hostnag

Tools and assessments

Any check run once from one address box, and a client review or an audit kept as an assessment: your notes and verdicts, run again for a before and after, printed, shared or exported.

Start freeSee pricing

Included on every plan.

PlansFreeProBusiness
Checks
website, certificate, domain, DNS, mail, SPF, DKIM, DMARC, blocklists, port, ping, a vendor status page, and Discover
Runs
60 an hour per organization
Report
print or PDF, a share link, CSV and JSON
Who
everyone in the organization reads; members and up run and edit

The report

A sample client review, drawn by the report itself: the page a share link opens.
Acme · Assessment

Acme Retail: quarterly review

acme.example and its storefront

Last checked 26 Sept 2026, 22:00 UTC

Checks4OK3Needs work1

Notes

Storefront and mail look healthy. The certificate is past the point its renewal should have run; the renewal job is on the old web server.

Checks

CheckTargetStatus
Certificateshop.acme.exampleNeeds work
Websitehttps://shop.acme.example/Up
Domainacme.exampleValid, 211 days left
DNSacme.exampleOK

Certificateshop.acme.exampleExpires in 17 daysMarked Needs work

Renewal job lives on web-01, retired in August. Moving it to the load balancer.

Result

from US East
Expires in 17 days88ms
Runway17 d left of 90
Issued to
shop.acme.example
Issuer
Let's Encrypt R11
Expires
14 Oct 2026
Valid for host
Yes
Days left
17
Valid from
16 Jul 2026
Names
shop.acme.example
Fingerprint
AA:BB:CC

Websitehttps://shop.acme.example/Up

Result

from US East
Up212ms
Status code
200
Final URL
https://shop.acme.example/
Body
48211 bytes

Domainacme.exampleValid, 211 days left

Result

from US East
Valid, 211 days left310ms
Runway211 d left of 365
Registrar
Example Registrar
Expires
27 Apr 2027
Days left
211
Nameservers
ns1.acme.example, ns2.acme.example
DNSSEC
Not signed
Statuses
client transfer prohibited

DNSacme.exampleUpMarked OK

Result

from US East
Up18ms
Record type
MX
Answer
10 mail.acme.example
Resolver
system default

How it works

  1. 01

    Paste an address

    Quick check reads it and ticks the checks that fit: a URL gets the website and its certificate, a domain its registration, mail and DNS, an IP a ping. Any result becomes a monitor in one click.

  2. 02

    Gather checks into an assessment

    A title, who it is for, notes, and the checks, each with a note of its own and your own verdict: OK, needs work, or an accepted risk. Discover lists the names under a domain and adds checks for the ones you pick.

  3. 03

    Run it again

    Run one check or all of them for a before and after; every run is kept, and the report reads the latest.

  4. 04

    Hand it over

    Print it or save it as a PDF, share a link that works without an account (turn it off or make a new one any time), or export the checks as CSV or JSON.

Questions

How is this different from a monitor?

A monitor runs on a schedule and alerts. A check in Tools runs when you press it and alerts nobody, which is what a review, an audit or a first look at a new client wants. Either becomes the other: a result is one click from a monitor.

Does the person I share the report with need an account?

No. The share link opens the report as it stands, targets included, and stops working the moment you turn it off.

Related

Discovery and takeoverEvery name under a domain, found in its own DNS, its homepage and the names people usually use, each judged live, gone or pointing nowhere, with the ones anyone could claim listed first.Certificate monitoringEvery certificate hostnag can reach is watched for expiry, a swapped chain and a renewal that should already have happened; the ones it cannot reach get a URL to report to instead.Uptime monitoringWebsites, APIs and anything that answers on a port, checked every minute from up to five places, with a failure confirmed before anyone is paged.

Add a host. Hear about it first.

Start free