WatchFor

Free tools

A public toolbox of one-off network, DNS, web, email and performance checks — no account needed.

Alongside continuous monitoring, WatchFor offers a full toolbox of free public tools for quick, one-off checks — no sign-up required. They're a great way to diagnose something right now, or to try a check before turning it into a monitor.

Browse them all on the free tools hub.

All-in-one

ToolWhat it does
Smart Website CheckerA combined audit of a site — uptime, performance, security and config in one run.

Performance

ToolWhat it does
Core Web Vitals CheckerReal-browser Core Web Vitals (LCP, CLS, INP) and a Lighthouse-style score.

DNS

ToolWhat it does
DNS LookupResolve a name and inspect its records.
DNS PropagationSee how a record has propagated across global resolvers, on a world map.
Whois LookupRegistration and ownership details for a domain.

Network

ToolWhat it does
PingReachability and round-trip time to a host.
TracerouteThe hop-by-hop path packets take to a host.
Port CheckerWhether a TCP port is open and accepting connections.
Blacklist CheckWhether an IP or domain is on common blocklists (RBLs).
What Is My IPYour public IP, geolocation, ASN and reverse DNS.

Web

ToolWhat it does
SSL Certificate CheckCertificate validity, chain and days until expiry.
HTTP HeadersInspect the response headers a URL returns.
CDN CheckerDetect which CDN / edge provider serves a site.
Sitemap CheckerValidate that sitemap.xml is present and well-formed.
Brotli CheckerWhether responses are served with Brotli compression.

Email

ToolWhat it does
Email HealthA combined view of SPF, DMARC and DKIM for a domain.
SPF CheckerValidate a domain's SPF record.
DKIM CheckerCheck a domain's DKIM signing record.
DMARC CheckerCheck a domain's DMARC policy.

Calculators

ToolWhat it does
Uptime / Downtime CalculatorTurn an uptime percentage (e.g. 99.9%) into real allowed downtime.

Shareable results

Most tools produce a shareable link — run a check, send the URL to a colleague, and it re-runs with the same input. Some also offer a downloadable map or image of the result.

Like a tool? Most of them map to a monitor type — turn a one-off check into continuous monitoring with alerting in a couple of clicks.

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