#csu
The most viral posts using #csu across TikTok, Instagram, X, Facebook and Pinterest — ranked by real engagement tracked by ViralHunt.
We track 155 posts using #csu across 4 networks, carrying 13.2K engagement between them — an average of 85 per post.
It is used most on Bluesky: 145 of the 155 posts we hold, 94% of the total.
Where it performs hardest per post, though, is Mastodon, averaging 117 — 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 #csu posts ALL NETWORKS
Filter by network, track every new post, and get alerts when #csu starts trending.
Most viral #csu on Bluesky
See all 145 Bluesky posts and track new ones live.
Most viral #csu on Mastodon
See all 8 Mastodon posts and track new ones live.
Most viral #csu on Instagram
Most viral #csu on X / Twitter
#csu in five questions
What is #csu and where is it used?
A hashtag with 155 posts tracked by ViralHunt across 4 networks, mostly on Bluesky (145 posts). Those posts add up to 13.2K engagement, about 85 per post.
Where does #csu perform best?
On Mastodon: 117 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 #csu?
Mostly on Fridays, around 10:00 UTC: 19% of the 155 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 #csu most?
topnewsde.bsky.social (Bluesky, 99 posts), GuidoKuehn (Mastodon, 7 posts), saschaniedrig.wsocial.eu (Bluesky, 6 posts), ahaachja.bsky.social (Bluesky, 5 posts), neonnox.bsky.social (Bluesky, 3 posts), RestartThinking (Mastodon, 1 posts).
When people post with #csu
Hour of day and day of the week of the 155 dated posts carrying this tag (times in UTC). The busiest hour and day are marked.
Track #csu across every network
ViralHunt watches 13 networks live and shows you what's trending in your niche — before everyone reacts.
Try for free