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back number staff engagement report

@backnumberstaff - 591K followers on X

Measured over 41 original posts from a 30-day window, last computed on October 9, 2026.

Engagement

Top quarter for its size
Per follower
0.346%
of 591K followers
Per impression
2.53%
81K views on a typical post
Reach
13.7%
of its followers see a post
Typical post
2.0K
interactions (median)
Saved
0.031%
25 bookmarks on a typical post
Posting rate
2.43/day
active 77% of days
Peak time
09:00 UTC
Sunday

A typical post picks up 2.0K interactions against 591K followers, an engagement rate of 0.346%. Measured over 41 original posts, its engagement rate beats 88% 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 81K times each, and 2.53% of those impressions turn into an interaction. That is about 13.7% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.4 posts a day over the last 30 days, with activity on roughly 77% of days. Most posts go out around 09:00 UTC, and Sunday is the busiest day of the week. Of the 41 posts sampled, 76% carry an image or video, 24% are part of a thread and 78% link out. The account's strongest tracked post pulled 14K interactions, about 6.9x its own typical post. Recurring topics include #backnumber, #backnumberアジアツアー, #oneroom.

Measured over 41 original posts from a 30-day window, last computed on October 9, 2026. Recurring tags: #backnumber, #backnumberアジアツアー, #oneroom.

Compared with accounts its own size

back number staff's engagement rate beats 88% 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 73% 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 0.346%, back number staff sits above the 50th percentile of the 205,374 accounts in this comparison. That places it in the above the median band, which runs 0.143% to 0.678%.

p100.004%
p250.024%
p50 (median)0.143%
p750.678%
p902.55%
p9982.4%
Engagement rate as a share of followers, across the 205,374 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 22,897 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 09:00 UTC, and Sunday 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: 09:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 111%Busiest hour: 09:00 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: Sunday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Sunday
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 video76% of posts+111%+108% to +115%34K
Outbound link78% of posts-41%-42% to -40%32K
Typical length--3%-3% to -2%54K
  • 76% 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.
  • 78% 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 170 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

  • Aug 21, 20266.9x their median

    視線(も) https://t.co/4jKlFCDt6Q

    13K869117152321K viewsView on X
  • Jun 28, 20266.8x their median

    “Grateful Yesterdays Tour 2026” in 熊本えがお健康スタジアム 5大スタジアムツアーファイナル熊本公演へお越しいただき、 ありがとうございました! 宮城から始まり、 静岡、大阪、神奈川、 そして熊本へ。 このツアーで出会えた方、遠くから応援してくださった方、支えてくださったすべてのみなさんへ、感謝の気持ちを込めて。 最後のダイジェストを少しだけ。 セットリストプレイリストも公開しましたので是非ライブで披露した楽曲をお楽しみください! 🎧https://t.co/tt7z2JmI8l Director : @takumisaitoh_ #backnumber #backnumberスタジアムツアー

    12K1.7K102140508K viewsView on X
  • Sep 25, 20264.5x their median

    視線(も) https://t.co/s9neza2WMj

    8.6K5267270204K viewsView on X
  • Aug 8, 20264.3x their median

    TikTok LIVE Premiere 清水依与吏(back number) -Acoustic Live- ご覧いただきありがとうございました✨ #backnumber #TikTokLIVEPremiere https://t.co/75wo7mgExJ

    7.7K763290186239K viewsView on X
  • Aug 23, 20263.8x their median

    “Grateful Yesterdays Tour 2026” 【TAIPEI】Taipei Arena DAY2 THANK YOU TAIPEI !! photo by @H_and_A #backnumberアジアツアー #backnumber https://t.co/mBuVGaXz1b

    6.8K727109124187K viewsView on X
  • Sep 4, 20263.8x their median

    back number fanclub tour 『one room party vol.8』 開催決定🎉 🏁2027年9月からスタート! 日程や会場、チケットの詳細は後日オフィシャルサイトにて発表します! https://t.co/4v7zYQMhLQ お楽しみに🔑 #oneroompartyvol8 #backnumber @oneroomparty https://t.co/ReXtRvc86n

    6.5K96027242363K viewsView on X
  • Aug 4, 20263.6x their median

    視線(も) https://t.co/6hhpTaKSi3

    6.8K41810050176K viewsView on X
  • Aug 22, 20263.5x their median

    視線(も) https://t.co/fD4TXHwHIH

    6.6K39740798K viewsView on X
  • Aug 24, 20263.2x their median

    “Grateful Yesterdays Tour 2026” 【TAIPEI】Taipei Arena 感謝大家🙏 讚👍👍👍 Director : @takumisaitoh_ #backnumberアジアツアー #backnumber https://t.co/ymUbpXG5pB

    5.6K7936573160K viewsView on X
  • Aug 3, 20263.2x their median

    TikTok LIVE Premiere 清水依与吏(back number) -Acoustic Live- 8/8(土)18:30〜(予定)開催決定! 📡 ぜひご覧ください👀 🔻back number TikTok公式アカウント https://t.co/1yeB8ly5oP #backnumber #TikTokLIVEPremiere https://t.co/uVhpj55c8D

    5.3K831153263421K 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

#backnumber#backnumberアジアツアー#oneroom#backnumber亞洲巡演#backnumber아시아투어

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 2.0K interactions against 591K followers, an engagement rate of 0.346%. Measured over 41 original posts, its engagement rate beats 88% 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 81K times each, and 2.53% of those impressions turn into an interaction. That is about 13.7% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.4 posts a day over the last 30 days, with activity on roughly 77% of days. Most posts go out around 09:00 UTC, and Sunday is the busiest day of the week. Of the 41 posts sampled, 76% carry an image or video, 24% are part of a thread and 78% link out. The account's strongest tracked post pulled 14K interactions, about 6.9x its own typical post. Recurring topics include #backnumber, #backnumberアジアツアー, #oneroom.

What is back number staff's engagement rate on X?
back number staff (@backnumberstaff) has an engagement rate of 0.346%, based on the median interactions across 41 original posts from the last 30 days against 591,203 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.346%, back number staff sits above the 50th percentile of the 205,374 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 @backnumberstaff have real engagement?
Its engagement rate beats 88% of the tracked X accounts closest to it in follower count (20,444 accounts), which puts it in the top quarter 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 @backnumberstaff post?
Most posts go out around 09:00 UTC, and Sunday is its busiest day, at roughly 2.43 posts per day across the measured window.

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