report security vulnerabilities.

Credits

• Vladislav Stoitsov
• jaybizzle/crawler-detect — the regex behind this package
• All Contributors

License

The MIT License (MIT). Please see License File for more information.