Feature
DNS & network
Below the website there is a domain, and a domain can be moved out from under you without a single byte of the site changing.
What it does
zutpralik records what your DNS resolves to and tells you when it changes. An A record that suddenly points elsewhere, nameservers that are not the ones you set, an MX record quietly rewritten — these are the fingerprints of a hijacked domain, and they are usually noticed far too late.
The same check doubles as an early-warning system for ordinary mistakes: a migration where one record was missed, a TTL change nobody announced, a staging value pushed to production.
Underneath the DNS layer, TCP-port and ICMP checks confirm that the host itself is reachable, which is what separates “the web server has crashed” from “the whole machine is gone”.
- A / AAAA / MX / NS change detection
- Alerts on nameserver drift — the classic hijack signal
- TCP-port reachability for any port you depend on
- ICMP ping checks for the host behind the site
- SMTP checks for the mail server that carries your client’s business
Works alongside
Uptime & performance
HTTP/HTTPS checks around the clock — down to every 30 seconds. Status codes, response time (TTFB), payload size, plus ICMP ping and TCP-port checks per site.
Read moreSSL, domain & security
Certificate-expiry and domain (WHOIS) expiry alerts days in advance, SSL chain validity, and a security-headers audit (HSTS, CSP, X-Frame-Options).
Read moreContent & keyword checks
Catch the “white screen of death” at HTTP 200: keyword present/absent, unexpected redirects to foreign domains, and page-defacement detection.
Read moreFAQ
About dns & network
Why does a changed NS record matter so much?
Whoever controls the nameservers controls where the domain points, including mail. A nameserver change you did not make is one of the strongest signals that a registrar account has been compromised.
Will DNS propagation set off false alarms?
The check compares against the last recorded answer, so an intentional migration registers once as a change rather than repeatedly. You confirm it and the new value becomes the baseline.
Can I monitor a port that is not a website?
Yes — TCP-port checks work against any port you nominate, which covers mail, databases and internal services exposed to the internet.