Bulk Site Checker
Check the availability and performance of multiple websites at once.
Why check multiple sites at once?
If you manage several websites — for yourself or for clients — manually checking each one is slow and error-prone. The Bulk Site Checker runs all checks concurrently, giving you a clear, side-by-side view of the status, response time, and security posture of every site in seconds.
Frequently Asked Questions
There is no hard limit, but we recommend checking up to 20 sites at a time for the best experience. Very large batches may be rate-limited by the target servers.
You can separate URLs using commas, semicolons, spaces, or new lines — whichever feels most natural.
Yes. All URLs are checked concurrently, so the total time is roughly the time of the slowest site, not the sum of all.
Response time measures how long the server takes to reply to the initial request. Values under 200ms indicate a fast, well-optimized server. Comparing response times across multiple sites helps identify which ones may need performance optimization.
HTTPS encrypts data between users and the server, ensuring privacy and security. It is also a significant ranking factor for SEO. Our bulk checker flags any sites still using unencrypted HTTP connections.
Security headers are instructions sent by the server to the browser to protect against common vulnerabilities like XSS, clickjacking, and data injection. Checking them across all your sites helps identify security gaps before they become problems.
Status codes indicate the result of a request. 200 means success, 301/302 indicate redirects, 404 means the page was not found, and 500+ indicates server errors. Monitoring these across multiple sites helps catch issues early.
Each redirect adds latency and can impact SEO. When checking multiple sites, this tool helps you identify which domains have unnecessary redirect chains that should be simplified.
HTTP Strict Transport Security (HSTS) tells browsers to only connect via HTTPS, preventing downgrade attacks. Checking HSTS across all your domains ensures consistent security policies.