MeWeb/README.md

# me-web?

**Can you run your own server from here?** me-web? checks your connection and your device and tells you, in plain
words, what you could host at home, what stands in the way, and what would fix it.

> Status: early development. Version 0.1 is the first release.

## What it checks

Version 0.1 checks, and draws as a path from this device to the internet:

- whether you are online, or behind a login page;
- how this device is connected, and the address your router gave it;
- your public IPv4 and IPv6 addresses, and which device holds them;
- your provider, found offline in a built-in map, with what is usual for it (shared IPv4, an address of your own,
  IPv6, the mail port) and the source and date of each note;
- whether your router answers apps that ask it to open ports (UPnP, NAT-PMP, PCP), and which internet address it has;
- whether your provider shares your public IPv4 address with other customers (CGNAT) or there is a second router
  in the way;
- how your public address has changed across your earlier checks.

Planned for later versions, not in 0.1: whether the outside world can actually reach you, over IPv4 and IPv6; the
kind of NAT; sending mail, residential blocklists and the reverse name; DNS; speed; whether this device is a sensible
server; and sharing your findings to improve the provider map.

## Platforms

Linux (deb, rpm), Windows, macOS and Android. Builds are published as releases of this repository.

## Privacy

me-web? sends nothing anywhere unless a check needs it, and lists every host it contacts ("What this app contacts"
in the app). It has no telemetry, no analytics and no crash reporting. Your checks are kept on your device only.

## Verifying the Android app

The APK is signed with the key whose certificate SHA-256 is
`5f:52:cf:f4:f5:2f:4e:0b:6d:a6:cd:04:4b:fc:ea:f7:8d:1d:42:db:24:f2:47:06:02:db:7f:19:cb:fd:f8:46`
(`apksigner verify --print-certs MeWeb-<version>-android.apk`). Every release also carries `SHA256SUMS.txt`.

## Credits

- Provider map: [iptoasn.com](https://iptoasn.com), Public Domain Dedication and License (PDDL 1.0), fetched for
  every release; the release notes carry its date and SHA-256.
- Provider notes: each operator's own technical sheet (AGCOM 156/23 in Italy) and users' reports on
  [FibraClick](https://forum.fibra.click), each cited in `data/isps/`.
- Icons: [Lucide](https://lucide.dev), ISC licence.
- Typeface: Inter, SIL Open Font License.

## Building

See `CLAUDE.md`. .NET 10, Avalonia 12.

## Licence

GNU Affero General Public License v3.0 (`LICENSE`). © 2026 Arasaka di Hvozdikov Yevheniy.

Translations other than English and Italian are machine drafts until someone reviews them. Corrections are welcome
as issues on this repository.