Free tools · No account needed
Registrar, creation and expiry dates, nameservers and transfer lock of any domain. The expiry date is the one that takes sites down without warning.
Example: tusitio.com or https://www.tusitio.com. Takes a few seconds.
Since 2018 most registries hide personal data. The registrar, the dates and the nameservers are still public.
The site and the email stop working. There is usually a grace period of a few weeks to renew it at the normal price, and then a much more expensive redemption period.
Yes. Country domains (.mx, .com.ar, .cl, .es, .co and the rest) are queried through their official registry service.
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...
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...
We request the site right now from our server and tell you the status code and the respons...
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...