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BT21 engagement report

@BT21_ - 13M followers on X

Measured over 10 original posts from a 30-day window, last computed on August 22, 2026.

Engagement

Top 10% for its size
Per follower
0.101%
of 13M followers
Per impression
5.32%
240K views on a typical post
Reach
1.90%
of its followers see a post
Typical post
13K
interactions (median)
Saved
0.134%
322 bookmarks on a typical post
Posting rate
0.4/day
active 30% of days
Peak time
07:00 UTC
Tuesday

A typical post picks up 13K interactions against 13M followers, an engagement rate of 0.101%. Measured over 10 original posts, its engagement rate beats 91% of 982 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 240K times each, and 5.32% of those impressions turn into an interaction. That is about 1.90% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.4 posts a day over the last 30 days, though only 30% of days saw any activity at all. Most posts go out around 07:00 UTC, and Tuesday is the busiest day of the week. Of the 10 posts sampled, 100% carry an image or video and 20% link out. The account's strongest tracked post pulled 36K interactions, about 2.8x its own typical post. Recurring topics include #bt21, #chimmy, #rj.

Measured over 10 original posts from a 30-day window, last computed on August 22, 2026. Recurring tags: #bt21, #chimmy, #rj.

Compared with accounts its own size

BT21's engagement rate beats 91% of the tracked X accounts closest to it in follower count (982 accounts, accounts of similar size (decile 10 of 10)). A percentile is spread evenly by construction, so 50 really is the middle of that group and 90 really is its top tenth.

On engagement per impression rather than per follower it beats 97% of the same group. When those two numbers disagree, the gap is about how far its posts travel rather than how people react to them.

Where this sits in the catalog

At 0.101%, BT21 sits above the 50th percentile of the 9,668 accounts in this comparison. That places it in the above the median band, which runs 0.046% to 0.318%.

p100.001%
p250.006%
p50 (median)0.046%
p750.318%
p902.67%
p99366.2%
Engagement rate as a share of followers, across the 9,668 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 457,772 times apart and a linear axis would flatten everything below the median into a single point.
Show the percentile table
Engagement rate percentiles
PercentileEngagement rate
10th percentile0.001%
25th percentile0.006%
50th percentile0.046%
75th percentile0.318%
90th percentile2.67%
99th percentile366.2%

This ruler is the whole measured catalog, not a size-matched group: it shows where the raw rate falls across every account we can measure, all of which are large. For a like-for-like comparison, read the size-band percentile above instead. See how the bands are built

Posting timing

This account posts most often around 07:00 UTC, and Tuesday is its busiest day of the week. The bars below are the catalog-wide pattern, with this account's own busiest slot marked. They do not show how this account performs at each hour: we keep one aggregate per account, not one per hour, so that measurement does not exist in our data.

Engagement by hour posted, UTCTwenty-four bars, one per UTC hour. Each bar shows how posts published in that hour compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest hour: 07:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 97%Busiest hour: 07:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC0%14K
01:00 UTC+3%15K
02:00 UTC-1%14K
03:00 UTC-2%15K
04:00 UTC-5%12K
05:00 UTC-4%12K
06:00 UTC-7%13K
07:00 UTC-6%14K
08:00 UTC-7%16K
09:00 UTC-2%19K
10:00 UTC-2%20K
11:00 UTC-2%22K
12:00 UTC-1%24K
13:00 UTC+1%27K
14:00 UTC-2%28K
15:00 UTC-1%30K
16:00 UTC-1%29K
17:00 UTC-1%28K
18:00 UTC+1%25K
19:00 UTC0%23K
20:00 UTC0%21K
21:00 UTC+1%19K
22:00 UTC+1%16K
23:00 UTC+1%15K
Engagement by day of weekSeven bars, one per weekday, Sunday first. Each bar shows how posts published on that day compare with their own authors' median engagement. Bars above the centre line ran higher than the median, bars below ran lower. A marker flags Busiest day: Tuesday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 97%Busiest day: Tuesday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+9%56K
Monday+8%72K
Tuesday+1%93K
Wednesday-4%77K
Thursday-3%70K
Friday-6%71K
Saturday+2%62K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Formats this account uses

Its own posting mix on the left, and what each of those formats does across every account we track on the right. Only formats where the effect clears our publish test appear here, so an empty row is a format we could not measure rather than one that does nothing.

This account's posting mix compared with catalog-wide effects
FormatThis accountCatalog effect95% intervalAccounts behind it
Image or video100% of posts+79%+73% to +84%5.7K
Outbound link20% of posts-49%-50% to -47%6.0K
Typical length--7%-8% to -5%8.9K
  • 100% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 79% above the same accounts' other posts.
  • 20% of its posts carry a link off X. Across the catalog, posts with an outbound link run 49% below the same accounts' other posts.
  • Its average post runs 159 characters, which falls in the 80 - 180 characters band. Across the catalog, posts of 80 to 180 characters run 7% below the same accounts' other posts.

These are catalog-wide differences applied to this account's own posting mix, not a measurement of how each format performs for this account specifically. We keep one median per account, not one per format per account, so the second thing is not something this data can tell you.

Best tweets

  • Jul 9, 20262.8x their median

    With love, for you VAN ๐Ÿ’Œ๐ŸŽ VANใธใ€ๆ„›ใ‚’่พผใ‚ใฆ๐Ÿ’Œ๐ŸŽ ์‚ฌ๋ž‘์„ ๋‹ด์•„, VAN์—๊ฒŒ ๐Ÿ’Œ๐ŸŽ #BT21 #KOYA #RJ #SHOOKY #MANG #CHIMMY #TATA #COOKY #VAN https://t.co/rT71qbuTeW

    27K8.1K159254487K viewsView on X
  • Jun 4, 20262.7x their median

    Knock knock! Surprise at the door! ๐Ÿšช๐ŸŽ ใ‚ณใƒณใ‚ณใƒณ๏ผๆ‰‰ใฎๅ‘ใ“ใ†ๅดใซใƒ—ใƒฌใ‚ผใƒณใƒˆใŒใ‚ตใƒ—ใƒฉใ‚คใ‚บๅˆฐ็€๏ผ๐Ÿšช๐ŸŽ ๋˜‘๋˜‘! ๋ฌธ ์•ž์— ๊นœ์ง ์„ ๋ฌผ ๋„์ฐฉ! ๐Ÿšช๐ŸŽ #BT21 #FrontDoor https://t.co/7aev3BQH38

    28K6.1K72392727K viewsView on X
  • May 14, 20262.2x their median

    SHOOKYโ€™s happiness is all that matters! ๐Ÿ˜๐ŸคŽ SHOOKYใŒใƒใƒƒใƒ”ใƒผใชใ‚‰ๅ…จ้ƒจใ‚ชใƒผใ‚ฑใƒผ๏ผ๐Ÿ˜๐ŸคŽ SHOOKY๋งŒ ํ–‰๋ณตํ•˜๋ฉด ๋์–ด! ๐Ÿ˜๐ŸคŽ #BT21 #SHOOKY #Prankster https://t.co/XVd7Mr8Vzr

    23K5.3K49199314K viewsView on X
  • Aug 11, 20262.0x their median

    Aaaah~~~~~~~~~~ ๐Ÿ’จ๐Ÿคฉ ใ‚"ใใใ‚ใใใ€œใ€œใ€œใ€œใ€œใ€œใ€œใ€œ ๐Ÿ’จ๐Ÿคฉ ์•„ใ…ใ…ใ…~~~~~~~~~~ ๐Ÿ’จ๐Ÿคฉ #BT21 #SHOOKY #TATA https://t.co/9MefM2dVTr

    21K4.6K62195360K viewsView on X
  • May 26, 20261.9x their median

    Too cute to run past COOKY... ๐Ÿ’˜ COOKYใŒใ‚ใกใ‚ƒใ‹ใ‚ใ„ใใฆ่ฟฝใ„ๆŠœใ‹ใ›ใชใ„...๐Ÿ’˜ COOKY๊ฐ€ ๋„ˆ๋ฌด ๊ท€์—ฌ์›Œ์„œ ๋ชป ์ง€๋‚˜์น˜๊ฒ ์–ด... ๐Ÿ’˜ #BT21 #TATA #COOKY #Running https://t.co/IQyImh9UCh

    20K4.9K60155225K viewsView on X
  • May 5, 20261.9x their median

    Wait, is this real? ...๐Ÿ‘€ ใ‚ใ‚Œใฏ....ใƒžใ‚ธ๏ผŸ...๐Ÿ‘€ ์ž ๊น, ์ด๊ฑฐ ์ง„์งœ์•ผ? ...๐Ÿ‘€ #BT21 #TATA #CHIMMY #Sunglass https://t.co/nsBXJ3gyDv

    19K4.3K66149621K viewsView on X
  • Jul 21, 20261.6x their median

    Kept eatingโ€ฆ and accidentally made some art! ๐Ÿ˜†๐Ÿ‰ ้ฃŸในใฆใŸใ‚‰...ใ„ใคใฎ้–“ใซใ‹ไฝœๅ“ๅฎŒๆˆ๏ผ๐Ÿ˜†๐Ÿ‰ ๋จน๋‹ค ๋ณด๋‹ˆโ€ฆ ์–ด๋А์ƒˆ ์ž‘ํ’ˆ์ด ์™„์„ฑ! ๐Ÿ˜†๐Ÿ‰ #BT21 #SHOOKY #TATA #COOKY #Watermelon https://t.co/QJy3qgdg37

    17K3.9K4594387K viewsView on X
  • Jul 16, 20261.6x their median

    Now that's teamwork! ๐Ÿ˜Žโญ๏ธ ๆœ€้ซ˜ใฎใƒใƒผใƒ ใƒ—ใƒฌใ‚ค๏ผ๐Ÿ˜Žโญ๏ธ ์ตœ๊ณ ์˜ ํŒ€ํ”Œ๋ ˆ์ด! ๐Ÿ˜Žโญ๏ธ #BT21 #KOYA #RJ #SHOOKY #MANG #CHIMMY #TATA #COOKY #VAN https://t.co/hqCO6iedOs

    17K3.9K4999303K viewsView on X
  • Apr 23, 20261.5x their median

    COOKY beats the flashโšก๏ธ๐Ÿ“ธ ใƒ•ใƒฉใƒƒใ‚ทใƒฅใซใ‚‚่ฒ ใ‘ใชใ„COOKYโšก๏ธ๐Ÿ“ธ ํ”Œ๋ž˜์‹œ๋„ ์ด๊ฒจ๋ฒ„๋ฆฐ COOKYโšก๏ธ๐Ÿ“ธ #BT21 #COOKY #Camera https://t.co/FhBDzGY2BN

    16K3.1K39127715K viewsView on X
  • Jul 14, 20261.5x their median

    Zzzโ€ฆ It feels like someone quietly stopped by ๐Ÿ‘€๐ŸŒƒ Zzzโ€ฆ ่ชฐใ‹ใŒใใฃใจ้€šใ‚Š้ŽใŽใŸใ‚ˆใ†ใช ๐Ÿ‘€๐ŸŒƒ Zzzโ€ฆ ๋ˆ„๊ตฐ๊ฐ€ ์‚ด๋ฉฐ์‹œ ๋‹ค๋…€๊ฐ„ ๊ฒƒ ๊ฐ™์•„ ๐Ÿ‘€๐ŸŒƒ #BT21 #KOYA #RJ #SHOOKY #MANG #CHIMMY #TATA #COOKY #VAN https://t.co/MbjzWypl2W

    16K3.4K43169492K viewsView on X

Ranked by total interactions across everything we have tracked for this account, which is a longer history than the 30-day window the rates above use. The multiple compares each post to this account's own median.

Recurring topics

#bt21#chimmy#rj#shooky#cooky

The most frequent hashtags in the sampled posts. They describe what this account writes about; they are not a performance signal, and the catalog-wide breakdown on the hub shows how little hashtag count moves.

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Reading these numbers

A typical post picks up 13K interactions against 13M followers, an engagement rate of 0.101%. Measured over 10 original posts, its engagement rate beats 91% of 982 tracked accounts of a similar size. Comparing inside a size band matters here: engagement rate falls as accounts grow, so a raw rate would mostly just re-measure the follower count. Posts are seen about 240K times each, and 5.32% of those impressions turn into an interaction. That is about 1.90% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.4 posts a day over the last 30 days, though only 30% of days saw any activity at all. Most posts go out around 07:00 UTC, and Tuesday is the busiest day of the week. Of the 10 posts sampled, 100% carry an image or video and 20% link out. The account's strongest tracked post pulled 36K interactions, about 2.8x its own typical post. Recurring topics include #bt21, #chimmy, #rj.

What is BT21's engagement rate on X?
BT21 (@BT21_) has an engagement rate of 0.101%, based on the median interactions across 10 original posts from the last 30 days against 12,616,826 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.101%, BT21 sits above the 50th percentile of the 9,668 accounts in this comparison. Those comparison accounts are all large ones, because our scanning cadence is weighted towards big accounts, so this is a ranking among peers of similar scale rather than a ranking across X.
Does @BT21_ have real engagement?
Its engagement rate beats 91% of the tracked X accounts closest to it in follower count (982 accounts), which puts it in the top 10% for its size group. Ranking inside a size band matters because engagement rate falls as accounts grow, so a raw rate would mostly re-measure the follower count. It is a starting point for a look at follower quality, not a verdict on it.
When does @BT21_ post?
Most posts go out around 07:00 UTC, and Tuesday is its busiest day, at roughly 0.4 posts per day across the measured window.

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