How popular is #berlin2021?

#berlin2021 has no measured public activity on the open social web in the last 7 days. It is currently wide open.

What hashtags are related to #berlin2021?

Related hashtags include #BSidesBerlin2021.

How much does it cost to own #berlin2021?

#berlin2021 is available as a #name from $23.52 per year. You can claim it by card at https://hashtag.org/checkout/portal-name?name=berlin2021 or with tokens on hashtag.space at https://hashtag.space/#berlin2021.

#BERLIN2021

Name: #berlin2021 — a #name on hashtag.org
Brand: hashtag.org
Price: 23.52 USD
Availability: InStock

Live, measured metrics for the hashtag #BERLIN2021 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 #berlin2021

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 #berlin2021 — $23.52/yr→Buy on hashtag.space (web3)

card via hashtag.org · tokens via hashtag.space

Uses / 7 days

Mastodon

Accounts / 7 days

Mastodon

Day-by-day usage

measured · fosstodon.org (Mastodon public tags API) · fetched 2026-10-04 14:41 UTC

09-28

09-29

09-30

10-01

10-02

10-03

10-04

0 uses by 0 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 2026-10-04 14:41 UTC

#BSidesBerlin2021

0 uses · 0 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-10-04 14:41 UTC

Everything below is measured over the latest 15 public posts (spanning ~2881 hours).

Posting hours (UTC) — busiest: 20:00

00:0012:0023:00

Languages: German (15)

Avg boosts / post: 0

Used together with

#nowwatching ×15 #schönstenebensachederwelt ×15 #pokal ×15 #dfbpokal ×15 #finale ×12 #endspiel ×12 #bvbrbl ×12 #rbl ×12 #bvb ×12 #rasenballsportleipzig ×12 #borussiadortmund ×12 #leipzig ×4

What “berlin2021” means

Wikipedia

Berlin is the capital and largest city of Germany. With 3.7 million inhabitants, it has the highest population within its city limits of any city in the European Union (EU). The metropolis is also one of the states of Germany, being the third-smallest state in the country by area. Berlin is surrounded by the state of Brandenburg, bordering Brandenburg's capital Potsdam to the southwest. The urban area of Berlin has a population of 4.5 million, making it the second most populous in Germany after

“Berlin” on Wikipedia (CC BY-SA) →

#berlin2021 across platforms

every network with a public tag surface

Follow #berlin2021 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/berlin2021