#underground
The most viral posts using #underground across TikTok, Instagram, X, Facebook and Pinterest — ranked by real engagement tracked by ViralHunt.
We track 362 posts using #underground across 8 networks, carrying 11.8M engagement between them — an average of 32.7K per post.
It is used most on Bluesky: 325 of the 362 posts we hold, 90% of the total.
Where it performs hardest per post, though, is TikTok, averaging 748.2K — so the tag is posted most in one place and lands best in another, which is exactly the difference worth knowing before choosing where to use it.
Ranking comes from the posts themselves rather than from how often the tag appears, and it is recalculated as new posts are collected. How we measure this →
Top #underground posts ALL NETWORKS
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Most viral #underground on Bluesky
See all 325 Bluesky posts and track new ones live.
Most viral #underground on TikTok
See all 15 TikTok posts and track new ones live.
Most viral #underground on Douyin
See all 12 Douyin posts and track new ones live.
Most viral #underground on Instagram
Most viral #underground on Pinterest
Most viral #underground on Facebook
Most viral #underground on Mastodon
Most viral #underground on Tumblr
#underground in five questions
What is #underground and where is it used?
A hashtag with 362 posts tracked by ViralHunt across 8 networks, mostly on Bluesky (325 posts). Those posts add up to 11.8M engagement, about 32.7K per post.
Where does #underground perform best?
On TikTok: 748.2K engagement per post on average, even though it is posted more on Bluesky. It is used in one place and works better in another.
When do people post with #underground?
Mostly on Sundays, around 00:00 UTC: 15% of the 356 dated posts fall in the three hours around that time. Posting when the tag is active is posting when someone is reading it.
Who uses #underground most?
notpirate.bsky.social (Bluesky, 115 posts), swubunker.bsky.social (Bluesky, 48 posts), sedjrowesker.bsky.social (Bluesky, 26 posts), collectorseriesdiy.bsky.social (Bluesky, 7 posts), dailymail (TikTok, 3 posts), tilscience (TikTok, 2 posts).
Which hashtags go with #underground?
Other tags with volume on the same networks: #music, #twitch, #newmusic, #soundcloud, #original, #notpirate.
When people post with #underground
Hour of day and day of the week of the 356 dated posts carrying this tag (times in UTC). The busiest hour and day are marked.
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