#au
The most viral posts using #au across TikTok, Instagram, X, Facebook and Pinterest — ranked by real engagement tracked by ViralHunt.
We track 324 posts using #au across 4 networks, carrying 119K engagement between them — an average of 367 per post.
It is used most on Bluesky: 321 of the 324 posts we hold, 99% of the total.
And Bluesky is not just where the volume is: it is also where the tag performs best per post, averaging 132.
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 #au posts ALL NETWORKS
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Most viral #au on Bluesky
See all 321 Bluesky posts and track new ones live.
Most viral #au on TikTok
Most viral #au on Pinterest
Most viral #au on Mastodon
#au in five questions
What is #au and where is it used?
A hashtag with 324 posts tracked by ViralHunt across 4 networks, mostly on Bluesky (321 posts). Those posts add up to 119K engagement, about 367 per post.
Where does #au perform best?
On Bluesky: 132 engagement per post on average, which is also where it is posted most.
When do people post with #au?
Mostly on Mondays, around 17:00 UTC: 19% of the 324 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 #au most?
spicedcarot.bsky.social (Bluesky, 13 posts), xenias98.bsky.social (Bluesky, 11 posts), official-lb-art.bsky.social (Bluesky, 8 posts), noribug.bsky.social (Bluesky, 8 posts), vbluewolfy429_official (TikTok, 1 posts), thatsiena (Pinterest, 1 posts).
When people post with #au
Hour of day and day of the week of the 324 dated posts carrying this tag (times in UTC). The busiest hour and day are marked.
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