#Layer4
Live, measured metrics for the hashtag #Layer4 from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #layer4
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · mas.to (Mastodon public tags API) · fetched 2026-09-29 17:26 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mas.to (Mastodon public search API) · fetched 2026-09-29 17:26 UTCNo related tags with measured usage found for #layer4.
Live pulse
measured · mas.to (Mastodon tag timeline) · fetched 2026-09-29 17:26 UTCEverything below is measured over the latest 1 public posts.
Posting hours (UTC)
Languages: English (1)
Avg boosts / post: 1
Top of the latest posts
This week I'm looking at TCP flags. What exactly are they signaling? What responses can you expect? https://ubritsa.com/posts/tcp-raising-the-wrong-flags/ #TCP #Flags #Scanning #Nmap #Reconnaissance #RFC793 #Layer4 #StatefulInspection
What “layer4” means
Wiktionarylayer/leɪə/
- nounA single thickness of some material covering a surface.
- verbTo cut or divide (something) into layers
#layer4 across platforms
every network with a public tag surfaceFollow #layer4 straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/layer4