#sf
The most viral posts using #sf across TikTok, Instagram, X, Facebook and Pinterest — ranked by real engagement tracked by ViralHunt.
We track 313 posts using #sf across 5 networks, carrying 598.1K engagement between them — an average of 1.9K per post.
It is used most on Bluesky: 300 of the 313 posts we hold, 96% of the total.
Where it performs hardest per post, though, is TikTok, averaging 24K — 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 #sf posts ALL NETWORKS
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Most viral #sf on Bluesky
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Most viral #sf on Mastodon
Most viral #sf on TikTok
Most viral #sf on X / Twitter
Most viral #sf on Instagram
#sf in five questions
What is #sf and where is it used?
A hashtag with 313 posts tracked by ViralHunt across 5 networks, mostly on Bluesky (300 posts). Those posts add up to 598.1K engagement, about 1.9K per post.
Where does #sf perform best?
On TikTok: 24K 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 #sf?
Mostly on Wednesdays, around 09:00 UTC: 24% of the 311 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 #sf most?
sfnews.bsky.social (Bluesky, 26 posts), mlb.boxscore.email (Bluesky, 24 posts), boxscore.email (Bluesky, 24 posts), jrizzo27.bsky.social (Bluesky, 12 posts), jonlord (Mastodon, 3 posts), rdm (Mastodon, 1 posts).
Which hashtags go with #sf?
Other tags with volume on the same networks: #sanfrancisco, #mlb, #giants, #sfgiants, #photography, #streetphotography.
When people post with #sf
Hour of day and day of the week of the 311 dated posts carrying this tag (times in UTC). The busiest hour and day are marked.
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