Copied from reddit

I built an open-source Python tool that scans the I2P NetDB using nothing but vanilla i2pd floodfills. No patched binaries, no active probing — just parse the routerInfo files i2pd already writes to disk.

Repo: https://github.com/iasds/i2p-network-scanner

How it works

Run a few i2pd floodfill instances with different identities. Each covers a different DHT shard, so together they passively collect RouterInfo from most of the network. A single Python script parses the raw .dat files and extracts ident hashes, IPs, versions, caps flags, transports, and bandwidth tiers. Companion tools handle SQLite import, CLI queries, and GeoIP enrichment.

I ran a scan and published the results

5 floodfills, ~24 hours. The full analysis is in the repo:

17,541 known routers — 5,205 with public IPs, 12,336 behind NAT or firewalled
70% hidden is not a coverage gap — routers behind NAT simply don't include a host= field. That's I2P by design.
4,976 unique IPs across 111 countries
Top countries: US (1,120), Russia (507), Germany (366), Canada (199), Netherlands (198)
China has only 72 public nodes. Iran has 96.
0.9.68 dominates at 47% of routers, but only 11% of them publish an IP. Newer 0.9.69 (20% share) has 55% public rate.
Java I2P is essentially extinct — nearly everything runs i2pd.
90 floodfills worldwide, concentrated in US, Russia, and Germany.
Only 76 routers declare X-tier bandwidth (>2 MB/s).

Full report: I2P_NETWORK_ANALYSIS.md

If anyone has historical NetDB snapshots I'd love to compare trends over time. PRs welcome.

no comments (yet)

sorted by: hot top new old

there doesn't seem to be anything here

this post was submitted on 27 Jun 2026

10 points (100.0% liked)

The Invisible Internet Project

1994 readers

1 users here now

I2P Community Edition

This isn't the official I2P channel, if you want go there then you can find it in the links below.

Rules

Be nice and friendly
Don't spam
No darknet markets
No malicious content
No closed source software
No excessive self promotion
No violence or hate speech
I2P related posts only
Please use English
No illegal file sharing
Lemmy rules also apply here
No crypto-currency

"Don't be a dick" - Wil Wheaton

General

Main project site (clearnet)
I2P Forum (clearnet) Official I2P community and development forum
zzz zzz's personal website, old developers forum
planet.i2p RSS aggregator

Media:

Incogtube - Youtube front end

File Hosting and Pastebins

FS Filesharing service
Cake Pastebin short term filesharing and pastebin
PrivateBin Encrypted pastebin
IDK's CowYo pastebin, Mirror (Requires JS)

Torrents

PaTracker Main torrent tracker
Chudo's Torrents (French) torrent tracker
Simp

Social Networks and Microblogging

Teddit - Privacy respecting Reddit front end
Ramble - Multi-Network reddit alternative

Exploring I2P

Notbob List online .i2p sites and categorizes them

I2P Name Registries

inr.i2p
reg.i2p operated by PurpleI2P Team
dns.chudo.i2p
isitup.i2p Another I2P Name Registry and checking tools to see if a eepsite is offline.

Search engines

IRC

Irc2P comes pre-configured with I2P. To connect with other networks, please follow this tutorial.

Irc2P (works out of the box)

Syndie

An open source system for operating distributed forums in anonymous networks

Syndie Project Syndie Project Website
Syndie Documentation Project
syndie.darrob.i2p
syndie.echelon.i2p
syndie.inscrutable.i2p
syndie.killyourtv.i2p
syndie.meeh.i2p
syndie.welterde.i2p

Inproxies

You can use inproxies to surf the I2P network without having to have an I2P router.

i2phides.me / i2p.mk16.de (i2p-inproxy.mk16.de)
onion.ly
www.darknetproxy.com

founded 3 years ago

MODERATORS

CAVOK@lemmy.world

idki2p@lemmy.one