#helloworld

Live, measured metrics for the hashtag #helloworld from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.

hashtag.org network · sponsored

Own #helloworld

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.

$23.52/ year · 10-character #name
Claim #helloworld — $23.52/yr→Buy on hashtag.space (web3)
card via hashtag.org · tokens via hashtag.space
27
Uses / 7 days
Mastodon
8
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0.2/hr
Recent pace
Mastodon · last 40
0.4
Avg reactions / post
Mastodon · last 40
—
Reddit posts / month
Reddit search
—
Open-web mentions
hashtag.org Firehose

Day-by-day usage

measured · mastodon.social (Mastodon public tags API) · fetched 2026-09-08 06:12 UTC
4
09-02
4
09-03
4
09-04
4
09-05
6
09-06
4
09-07
1
09-08

27 uses by 8 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · mastodon.social (Mastodon public search API) · fetched 2026-09-08 06:12 UTC
#helloworldled
0 uses · 0 accounts / 7d
#helloWorld20
0 uses · 0 accounts / 7d
#helloworldカルタ
0 uses · 0 accounts / 7d
#helloworldbis
0 uses · 0 accounts / 7d
#helloworld_qiita
0 uses · 0 accounts / 7d
#helloworldかるた
0 uses · 0 accounts / 7d
#helloworldsystem
0 uses · 0 accounts / 7d
#helloworldmedialaunch
0 uses · 0 accounts / 7d
#helloworld2020
0 uses · 0 accounts / 7d
#HelloWorldLive
0 uses · 0 accounts / 7d
#helloworld2
0 uses · 0 accounts / 7d
#helloworldbci
0 uses · 0 accounts / 7d

Live pulse

measured · mastodon.social (Mastodon tag timeline) · fetched 2026-09-08 06:12 UTC

Everything below is measured over the latest 40 public posts (spanning ~228 hours).

Posting hours (UTC) — busiest: 04:00

00:0012:0023:00

Languages: English (39) · Finnish (1)

Avg boosts / post: 0.1

Top of the latest posts

What “helloworld” means

Wikipedia

A "Hello, world" program is usually a simple computer program that outputs a message similar to "Hello, world". The text may be printed out or displayed on a screen. A small piece of code in most general-purpose programming languages, this program is used to illustrate a language's basic syntax. Such a program is often the first written by a student of a new programming language, but it can also be used as a sanity check to ensure that the computer software intended to compile or run source cod

“Hello, world” on Wikipedia (CC BY-SA) →

#helloworld across platforms

every network with a public tag surface

Follow #helloworld 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.

X (Twitter) ↗Instagram ↗TikTok ↗Facebook ↗LinkedIn ↗YouTube ↗Threads ↗Bluesky ↗Mastodon ↗Reddit ↗Pinterest ↗Tumblr ↗

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/helloworld