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城瀬いすみ🏰🍬にじさんじ engagement report

@Shiro_Isumyan - 99K followers on X

Measured over 20 original posts from a 30-day window, last computed on August 24, 2026.

Engagement

Top 10% for its size
Per follower
2.10%
of 99K followers
Per impression
4.42%
46K views on a typical post
Reach
47.5%
of its followers see a post
Typical post
2.0K
interactions (median)
Saved
0.037%
17 bookmarks on a typical post
Posting rate
2.07/day
active 37% of days
Peak time
10:00 UTC
Thursday

A typical post picks up 2.0K interactions against 99K followers, an engagement rate of 2.10%. Measured over 20 original posts, its engagement rate beats 95% of 3,917 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 46K times each, and 4.42% of those impressions turn into an interaction. That is about 46.1% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.1 posts a day over the last 30 days, though only 37% of days saw any activity at all. Most posts go out around 10:00 UTC, and Thursday is the busiest day of the week. Of the 20 posts sampled, 60% carry an image or video and 70% link out. The account's strongest tracked post pulled 26K interactions, about 13x its own typical post. Recurring topics include #3skm_1stライブ, #にじメンマイクラ, #城瀬いすみ.

Measured over 20 original posts from a 30-day window, last computed on August 24, 2026. Recurring tags: #3skm_1stライブ, #にじメンマイクラ, #城瀬いすみ.

Compared with accounts its own size

城瀬いすみ🏰🍬にじさんじ's engagement rate beats 95% of the tracked X accounts closest to it in follower count (3,917 accounts, accounts of similar size (decile 5 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 87% 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 2.10%, 城瀬いすみ🏰🍬にじさんじ sits above the 75th percentile of the 37,856 accounts in this comparison. That places it in the top 25% band, which runs 0.439% to 2.10%.

p100.002%
p250.012%
p50 (median)0.081%
p750.439%
p902.10%
p99155.6%
Engagement rate as a share of followers, across the 37,856 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 97,248 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 percentile0.002%
25th percentile0.012%
50th percentile0.081%
75th percentile0.439%
90th percentile2.10%
99th percentile155.6%

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 10:00 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: 10:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 6%Busiest hour: 10:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%53K
01:00 UTC-2%53K
02:00 UTC-3%52K
03:00 UTC-4%55K
04:00 UTC-6%44K
05:00 UTC-4%43K
06:00 UTC-4%50K
07:00 UTC-5%54K
08:00 UTC-4%63K
09:00 UTC-3%72K
10:00 UTC-2%75K
11:00 UTC-3%81K
12:00 UTC-2%90K
13:00 UTC-2%98K
14:00 UTC-3%101K
15:00 UTC-2%105K
16:00 UTC-4%102K
17:00 UTC-3%95K
18:00 UTC-1%88K
19:00 UTC-2%83K
20:00 UTC-1%77K
21:00 UTC-1%69K
22:00 UTC-2%60K
23:00 UTC-2%53K
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 5%Busiest day: Thursday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+5%238K
Monday0%302K
Tuesday-3%302K
Wednesday-1%257K
Thursday-2%250K
Friday-3%259K
Saturday+3%233K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Best tweets

  • Aug 5, 202613x their median

    ファイアダンス - Vivid BAD SQUAD 様   歌ってみた / セラフ・ダズルガーデン & 風楽奏斗 & 城瀬いすみ &篠宮ゆの 【https://t.co/yVUUHkuCVp】 https://t.co/NlbhxySTMG

    19K5.0K301.3K1.5M viewsView on X
  • Jul 26, 202610x their median

    °˖♡- - - - - - -ʚ🏰ɞ - - - - - - -♡˖°   ダーリンダンス - かいりきベア様   歌ってみた / 城瀬いすみ & 早乙女ベリー 【https://t.co/Ngmi8sxIgk】 °˖♡- - - - - - -ʚ🍰ɞ - - - - - - -♡˖° https://t.co/eUnxHOwXcX

    17K3.1K18492486K viewsView on X
  • Aug 14, 20265.8x their median

    ✧⊹˖┈ ┈ ┈ ┈ ┈ ┈˖⊹✧ 「ポニーテールと      シュシュ」  covered by すぷれあ ✧⊹˖┈ ┈ ┈ ┈ ┈ ┈˖⊹✧ 君の笑顔 僕の夏が始まる 【 https://t.co/SCGhu9ZCl6 】 https://t.co/iZaa1ab3yz

    9.5K1.9K2294653K viewsView on X
  • Sep 22, 20254.7x their median

    【❥タグ各種】 城瀬いすみ(Shirose isumi) ಇ 配信 : #いすみと登城 ಇ ファンマーク : 🏰🍬 ಇ FA : #シロ展示館 ಇサムネイル : #おめかシロ ಇエゴサ : #いすみいいこ ಇアクセサリー : #いすみゃコーデ ಇボイス感想 : #いすみィータイム ಇプロフ帳 : #いすみの取扱説明書 https://t.co/7sdw7z8Vq7

    8.2K1.0K421651.9M viewsView on X
  • Aug 20, 20263.0x their median

    13万人ありがとうの気持ち♡ https://t.co/TVNQXLVbmF https://t.co/TBEjD9Owvc

    5.3K541903051K viewsView on X
  • Aug 18, 20262.2x their median

    【❥TikTok ・short投稿】 未完成婚姻論 / Dannie May様 城瀬いすみ 歌ってみた °˖♡- - - - - - - ʚ🏰🍰ɞ - - - - - - -♡˖° TikTok :【https://t.co/6uYqu3e88a】 Youtube :【https://t.co/qeesoRfJy2】 https://t.co/jbf10SAiY3

    3.7K562249879K viewsView on X
  • Aug 13, 20261.7x their median

    【❥配信告知】 ಇ8/14 20:30〜 https://t.co/hJoHgHVFT0 °˖♡- - - - - - - ʚ 🏰 ɞ - - - - - - -♡˖° 初のASMR🌙いろんな音で君を癒すよ🤍 初めてなので、うまくできるか不安だけど、安眠にご案内〜🥱 https://t.co/HAECbm25HH

    2.7K43537183190K viewsView on X
  • Aug 19, 20261.7x their median

    short動画投稿𓂃༞🩵29日目! 家長さんとのコラボ6本目~! It's Me踊ってみました!難しかった🫠 今回の編集もすぷれあのいすみゃにしてもらってます! いっすみーってか・・・わはは それじゃあ、いすみゃ後は任せましたよ。 https://t.co/CG15W4hbJk

    3.1K26486318K viewsView on X
  • Aug 19, 20261.6x their median

    夏休み自由研究おつれあ〜‼️👑💍🏰🧢 久しぶりに紙粘土コネコネできて楽しかった〜‼️ BIGちゃんぜっちゃんぜっちゃんぜぜぜっちゃん‼️つくってみてね。 これは左から ばさばさつばさ カブトムシ マカロン おにぎり https://t.co/mbnWkn0tOS

    3.0K22191636K viewsView on X
  • Aug 24, 2026

    【❥TikTok ・short投稿】 深海少女 / ゆうゆ様 城瀬いすみ 歌ってみた °˖♡- - - - - - - ʚ🏰🍬ɞ - - - - - - -♡˖° TikTok :【https://t.co/KLEhP5QXvr】 Youtube :【https://t.co/3INEYqqGhF】 https://t.co/aX2Xd6wMas

    2.0K329163540K 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

#3skm_1stライブ#にじメンマイクラ#城瀬いすみ#篠宮ゆの#にじサカフェス

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 2.0K interactions against 99K followers, an engagement rate of 2.10%. Measured over 20 original posts, its engagement rate beats 95% of 3,917 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 46K times each, and 4.42% of those impressions turn into an interaction. That is about 46.1% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.1 posts a day over the last 30 days, though only 37% of days saw any activity at all. Most posts go out around 10:00 UTC, and Thursday is the busiest day of the week. Of the 20 posts sampled, 60% carry an image or video and 70% link out. The account's strongest tracked post pulled 26K interactions, about 13x its own typical post. Recurring topics include #3skm_1stライブ, #にじメンマイクラ, #城瀬いすみ.

What is 城瀬いすみ🏰🍬にじさんじ's engagement rate on X?
城瀬いすみ🏰🍬にじさんじ (@Shiro_Isumyan) has an engagement rate of 2.10%, based on the median interactions across 20 original posts from the last 30 days against 99,151 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 2.10%, 城瀬いすみ🏰🍬にじさんじ sits above the 75th percentile of the 37,856 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 @Shiro_Isumyan have real engagement?
Its engagement rate beats 95% of the tracked X accounts closest to it in follower count (3,917 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 @Shiro_Isumyan post?
Most posts go out around 10:00 UTC, and Thursday is its busiest day, at roughly 2.07 posts per day across the measured window.

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