Keep the route familiar
Watch A, AAAA, CNAME, MX, NS and TXT records. Check that records exist, include your expected values or match the complete set.
KEEP YOUR ADDRESS IN GOOD COMPANY.
Your website has an address. Your email has a route. Your domain has a renewal date. Give those quiet essentials their own owl, with separate DNS and domain-expiry checks in one clear view.
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Watch A, AAAA, CNAME, MX, NS and TXT records. Check that records exist, include your expected values or match the complete set.
Choose a 1–90-day warning window for the expiry date published by the domain registry. Give your team time to check renewal with the registrar.
Not every registry shares an expiry date. Unavailable or ambiguous evidence stays unknown, with no invented healthy result or false recovery.
A MOMENT FROM EVERYDAY MONITORING
A DNS edit quietly removes the mail record. Your homepage still loads, so its HTTP monitor stays healthy. An MX monitor notices the expected record is missing and starts the usual confirmation and alert flow. Different lookouts, one steadier day.
Public resolvers cache DNS records. Changes become visible according to DNS TTLs and propagation; this is not a global propagation test.
SMALL SIGNALS, EVERYDAY WORK
Check that your mail provider’s MX record is still present after a DNS edit.
Expect the CNAME your service needs. A wrong turn should not stay quiet.
Watch a required TXT verification record. Match the text you expect, without surrounding quotes.
Ask for a warning 30 days before the published registry expiry. Then confirm payment and auto-renewal with your registrar.
FROM FIRST STEP TO STEADY WATCH
Open Domains & DNS in Monitors. Choose DNS records or Domain expiry; each has its own focused settings.
For DNS, select records and values. For expiry, enter the registered domain and your warning window.
Use your existing notifications and confirmation rules. DNS failures and verified expiry warnings follow the same incident flow.
ROOM FOR YOUR WATCH
Free: 3 monitors, checks from 5 minutes · Starter: 10 monitors, checks from 3 minutes · Team: 30 monitors, checks from 1 minute · Business: 100 monitors, checks from 30 seconds. Enterprise allowances are arranged with Blastup.
Slack, Teams and mobile push on every plan. Monitor email alerts on paid plans.
Yes. DNS and domain-expiry monitors count toward your normal monitor allowance. Slack, Teams and mobile push are available on every plan; monitor email alerts require a paid plan.
Registry evidence is cached in shared Redis for up to six hours. Expiry monitors support hourly or longer intervals; daily is a useful starting point. Each check compares the known date to the current time.
No. Domain registration and TLS certificates have different expiry dates. Use separate monitors for each.
No. Some registries lack a supported RDAP service or omit a clear expiry date. Those checks stay unknown and do not open or resolve incidents.
No. It reads the registry’s published expiry date. Your registrar remains the source for renewal settings and billing.
These checks use public recursive DNS. They do not inspect private zones or promise visibility from every region.
A HELPING WING
Browse more monitors & detections guides in the help center.