ABOUT
BIT HAPPENS.
Free diagnostic tools for people who run infrastructure, with every result explained and the source of each piece of evidence in plain view.
A portal run by Bit Happens
Bit Happens is run by Bit Happens Ltda (Brazilian company registration CNPJ 33.928.975/0001-33), a technology company based in Curitiba, Brazil. It grew out of the daily work of running servers, networks, domains and email: having the checks that usually take several sites and commands in one place.
It is built for sysadmins, infrastructure and support teams, and anyone looking after a domain or a mail server without being a specialist.
Local when possible, remote only when needed
- In your browser: subnet maths, hashes, Base64, JSON, UUIDs, timestamps and parsing of email headers and traceroute output never leave your computer.
- Public lookups: DNS (over HTTPS), RDAP, Certificate Transparency and ASN context come from public sources, queried by the portal's infrastructure.
- Controlled external tests: Port Check, HTTP/HTTPS and distributed traceroute are rate limited, protected against abuse and only accept public addresses.
- Evidence with a source: every result says where it came from and what still needs local confirmation. Nothing passes just because it exists.
Diagnostics, not attacks
The portal does not exploit vulnerabilities, try credentials, mass-scan or grab service banners. Only use external tests on assets you run or are authorised to test, as set out in the Terms of use.
Get in touch
To report a bug, suggest a tool, make a request about your data or report a vulnerability, use the form below or email info@bithappens.com.br. Details help: the page, an example target and the error message.
If a tool found a problem and you would rather not touch DNS, email or the server yourself, Bit Happens can fix it: pick the subject “Have Bit Happens fix a problem” and tell us the domain.
Privacy matters follow the Privacy policy. Vulnerabilities can also be reported to the address in security.txt.
Tools and guides
Browse the tool directory, start with Network Diagnostic if you don't know where the problem is, or read the guides before interpreting a result.