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いとうせいこう engagement report

@seikoito - 405K followers on X

Measured over 18 original posts from a 30-day window, last computed on September 27, 2026.

Engagement

Top quarter for its size
Per follower
0.255%
of 405K followers
Per impression
0.659%
157K views on a typical post
Reach
38.7%
of its followers see a post
Typical post
1.0K
interactions (median)
Saved
0.024%
38 bookmarks on a typical post
Posting rate
3.8/day
active 57% of days
Peak time
14:00 UTC
Thursday

A typical post picks up 1.0K interactions against 405K followers, an engagement rate of 0.255%. Measured over 18 original posts, its engagement rate beats 85% 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 157K times each, and 0.659% of those impressions turn into an interaction. That is about 38.8% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 3.8 posts a day over the last 30 days, with activity on roughly 57% of days. Most posts go out around 14:00 UTC, and Thursday is the busiest day of the week. Of the 18 posts sampled, 39% carry an image or video and 67% link out. The account's strongest tracked post pulled 56K interactions, about 54x its own typical post. Recurring topics include #47news, #mdl, #東奥日報.

Measured over 18 original posts from a 30-day window, last computed on September 27, 2026. Recurring tags: #47news, #mdl, #東奥日報.

Compared with accounts its own size

いとうせいこう's engagement rate beats 85% 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 37% 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 0.255%, いとうせいこう 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 14:00 UTC, and Thursday 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: 14:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 111%Busiest hour: 14:00 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: Thursday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Thursday
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 video39% of posts+111%+108% to +115%34K
Outbound link67% of posts-41%-42% to -40%32K
Typical length--3%-3% to -2%54K
  • 39% 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.
  • 67% 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 146 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 29, 202654x their median

    ずっと作りたかった「江戸時代の経路検索」ができました!! 徒歩・馬・早駕籠・継飛脚の4つから移動手段を選ぶと、ルートと概略日数を表示。 たとえば江戸から京まで、東海道経由で14日・中山道経由で16日と計算されます🚶 https://t.co/UPTR93YG7D https://t.co/loHLV7ZSYD

    41K14K2091.0K2.2M viewsView on X
  • Sep 5, 202640x their median

    塚本晋也:「戦争を始めた人たち、戦争を決めた人たちは、戦争に行かない。だから、自分たちは戦争に毒されずに済む。一方で、戦争に行った人たちは毒され、その家系がずっと毒されていく。そう考えると、戦場では加害者と被害者が生まれますが、本当の加害者は、戦争を決めた人たちなのではないかと思います」 https://t.co/VDHflnDAgZ

    30K11K83186778K viewsView on X
  • Aug 28, 202614x their median

    21日夜、執筆中身体の違和感強く、念の為と訪れた地元医院からすぐ大病院へ回されて循環器の疾患と診断。10分後には心臓のカテーテル手術を受けておりました。 術後の数値は良好で現在自宅療養中。リハビリしながら全快目指します。 御心配くださった皆様、報告遅くなりごめんなさい。ひとまずご挨拶。

    13K1.6K26690696K viewsView on X
  • Aug 26, 202613x their median

    「私が死んでも…」高市政権が見捨てても赤根智子・ICC所長は屈しない《茂木外相は赤根所長と面会拒否、官房副長官が吹聴する言い訳》 https://t.co/O5knzDXL6z #週刊文春

    9.4K3.5K228198417K viewsView on X
  • Sep 23, 202613x their median

    【速報】中国、高市氏の旧敵国条項削除要求に反対 https://t.co/2YF3J8jAaF

    8.5K2.6K7511.2K3.9M viewsView on X
  • Aug 27, 202610x their median

    沖縄県知事選でも、高市さんの時と同じように、特定候補を大量に称賛する動画や、相手陣営を攻撃する動画がネット上に大量に流れているようですね。 こうした手法が選挙を歪め、民主主義を壊しかねないことは、もう十分わかっているはずです。 ところが、規制しない。 できないのではなく、やらない。 なぜなら、それによって利益を得る側が、規制する側でもあるから。 私は、このままなら政治が自ら厳しい規制をすることは、まず期待できないと思っています。 だからこそ、有権者の側が賢くならなければならない。 選挙になると突然あふれ出す候補者称賛の動画。 同じような論調で繰り返される相手候補への攻撃。 異様な数の「みんなが支持している」という空気。 それを見たら、一度疑う。 「これは本当に自然に生まれた世論なのか?」 「誰かが作った“世論らしきもの”ではないのか?」 ネットでたくさん見る意見と、国民の多数意見は同じではない。 これからの選挙では、この当たり前のことを忘れないことが、民主主義を守るためにますます重要になると思います。

    7.0K3.2K1336870K viewsView on X
  • Sep 24, 20265.4x their median

    これ例の福岡県議会のバカ騒ぎの動画ね 税金で海外行ってコレ 私腹立つんですけど https://t.co/S36iqSuNa6

    3.7K1.7K94122194K viewsView on X
  • Sep 9, 20262.8x their median

    PFAS汚染源「答え差し控える」 政府、防衛省ともに説明避ける https://t.co/3vqwen8Z4r

    1.6K1.1K0263459K viewsView on X
  • Sep 25, 20262.0x their median

    高市首相、ICC赤根所長への制裁撤回を求めたか明らかにせず 日米首脳会談 https://t.co/fcvJtgVRDl 東京新聞デジタル

    1.0K73793161120K viewsView on X
  • Sep 8, 20262.0x their median

    スティーヴィー・ワンダーはアルバム『Songs in the Key of Life』の50周年を記念したツアーの開催を発表。このツアーでは、この象徴的なアルバム全曲を演奏します。ツアーは10月13日に英国で幕を開け、欧州・米国を巡る https://t.co/nvaJGRmWPk

    1.5K38210131207K 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

#47news#mdl#東奥日報#現代ビジネス

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 1.0K interactions against 405K followers, an engagement rate of 0.255%. Measured over 18 original posts, its engagement rate beats 85% 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 157K times each, and 0.659% of those impressions turn into an interaction. That is about 38.8% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 3.8 posts a day over the last 30 days, with activity on roughly 57% of days. Most posts go out around 14:00 UTC, and Thursday is the busiest day of the week. Of the 18 posts sampled, 39% carry an image or video and 67% link out. The account's strongest tracked post pulled 56K interactions, about 54x its own typical post. Recurring topics include #47news, #mdl, #東奥日報.

What is いとうせいこう's engagement rate on X?
いとうせいこう (@seikoito) has an engagement rate of 0.255%, based on the median interactions across 18 original posts from the last 30 days against 405,491 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.255%, いとうせいこう 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 @seikoito have real engagement?
Its engagement rate beats 85% 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 @seikoito post?
Most posts go out around 14:00 UTC, and Thursday is its busiest day, at roughly 3.8 posts per day across the measured window.

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