Free Monitoring Tools
One-off checks for the things that break quietly. No account, no email address, no limits worth mentioning.
Is It Down?
Check a site from every Pingniner monitoring location at once. The single-server checkers cannot tell you whether it is down everywhere or only from where they happen to sit.
Website Speed Test
How fast a site answers from nine locations, split into DNS, connection, TLS handshake, server wait and transfer — so you can see which part is the slow one.
DNS Checker
A full report on a domain's DNS, asked of its own nameservers: does the registry agree with the zone, do the nameservers agree with each other, is any of them answering queries it should not.
IP Blacklist Checker
See whether an IP is listed on the blacklists mail providers actually consult. Tells you which lists, and links to each delisting process.
SSL Certificate Checker
Who issued a certificate, when it expires, how many days are left, and every hostname it covers.
Cron Expression Tester
Paste a cron expression and see the next five times it will actually fire, in any timezone.
SPF, DKIM & DMARC Checker
The three DNS records that decide whether your mail reaches the inbox, and what yours actually say — including whether your DMARC policy enforces anything.
Redirect Checker
Follow a URL hop by hop: every status code, every destination, any loop, and anything travelling unencrypted.
Domain Lookup
Registrar, registration date, expiry, nameservers and DNSSEC, read from the registry over RDAP.
Uptime & SLA Calculator
How much downtime each uptime percentage actually allows. Three nines is 43 minutes a month.
These answer a question once
Every one of them describes a moment in time. Pingniner watches the same things continuously and tells you when they change — which is the part that actually saves you.
Start monitoring free5 monitors free, no card required.
Other free tools: Is it down? · Speed test · DNS checker · Blacklist checker · SSL checker · Cron tester · SPF/DMARC · Redirects · Domain lookup · SLA calculator