Monitoring Products

NetTests turns one-off diagnostic checks into continuous, scheduled monitoring. Choose the monitoring type that fits your infrastructure — or run them all.

Start monitoring free → Try the free diagnostic tools

Website Monitoring

Know the moment your website goes down.

Continuously check your website's availability, HTTP status codes, and response time from multiple locations. Get alerted immediately when something breaks — before your customers notice.

SSL / TLS Monitoring

Never let a certificate expire unexpectedly.

Track certificate expiry dates, chain validity, cipher strength, and OCSP status on a schedule. Receive alerts weeks before expiration so renewals never become emergencies.

DNS Monitoring

Detect DNS changes and propagation failures instantly.

Monitor A, MX, TXT, CNAME, and DNSSEC records across multiple resolvers. Catch unauthorized changes, propagation delays, and misconfigured records before they cause outages or email delivery failures.

API Monitoring

Validate every endpoint, on every deployment.

Send scheduled HTTP requests to your REST or GraphQL APIs, validate responses, measure latency, and alert when endpoints return unexpected status codes, slow responses, or malformed data.

Email & Deliverability Monitoring

Stop email problems before they stop your business.

Continuously verify SPF, DKIM, DMARC, MX records, and blacklist status. Catch authentication failures and deliverability issues before they silently discard your messages.

Certificate Monitoring

Automated expiry tracking for every certificate you own.

Track TLS certificate expiration across all your domains, including wildcard and SAN certificates. Receive advance warnings so renewals happen on your schedule, not in an emergency.

Synthetic Monitoring

Simulate real users — catch failures before they do.

Automate browser-level user journeys — logins, checkouts, form submissions — and verify they complete successfully on every run. Move beyond simple uptime checks to true end-to-end validation.

Performance Monitoring

Measure what users actually experience.

Track time-to-first-byte, page load time, and response latency from multiple geographic locations. Identify regressions the moment they appear, before they affect SEO or conversion rates.

Uptime Monitoring

Real-time availability tracking for every service you run.

Monitor HTTP endpoints, TCP ports, and ping targets around the clock. Historical uptime reports give you the data needed to meet SLA commitments and demonstrate reliability to clients.

Port Monitoring

Confirm every service port is reachable.

Continuously probe TCP and UDP ports to verify that databases, mail servers, SSH, and other services are listening and accepting connections.

Domain & WHOIS Monitoring

Never lose a domain to an unexpected expiration.

Track domain registration expiry dates, registrar details, and nameserver assignments. Receive advance alerts so renewals happen long before the grace period.

Blacklist & Reputation Monitoring

Know immediately if your IP or domain is blacklisted.

Check your sending IPs and domains against dozens of major blocklists on a schedule. Early detection gives you time to investigate and delist before email deliverability is affected.

Keyword & Content Monitoring

Verify your content is always what you expect.

Load your pages and confirm that critical keywords, phrases, or elements are present in the response. Catch content regressions, defacement, and caching errors automatically.

Cron Job & Heartbeat Monitoring

Know when your scheduled jobs stop running.

Register a heartbeat URL that your cron jobs, batch scripts, or background workers ping on completion. If a check-in is missed, NetTests alerts you immediately.

HTTP Header & Status Monitoring

Verify security headers and redirect chains on every check.

Inspect HTTP response headers — HSTS, CSP, X-Frame-Options, redirects — and alert when they change or disappear. Catch misconfigurations before they become security incidents.

One platform. Every monitoring type.

Set up monitors in minutes, receive alerts via email or webhook, and review historical trends — all from a single dashboard.

Get started free →