Free · no sign-up

Free tools for your website

Check once, without signing up. If you want to keep an eye on it permanently, fastry monitors it for you.

OG-Checker Check for free how your link is displayed on social media. You see the preview for Facebook/LinkedIn, X, Slack and WhatsApp, all tags found and hints about what's missing. Check now →
Header checker Check the security headers of your page for free. You get a grade from A to F, see which protection settings are missing and get matching lines for nginx, Apache and Cloudflare. Check now →
Redirect tracer Check for free which stops an address is redirected through. You see every redirect with status and duration – and whether unnecessary detours or a loop have crept in. Check now →
hreflang-Checker Check the hreflang details of your multilingual page for free. We load every linked language version and check whether it links back and whether the language codes are correct. Check now →
SSL-Checker Check the SSL certificate of your domain for free: who issued it, how long it is still valid, whether the chain is complete and which TLS version your server speaks. Check now →

Don't just check once – keep an eye on it permanently

fastry monitors your website regularly and lets you know when something changes.