Domain tooling for support teams

See how a domain is really set up

Type a domain name and see its DNS records, certificate, mail setup and registration straight away — with explanations you can forward to a customer.

For example

No account needed. Every check is free.

The lolwuz.nl dashboard showing watched domains and their monitoring status
Tools

Checks that together tell one story about a domain.

DNS, propagation and DNSSEC

Every record on one page, explained record by record. Check whether a change has reached resolvers worldwide, and whether the DNSSEC signatures hold up.

Certificates and redirects

Inspect the certificate a site serves today, work out why a new one won't issue, and follow every hop of the redirect chain to the final page.

Mail and reputation

Send a test message to a generated address and get a report on SPF, DKIM and DMARC. Read raw mail headers, or check whether an IP address is blacklisted.

All tools

Domain health
One check covering DNS, mail and certificates
WHOIS
Find out who is behind a domain, IP address or ASN
Blacklist
See whether an IP address has been reported for abuse
DNS propagation
See which resolvers already have your DNS change
Delegation
Check the nameservers themselves, not the records
DNSSEC
Check that the signatures on a domain add up
SPF
Unfold an SPF record and count its lookups
DMARC
Read the policy, the reports, and what to publish next
DKIM
Find the signing keys and check they still work
Certificate issuance
Work out why a certificate will not issue
Redirects
Follow every hop a browser makes
SSL
Look at the certificate a site is serving right now
Website preview
See the live site, with a quick quality check
Mail test
Send us a test message and see how it scores
Mail headers
Paste a message and read the route it travelled
GDPR
Mask addresses before you share a screenshot
Passwords
Create a strong password in one click
SSL tools
Make a CSR, or check that a key and certificate match
Secrets
Share a password through a link that works once
Monitoring

Follow the domains you manage and hear about it when something changes.

Mark a domain as followed and it gets re-checked on the interval you pick — anywhere from every hour to every two days. After every check you get a Slack message with the current picture, and anything new lands on your overview.

See your findings
  • Checks from every hour to every two days, with a configuration score per domain
  • Findings that close themselves once they are in place
  • Shareable, read-only reports for customers and colleagues
Workspace

Support answers and documentation where you are already looking.

Snippets

Reusable answers with formatting, searchable and taggable by contact reason. Share them across your organisation.

Support documents

A knowledge base per organisation, organised as a tree. Import providers' public articles to get started quickly.

Provider detection

Rules on DNS or nameserver data map a domain to the right hosting provider and its support page.

Access

What you need depends on what you want to do.

Without an account

Every check is free to use.

  • All tools
  • Opening shared report links
  • Password generator and secret links

With an account

Sign in with a magic link sent to your email.

  • Follow domains and choose how often they are checked
  • A Slack update after every check
  • Lookup history per domain
  • Snippets and support documents

For organisations

Work together in one shared workspace.

  • Invite members with roles
  • Shared snippets and knowledge base
  • Manage provider detection
  • Share reports outside your team

Start with a domain name.

Most support questions start with one domain and a customer with a question about it. Paste the name above and work outwards from there.

Open the app