#portscan
Live, measured metrics for the hashtag #portscan from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #portscan
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 · mastodon.online (Mastodon public tags API) · fetched 2026-10-19 06:21 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · mastodon.online (Mastodon public search API) · fetched 2026-10-19 06:21 UTCLive pulse
measured · mastodon.online (Mastodon tag timeline) · fetched 2026-10-19 06:21 UTCEverything below is measured over the latest 22 public posts (spanning ~49509 hours).
Posting hours (UTC) — busiest: 13:00
Languages: English (21)
Avg boosts / post: 0.5
Top of the latest posts
20K IPs scanning our IPv4 SSH ports and testing our defenses for free (bis). We're so grateful. A graph showing a massive increase in SSH scanning over the last week. #SSH #PortScan #Scan
10K IPs scanning our IPv4 SSH ports and testing our defenses for free. Lovely. #SSH #PortScan #Scan #IPv4
Enable sfportscan preprocessor in Snort to detect TCP SYN, UDP, and ICMP scans. Uses a sliding window algorithm to track source IP, destination IP, and protocol, classifying scans as portscan or portsweep. Deploy on Ubuntu 22.04, Debian 12,
What “portscan” means
WikipediaA port scanner is an application designed to probe a server or host for open ports. Such an application may be used by administrators to verify security policies of their networks and by attackers to identify network services running on a host and exploit vulnerabilities.
“Port scanner” on Wikipedia (CC BY-SA) →#portscan across platforms
every network with a public tag surfaceFollow #portscan 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/portscan