Website Monitoring Tools

Run uptime checks, response-time tests, SSL health probes, and multi-region reachability checks against any host — on demand, directly from our network. Use them to diagnose an ongoing incident, validate a deployment, or establish a baseline before launch. For continuous monitoring with alerting, see Website Monitoring →

Monitors

HTTP Request

Send HyperText Transfer Protocol (HTTP) requests with custom method, headers, body, and authentication — inspect the full response.
HTTP Request Timing

Load a Uniform Resource Locator (URL) in headless Chromium and stream every fetched resource with size and timing.
HTTP Quick Check

The simplest possible check: fetch the page, confirm it returns 2xx.
TLS/SSL Quick Scan

Probe which Transport Layer Security (TLS) protocol versions a server accepts and show the cipher each negotiates.
TLS/SSL Deep Scan

Full chain validation, Online Certificate Status Protocol (OCSP) stapling, Signed Certificate Timestamp (SCT) count, and per-Transport Layer Security (TLS)-version cipher matrix.
CORS Tester

Test any Uniform Resource Locator (URL) for Cross-Origin Resource Sharing (CORS) with a custom method, headers, and body — see exactly why a browser would allow or block the request.
Dead Link Checker

Crawl a website and find broken internal links — renders JavaScript (JS) pages with a headless browser.
Site Exposure Scanner

Probe a website for exposed config files, backup dumps, admin panels, and missing security headers — the same ~120 checks attackers run.
Site Standards Check

Verify a site publishes security.txt, robots.txt, sitemap.xml, app-linking files, and other well-known disclosure standards.
TLS/SSL Certificate Expiration

Days remaining before a server's Transport Layer Security (TLS) certificate (and its full chain) expires.
Ping Host

Send Internet Control Message Protocol (ICMP) echo requests and report round-trip time (RTT) and packet loss.

Monitor this automatically

NetTests can run these checks on a schedule, preserve historical results, compare changes over time, and alert you the moment something breaks.

Start monitoring free → See all monitoring products