sol (noun): The fifth step in the solfège scale of C (Ut), preceded by fa and followed by la. As a hashtag, #sol carries this topic across social platforms.

In the last 7 days, #sol was used 5 times by 5 accounts on the open social web, measured via fosstodon.org (Mastodon public tags API).

What hashtags are related to #sol?

Related hashtags include #solar, #SolarPunk, #solidaritat, #Solidarity, #solitude, #solarpower, #solaris, #solodev.

How much does it cost to own #sol?

#sol is available as a #name from $5,313.74 per year. You can claim it by card at https://hashtag.org/checkout/portal-name?name=sol or with tokens on hashtag.space at https://hashtag.space/#sol.

#sol

Name: #sol — a #name on hashtag.org
Brand: hashtag.org
Price: 5313.74 USD
Availability: InStock

Live, measured metrics for the hashtag #sol 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 #sol

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.

$5,313.74/ year · 3-character #name

Claim #sol — $5,313.74/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 2026-09-12 07:58 UTC

09-06

09-07

09-08

09-09

09-10

09-11

09-12

5 uses by 5 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 2026-09-12 07:58 UTC

#solar

167 uses · 123 accounts / 7d

#SolarPunk

136 uses · 105 accounts / 7d

#solidaritat

61 uses · 48 accounts / 7d

#Solidarity

84 uses · 51 accounts / 7d

#solitude

13 uses · 9 accounts / 7d

#solarpower

22 uses · 22 accounts / 7d

#solaris

8 uses · 8 accounts / 7d

#solodev

24 uses · 18 accounts / 7d

#solarenergy

26 uses · 25 accounts / 7d

#solo

17 uses · 9 accounts / 7d

#sol3

1 uses · 1 accounts / 7d

#solawi

10 uses · 8 accounts / 7d

Live pulse

measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-12 07:58 UTC

Everything below is measured over the latest 40 public posts (spanning ~723 hours).

Posting hours (UTC) — busiest: 19:00

00:0012:0023:00

Languages: Spanish (17) · English (16) · Portuguese (2) · French (2) · Russian (1) · German (1)

Avg boosts / post: 0.9

Used together with

#astronomia ×8 #luna ×7 #eclipse ×6 #openai ×5 #sun ×5 #ciencia ×4 #sunrise ×3 #hackernews ×3 #news ×3 #moon ×3 #humor ×3 #eclipsesolar ×3

What “sol” means

Wiktionary

sol/sɒl/

nounThe fifth step in the solfège scale of C (Ut), preceded by fa and followed by la.

Full entry on Wiktionary →

#sol across platforms

every network with a public tag surface

Follow #sol 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/sol