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超特急 OFFICIAL engagement report

@sd_bt - 377K followers on X

Measured over 44 original posts from a 30-day window, last computed on October 10, 2026.

Engagement

Top 10% for its size
Per follower
4.66%
of 377K followers
Per impression
5.99%
285K views on a typical post
Reach
77.7%
of its followers see a post
Typical post
17K
interactions (median)
Saved
0.123%
350 bookmarks on a typical post
Posting rate
2.6/day
active 40% of days
Peak time
08:00 UTC
Friday

A typical post picks up 17K interactions against 377K followers, an engagement rate of 4.66%. Measured over 44 original posts, its engagement rate beats 100% of 20,444 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 285K times each, and 5.99% of those impressions turn into an interaction. That is about 75.5% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.6 posts a day over the last 30 days, though only 40% of days saw any activity at all. Most posts go out around 08:00 UTC, and Friday is the busiest day of the week. Of the 44 posts sampled, 70% carry an image or video and 95% link out. The account's strongest tracked post pulled 107K interactions, about 6.3x its own typical post. Recurring topics include #超特急, #ebidan, #超特急_エトランスフィーバー.

Measured over 44 original posts from a 30-day window, last computed on October 10, 2026. Recurring tags: #超特急, #ebidan, #超特急_エトランスフィーバー.

Compared with accounts its own size

超特急 OFFICIAL's engagement rate beats 100% of the tracked X accounts closest to it in follower count (20,444 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 93% 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 4.66%, 超特急 OFFICIAL sits above the 90th percentile of the 205,261 accounts in this comparison. That places it in the top 10% band, which runs 2.55% to 82.4%.

p100.004%
p250.024%
p50 (median)0.143%
p750.678%
p902.55%
p9982.4%
Engagement rate as a share of followers, across the 205,261 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 22,894 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 percentile0.004%
25th percentile0.024%
50th percentile0.143%
75th percentile0.678%
90th percentile2.55%
99th percentile82.4%

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 08:00 UTC, and Friday 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: 08:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 111%Busiest hour: 08:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%89K
01:00 UTC-2%90K
02:00 UTC-3%88K
03:00 UTC-4%94K
04:00 UTC-5%76K
05:00 UTC-4%75K
06:00 UTC-5%86K
07:00 UTC-5%93K
08:00 UTC-4%108K
09:00 UTC-4%124K
10:00 UTC-3%129K
11:00 UTC-3%141K
12:00 UTC-3%154K
13:00 UTC-3%167K
14:00 UTC-4%173K
15:00 UTC-2%176K
16:00 UTC-3%171K
17:00 UTC-3%159K
18:00 UTC-2%149K
19:00 UTC-2%141K
20:00 UTC-1%131K
21:00 UTC0%116K
22:00 UTC-2%100K
23:00 UTC-1%90K
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: Friday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Friday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+5%393K
Monday+1%483K
Tuesday-2%520K
Wednesday-3%472K
Thursday-2%430K
Friday-3%447K
Saturday+2%393K
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 video70% of posts+111%+108% to +115%34K
Outbound link95% of posts-41%-42% to -40%32K
Typical length--3%-3% to -2%54K
  • 70% of this account's sampled posts carry an image or video. Across the catalog, posts with an image or video run 111% above the same accounts' other posts.
  • 95% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts, so a large share of this account's output sits in the weakest bucket we measure.
  • Its average post runs 143 characters, which falls in the 80 - 180 characters band. Across the catalog, posts of 80 to 180 characters run 3% 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

  • Sep 6, 20266.3x their median

    【ご報告】 超特急リョウガ 活動再開に関するご報告 https://t.co/0tZO04lpkB リョウガの休養期間中、温かいご理解とご支援を賜りました皆様、ならびに多くの励ましのお言葉をお寄せくださった皆様に、改めまして心より御礼申し上げます。 #超特急

    82K16K9848.4K6.7M viewsView on X
  • Sep 9, 20262.8x their median

    ㊗️🎉登録者30万人突破!!!!!!!!!🎉㊗️ #超特急 のYouTubeサブチャンネル「#超チューバー」の チャンネル登録者数が30万人を突破しました!! いつもたくさんのご視聴・応援ありがとうございます✨ これからも「超チューバー」をよろしくお願いします! ▼「超チューバー」 https://t.co/2AatsRpPK1 https://t.co/X28a3n2aCP

    41K5.2K116920761K viewsView on X
  • Sep 30, 20262.6x their median

    // 12月16日(水) 超特急24枚目SG 『エトランス・フィーバー』発売決定✨ \\ ▼特設サイトオープン! https://t.co/W8EOenvGrN また、10月12日(月)「エトランス・フィーバー」デジタルリリース決定! デジタルキャンペーンも開催!🎁 ▼キャンペーンの詳細はこちら! https://t.co/iKAYG3uS8g さらに、本日よりOutro ver.の配信がスタート! ぜひチェックしてください✨ #エトランスフィーバー #超特急_エトランスフィーバー #超特急

    33K7.8K754.4K2.1M viewsView on X
  • Sep 14, 20262.4x their median

    ★☆お知らせ☆★ #超特急 店頭販売くじ🎯の発売が決定!✨ 詳細は後日発表いたしますので、お楽しみに👀 ▼特設サイト https://t.co/jo1QOdP7sp  #超特急くじ #bullettrain_kuji https://t.co/FDJREwNJfU

    34K5.3K452.2K3.4M viewsView on X
  • Sep 7, 20262.3x their median

    \ ありがとうございました! / TBS系『CDTVライブ!ライブ!』 #EBiDAN 選抜メンバーがおかわりで『Yes! 東京』をフルサイズでパフォーマンス!✨ #超特急 からはカイ・ユーキ・タカシ・シューヤが参加しました! ご覧いただきありがとうございました! @TBSCDTV #CDTVとEBiDANでYes東京🗼 #CDTVライブライブ

    35K3.4K163261.2M viewsView on X
  • Sep 14, 20262.3x their median

    🎂HAPPY BIRTHDAY🎂 本日9月15日は12号車 #マサヒロ の誕生日🎉 引き続き応援よろしくお願いいたします!✨ #HAPPY_MASAHIRO_DAY https://t.co/SZjT1HIlki

    31K5.4K1871.9K893K viewsView on X
  • Oct 9, 20262.1x their median

    ★☆お知らせ☆★ 10月16日(金) 21:00〜放送!✨ テレビ朝日系『ミュージックステーション』に #EBiDAN 選抜メンバーで出演決定! #超特急 からはカイ/ユーキ/タカシ/シューヤ/マサヒロが参加いたします! 『Yes! 東京』をパフォーマンスいたしますので、ぜひご覧ください👀   ▼番組HP https://t.co/Vw0FBmbdkE @Mst_com #Mステ

    29K4.9K481.7K604K viewsView on X
  • Sep 1, 20261.9x their median

    【VIDEO 更新!】 #しおざきだいち さんと #しおざきわんだーらんど 🛟 🔗https://t.co/2jivOOibo5 @milk_info #MILK #ユーキ #タカシ #超特急 https://t.co/5Eymf8cewU

    29K3.7K18592619K viewsView on X
  • Aug 29, 20261.9x their median

    \#超チューバー 更新しました!/ 【目指せエビライ制覇🔥】-ハル-必勝おじさんは本当に必勝なのか!?検証してみた😂 https://t.co/MrBdTca0Pv ✔️チャンネル登録はコチラ https://t.co/VPu6EqLNw2 #Yes_EBiDAN15th  #エビライ2026 #EBiDAN #超特急 https://t.co/8PxXU3n8HF

    26K4.0K101.6K978K viewsView on X
  • Sep 14, 20261.6x their median

    ⏰本日25:30〜放送!⏰ 小笠原海と船津稜雅によるラジオ番組 『稜海しました!超特急QR』放送!✨ ぜひチェックしてください👀 ▼『QloveR』ではアフタートークも配信! https://t.co/m00hqGK2bi #稜海しました! https://t.co/t0KxfCSAd3

    23K3.0K1021.5K626K 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

#超特急#ebidan#超特急_エトランスフィーバー#エトランスフィーバー#タカシ

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 17K interactions against 377K followers, an engagement rate of 4.66%. Measured over 44 original posts, its engagement rate beats 100% of 20,444 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 285K times each, and 5.99% of those impressions turn into an interaction. That is about 75.5% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.6 posts a day over the last 30 days, though only 40% of days saw any activity at all. Most posts go out around 08:00 UTC, and Friday is the busiest day of the week. Of the 44 posts sampled, 70% carry an image or video and 95% link out. The account's strongest tracked post pulled 107K interactions, about 6.3x its own typical post. Recurring topics include #超特急, #ebidan, #超特急_エトランスフィーバー.

What is 超特急 OFFICIAL's engagement rate on X?
超特急 OFFICIAL (@sd_bt) has an engagement rate of 4.66%, based on the median interactions across 44 original posts from the last 30 days against 377,019 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 4.66%, 超特急 OFFICIAL sits above the 90th percentile of the 205,261 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 @sd_bt have real engagement?
Its engagement rate beats 100% of the tracked X accounts closest to it in follower count (20,444 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 @sd_bt post?
Most posts go out around 08:00 UTC, and Friday is its busiest day, at roughly 2.6 posts per day across the measured window.

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