SeaMeWe4 Net Tools is an independent set of free networking calculators. Use the form below for a correction, a wrong result, or any other question — we read and reply to every message ourselves.
Report a wrong calculator result
If a calculator gave you a result that looks wrong, please include the exact input you used (the IP address, prefix, CIDR block, or cities you entered) in the message above — that’s the fastest way for us to reproduce and check it. We test every calculator against a fixed set of example inputs before publishing, so a mismatch usually means either a genuinely new edge case or something worth double-checking on your end; either way we’ll look into it.
If your email client didn’t open, write to us directly at [email protected]. We aim to reply within a few business days.
What else to contact us about
- Corrections: a wrong RFC reference, an outdated cloud-provider rule, or any fact that has changed since we checked it.
- Removal requests: ask us to take down or correct a specific page.
- Copyright concerns: if you believe content here infringes your rights, email us with the page URL and a description of the issue and we will review it.
Who you are writing to
SeaMeWe4 Net Tools is run by an independent individual/team, not a registered network operator, hosting provider, cable consortium, or cloud provider. See our About page for more on what the site is and isn’t.
Frequently asked questions
Will I get a reply?
We read every message. If you leave an email address and your question needs an answer, we’ll reply — usually within a few business days.
Is my message stored anywhere?
No. The form on this page opens your own email application with the message pre-filled; it is sent directly from your email account and is not stored on our server. See our Privacy Policy for what the rest of the site collects.
Can I request a specific new calculator or feature?
Yes — send it through the form above with “General question” selected. We can’t promise every request will be built, but we do read and consider all of them.
Was this page helpful?
One tap tells us which guides need more detail.
Thanks for your feedback!