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We request the site right now from our server and tell you the status code and the response time. No cache, no guessing.
Example: tusitio.com or https://www.tusitio.com. Takes a few seconds.
To keep watching it: website uptime monitoring.
Your DNS cache, your ISP or your office network may be the difference. Try from mobile data, or flush your DNS cache.
Check your hosting status page and your domain expiry. Then create a free account: we check every five minutes on Free and every minute on paid plans, and tell you when it comes back.
Our checks run from our own server, from a single point. Monitoring accounts confirm an outage with three failed checks in a row before alerting.
Everything at once, with a grade from A to F.
See every DNS record of a domain: A, AAAA, CNAME, NS, MX, TXT, SOA and CAA, as our resolve...
Registrar, creation and expiry dates, nameservers and transfer lock of any domain. The exp...
Is the certificate valid, who issued it, when does it expire and which TLS versions does t...
IP address, country, network and the hosting provider we deduce from it. Also whether the...
MX, SPF, DKIM and DMARC. If any of these is missing, anyone can send email in your name, a...
HSTS, Content-Security-Policy, X-Frame-Options and the rest: the headers that protect your...
Where does a URL end up, and through how many hops. Redirect chains slow every visit down...
Meta robots, X-Robots-Tag header and robots.txt. Launching a site with a "noindex" left ov...
Write a network in CIDR notation and get the mask, the range of usable addresses, the broa...
Build the five fields of a cron line without guessing, read back in plain words what an ex...
