All tools

Domain Health Check

One domain. Six live checks in parallel - SSL, WHOIS, DNS, MX, Ping, and HTTP. You know what is healthy and what to monitor.

Enter a domain - results open on a separate page (SSL, WHOIS, DNS, MX, Ping, HTTP)
SSL Waiting

Certificate validity and expiry

Open SSL checker
WHOIS Waiting

Registration and domain expiry

Open WHOIS lookup
DNS Waiting

Core DNS records

Open DNS lookup
MX Waiting

Mail server records

Open MX lookup
Ping Waiting

Reachability and latency

Open Ping test
HTTP Waiting

Response status and headers

Open HTTP headers

Overall grade

  • See OK, warning, or critical in one glance
  • Know which signal needs action first
  • Skip guessing across separate tools
  • Share a clear status with your team

Six live checks

  • Cover SSL, WHOIS, DNS, MX, Ping, and HTTP together
  • Catch expiry, mail, and downtime risks early
  • Save time vs running each checker by hand
  • Get fresh results from live probes

Monitor next

  • Turn a one-off check into ongoing alerts
  • Get notified before visitors hit a failure
  • Watch SSL, DNS, and uptime without daily manual checks
  • Start free - no credit card required

No account required · Free · Results in under 1s

What is a domain health check?

A fast cross-check across the signals that usually break sites and email

A health check answers several at once: is the certificate valid, is the domain still registered, do DNS and MX resolve, is the host reachable, and does HTTP respond.

We run SSL, WHOIS, DNS, MX, Ping, and HTTP in parallel against the same domain, then grade each result so you can see what is OK and what needs action.

Use it after deploys, DNS changes, or registrar updates. When something looks risky, start TotalSiteControl monitoring so the next change triggers an alert instead of an outage.

Get 30 monitors FREE

Start free monitoring with email alerts. No credit card required.

How to use the Domain Health Check

Six live checks from one form - no account required.

  1. Enter the domain

    Type the public hostname visitors use, for example yoursite.com.

  2. Run the bundle

    We launch SSL, WHOIS, DNS, MX, Ping, and HTTP together. Cards fill in as each check finishes.

  3. Read the grade and monitor

    Review the overall status, open a full tool for details, then start free monitoring for ongoing alerts.

What this check catches early

Common domain issues and the next step.

Certificate about to expire

Browsers will warn users when TLS lapses. Teams often notice only after tickets start.

Renew and monitor expiry

Fix the certificate, then enable SSL monitoring for 30/14/7-day reminders.

DNS or MX looks wrong after a migration

Mail bounces or the site points at the old host while WHOIS still looks fine.

Verify records, then watch for drift

Confirm DNS/MX in the dedicated tools, then monitor DNS so unexpected changes are visible.

Host is unreachable from outside

Internal checks pass while public users time out.

Fix reachability and add uptime checks

Repair firewall/routing, re-run ping, then monitor uptime for the public hostname.

What you get with monitoring

Comprehensive data

Certificate, DNS, and reachability history in one place.

Trusted & accurate

Checks run from our servers - the same path users hit.

Fast & easy

Turn a one-off check into monitoring in under a minute.

Global coverage

External probes so internal network blind spots do not hide issues.

Instant alerts

Email and Telegram when something fails or is about to expire.

30 monitors free

Start free - no credit card required to begin monitoring.

Get 30 monitors FREE

Start free monitoring with email alerts. No credit card required.

Health check tips

Get a clean signal the first time.

Tip #1 Check the hostname users type

CDN and apex vs www can differ. Start with the public name.

Tip #2 Parallel is intentional

Cards appear as each probe finishes. Total time is close to the slowest check, not the sum.

Show more tips Show less tips
Tip #3 Use full tools for deep detail

Each card links to the dedicated checker when you need the full record set or chain.

Domain health check FAQ

Which checks are included?

SSL certificate, WHOIS registration, DNS lookup, MX records, Ping reachability, and HTTP headers/status - all against the same domain.

Will six checks take six times longer?

No. They run in parallel, so wait time is roughly the slowest probe (often WHOIS or SSL), not the sum of all six.

Can I monitor continuously after this?

Yes. Start free monitoring from the results CTA to get alerts for expiry, DNS changes, or downtime.

Monitor what this check found

Free alerts for SSL expiry, DNS changes, and downtime - no credit card required.

Start Monitoring Free