#sci
The most viral posts using #sci across TikTok, Instagram, X, Facebook and Pinterest — ranked by real engagement tracked by ViralHunt.
We track 363 posts using #sci across 6 networks, carrying 153.3K engagement between them — an average of 422 per post.
It is used most on Bluesky: 321 of the 363 posts we hold, 88% of the total.
Where it performs hardest per post, though, is Douyin, averaging 15K — 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 #sci posts ALL NETWORKS
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Most viral #sci on Bluesky
See all 321 Bluesky posts and track new ones live.
Most viral #sci on Instagram
See all 30 Instagram posts and track new ones live.
Most viral #sci on Douyin
See all 6 Douyin posts and track new ones live.
Most viral #sci on Pinterest
Most viral #sci on X / Twitter
Most viral #sci on Mastodon
#sci in five questions
What is #sci and where is it used?
A hashtag with 363 posts tracked by ViralHunt across 6 networks, mostly on Bluesky (321 posts). Those posts add up to 153.3K engagement, about 422 per post.
Where does #sci perform best?
On Douyin: 15K 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 #sci?
Mostly on Saturdays, around 17:00 UTC: 28% of the 363 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 #sci most?
jennifermbloom.bsky.social (Bluesky, 49 posts), neuropsychiatry_ (Instagram, 26 posts), marconi451.bsky.social (Bluesky, 15 posts), johnalogan.bsky.social (Bluesky, 13 posts), untidymusic.com (Bluesky, 12 posts), itscosmoknowledge (Instagram, 2 posts).
Which hashtags go with #sci?
Other tags with volume on the same networks: #booksky, #indieauthors, #scifi, #fantasy, #kindleunlimited, #art.
When people post with #sci
Hour of day and day of the week of the 363 dated posts carrying this tag (times in UTC). The busiest hour and day are marked.
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