Protocol Tools

The protocol tools we detect on new sites, ranked by how many use each. Part of Infrastructure.

Tools tracked
23
in Infrastructure
Sites
3,029,920
using at least one protocol tool
Above 1%
1
tool on more than 1% of them

What we found

  1. HTTP/3 runs on more than half of the sites using a protocol tool (>99%), 23488 times as many sites as Tor Onion Service.
  2. Only one of the 23 protocol tools we track runs on more than 1% of these sites.
  3. Among sites launched in September, carbon.txt rose to #3 from #10 in August.

The leading protocol tools

# Movement Tool Country Share Bar Sites 90 days
1 – HTTP/3 The third major version of HTTP, which runs over the QUIC transport for faster connection setup and better performance on unreliable networks. >99% 3,029,920
2 – Tor Onion Service Site declares an .onion mirror reachable through the Tor network via the Onion-Location response header. <0.1% 129
3 ▼3 United States Semantic Standard Markup standard for US local news sites that declares structured publisher, locality and licensing metadata. <0.1% 40
4 ▼1 I2P Anonymous peer to peer overlay network whose sites are addressed under the .i2p pseudo top level domain. <0.1% 11
5 ▼1 njump Web gateway that renders Nostr notes and profiles as ordinary web pages for readers without a Nostr client. <0.1% 8
6 TDM Reservation Protocol W3C protocol letting a website declare whether its content may be used for text and data mining, including AI training. <0.1% 7
7 ▼3 AT Protocol Open protocol for decentralised social publishing, using at:// URIs and DID identifiers to link a site to its author record. <0.1% 6
8 ▲7 carbon.txt Open standard for publishing verifiable claims about the energy and carbon footprint of a website and its hosting. <0.1% 6
9 ▲7 Agent2Agent Protocol Open standard for interoperable communication between independent AI agents, governed by the Linux Foundation. <0.1% 5
10 ▼1 WebTorrent Tracker Public WebRTC tracker endpoints used by browser based BitTorrent clients to find peers. <0.1% 5

Share is of the 3,029,920 sites using a protocol tool; a site can use more than one. Arrows compare each tool's rank among sites launched in September with August. The line is its share of new sites over 90 days. Showing the top 10 of 23.

Watches, exports and the API give you every protocol tool and the sites using each, from £15 a month.

Recently launched products using protocol tools

Product Launched
Verbs 19 Oct 2026
Marcus 19 Oct 2026
JuicySMS 19 Oct 2026
Blurdata 19 Oct 2026
CanaryGuard 19 Oct 2026
Tailgate 19 Oct 2026

Often built with

Other kinds of tool most often found on the same sites, leaving out the plumbing every site has (DNS, CDN, hosting).