#java21

Live, measured metrics for the hashtag #java21 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 #java21

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.

$520.70/ year · 6-character #name
Claim #java21 — $520.70/yr→
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card via hashtag.org · tokens via hashtag.space
1
Uses / 7 days
Mastodon
1
Accounts / 7 days
Mastodon
40
Recent posts
Mastodon
~0/hr
Recent pace
Mastodon · last 40
0
Avg reactions / post
Mastodon · last 40

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-07-27 10:03 UTC
1
07-21
0
07-22
0
07-23
0
07-24
0
07-25
0
07-26
0
07-27

1 uses by 1 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.

Related hashtags

measured · fosstodon.org (Mastodon public search API) · fetched 2026-07-27 10:03 UTC
#java21certification
1 uses · 1 accounts / 7d
#java21lts
0 uses · 0 accounts / 7d
#java_21
0 uses · 0 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-07-27 10:03 UTC

Everything below is measured over the latest 40 public posts (spanning ~5113 hours).

Posting hours (UTC) — busiest: 23:00

00:0012:0023:00

Languages: English (39) · Russian (1)

Avg boosts / post: 0.3

Top of the latest posts

  • 📬 Stay tuned:If you don’t want to miss the upcoming parts of this Java 21 Certification series Read more 👉 https://lttr.ai/AqKqz #java21 #Java21Certification

    Thiago Bomfim@[email protected]♥ 0↻ 02026-07-21 23:14 UTCView post →

  • My previous certification was for Java 8, and it took me about two months to prepare. For Java 21 it was very different. Read more 👉 https://lttr.ai/AqKqq #java21 #javaCertification #certification

    Thiago Bomfim@[email protected]♥ 0↻ 02026-07-10 23:18 UTCView post →

  • To make things practical, we’ll analyze a question in the style of the certification exam. Read more 👉 https://lttr.ai/AqKqV #java21 #Java21Certification

    Thiago Bomfim@[email protected]♥ 0↻ 02026-06-20 23:12 UTCView post →

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/java21