#fy
The most viral posts using #fy across TikTok, Instagram, X, Facebook and Pinterest — ranked by real engagement tracked by ViralHunt.
We track 2087 posts using #fy across 5 networks, carrying 818.7M engagement between them — an average of 392.3K per post.
It is used most on TikTok: 1949 of the 2087 posts we hold, 93% of the total.
And TikTok is not just where the volume is: it is also where the tag performs best per post, averaging 416K.
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 #fy posts ALL NETWORKS
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Most viral #fy on TikTok
See all 1.9K TikTok posts and track new ones live.
Most viral #fy on Bluesky
See all 73 Bluesky posts and track new ones live.
Most viral #fy on Instagram
See all 44 Instagram posts and track new ones live.
Most viral #fy on Pinterest
See all 18 Pinterest posts and track new ones live.
Most viral #fy on X / Twitter
#fy in five questions
What is #fy and where is it used?
A hashtag with 2.1K posts tracked by ViralHunt across 5 networks, mostly on TikTok (1.9K posts). Those posts add up to 818.7M engagement, about 392.3K per post.
Where does #fy perform best?
On TikTok: 416K engagement per post on average, which is also where it is posted most.
When do people post with #fy?
Mostly on Thursdays, around 17:00 UTC: 42% of the 2.1K 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 #fy most?
noelgoescrazy (TikTok, 1159 posts), officialtiktokscience (TikTok, 153 posts), thinkexperiment (TikTok, 117 posts), youneszarou (TikTok, 67 posts), ncmegaphone.bsky.social (Bluesky, 12 posts), justarandomfan.bsky.social (Bluesky, 6 posts).
When people post with #fy
Hour of day and day of the week of the 2.1K dated posts carrying this tag (times in UTC). The busiest hour and day are marked.
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