Know when your site breaks.
Find out why.
Monitor uptime and diagnose SSL, DNS, redirects, HTTP issues, domain expiry and more. Free tools when you need them. Automatic monitoring when you don't.
Check anything. No signup required.
View all tools →Fast, free tools for the problems that keep websites from working.
Check status codes, response headers, caching, security headers and server configuration.
Try it →Check certificate validity, expiration, issuer, TLS configuration and certificate chain.
Try it →Follow every redirect and spot loops, broken hops and unnecessary chains.
Try it →See how your DNS resolves across servers around the world.
Try it →Check when a domain expires before it catches you by surprise.
Try it →Check email authentication and find missing or broken DNS records.
Try it →See exactly where a page's load time goes, from DNS to first byte.
Try it →See which AI crawlers and search engines your robots.txt lets in.
Try it →Grade your security headers and see exactly what to add.
Try it →Don't keep checking. Let Pinger watch it.
Add your sites once. Pinger monitors them around the clock and alerts you when something goes wrong.
Built for people responsible for websites.
All use cases →One site or three hundred, the failures are the same. What changes is how long it takes to notice.
Watch the robots.txt, redirect, SSL and DNS changes that quietly cost you crawl budget, indexation and traffic.
Explore →Watch every site you manage from one account, with alerts quiet enough that you still read them.
Explore →Monitor the things that matter for websites without deploying or configuring a heavyweight infrastructure monitoring platform.
Explore →Pinger watches your website and alerts you when it stops working, while its diagnostic tools help you understand why.
Explore →Track sites, SSL certificates, DNS and domain expiration across your portfolio from one place.
Explore →Three steps. A few minutes.
No agent to deploy, no SDK to install, nothing to configure in your stack.
-
01Add your site
Paste the domain. Pinger works out where it actually resolves, including whether you serve from the apex or www.
-
02Pinger checks it
Uptime and response time every few minutes. SSL, DNS, domain expiry and robots.txt on their own schedules.
-
03Get alerted when something breaks
Email, Slack or a webhook, once per incident rather than once per failed check, and again when it recovers.
The specifics, if you want them.
HTTP status and latency every few minutes, with ninety days of history. One alert per incident, not one per failed check, and Pinger stays quiet when the fault is ours rather than yours.
Validity, expiry, issuer and the full chain, plus the negotiated TLS version, cipher suite, key size and whether the connection has forward secrecy.
A, AAAA, MX, NS, TXT and CNAME records, fingerprinted so a change is a change. Propagation checked across public resolvers worldwide.
Registrar, registration dates, status and nameservers, with expiry warnings well before the date.
The full redirect chain including loops and dead hops, response headers, and a weighted grade for the security headers a URL actually serves.
robots.txt changes, resolved access for 28 AI and search crawlers, sitemap additions and removals, and diffs on the page content you choose to watch.
Checks run on their own schedules, from uptime every few minutes to WHOIS twice a day. Alerts go to email, Slack or a webhook.
Most things that break a website never take it offline.
An uptime check tells you the server answered. Pinger tells you whether the site still works.