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望月けい engagement report

@key_999 - 1.1M followers on X

Measured over 9 original posts from a 30-day window, last computed on September 1, 2026.

Engagement

Top quarter for its size
Per follower
0.157%
of 1.1M followers
Per impression
1.74%
97K views on a typical post
Reach
9.01%
of its followers see a post
Typical post
1.7K
interactions (median)
Saved
0.129%
125 bookmarks on a typical post
Posting rate
2.23/day
active 63% of days
Peak time
02:00 UTC
Wednesday

A typical post picks up 1.7K interactions against 1.1M followers, an engagement rate of 0.157%. Measured over 9 original posts, its engagement rate beats 80% of 3,774 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 97K times each, and 1.74% of those impressions turn into an interaction. That is about 9.00% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.2 posts a day over the last 30 days, with activity on roughly 63% of days. Most posts go out around 02:00 UTC, and Wednesday is the busiest day of the week. Of the 9 posts sampled, 44% carry an image or video and 11% link out. The account's strongest tracked post pulled 46K interactions, about 27x its own typical post. Recurring topics include #リボンヒーロー, #theribbonhero, #内山昂輝.

Measured over 9 original posts from a 30-day window, last computed on September 1, 2026. Recurring tags: #リボンヒーロー, #theribbonhero, #内山昂輝.

Compared with accounts its own size

望月けい's engagement rate beats 80% of the tracked X accounts closest to it in follower count (3,774 accounts, accounts of similar size (decile 9 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 66% 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 0.157%, 望月けい sits above the 50th percentile of the 36,521 accounts in this comparison. That places it in the above the median band, which runs 0.08% to 0.434%.

p100.002%
p250.012%
p50 (median)0.08%
p750.434%
p902.10%
p99160.7%
Engagement rate as a share of followers, across the 36,521 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 107,166 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 percentile0.08%
75th percentile0.434%
90th percentile2.10%
99th percentile160.7%

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 02:00 UTC, and Wednesday 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: 02:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 6%Busiest hour: 02:00 UTC
Show engagement by hour posted, utc as a table
Engagement by hour posted, UTC
Hour (UTC)Vs author medianPosts
00:00 UTC-1%50K
01:00 UTC-2%51K
02:00 UTC-3%50K
03:00 UTC-4%53K
04:00 UTC-6%43K
05:00 UTC-4%42K
06:00 UTC-4%48K
07:00 UTC-5%52K
08:00 UTC-4%60K
09:00 UTC-3%69K
10:00 UTC-2%72K
11:00 UTC-3%78K
12:00 UTC-2%86K
13:00 UTC-2%94K
14:00 UTC-4%97K
15:00 UTC-2%100K
16:00 UTC-3%97K
17:00 UTC-2%90K
18:00 UTC-1%84K
19:00 UTC-2%79K
20:00 UTC-1%74K
21:00 UTC-1%66K
22:00 UTC-2%57K
23:00 UTC-2%51K
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: Wednesday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 5%Busiest day: Wednesday
Show engagement by day of week as a table
Engagement by day of week
DayVs author medianPosts
Sunday+4%230K
Monday0%286K
Tuesday-2%276K
Wednesday-1%251K
Thursday-1%244K
Friday-3%252K
Saturday+3%227K
See what moves engagement across the whole catalogWhat counts as a good engagement rate at this size

Best tweets

  • Nov 15, 202527x their median

    装 https://t.co/7iFzcU5bjQ

    43K3.1K32321.6M viewsView on X
  • Aug 16, 20269.1x their median

    今回リボンヒーローにてキャラ原案のみでなく、原画も5カットほど担当してます アニメーターのりおさんに丁寧に教えていただきながら初めて描かせていただきました よろしくお願いいたします https://t.co/TuHtnw1fsY

    14K1.0K976566K viewsView on X
  • Aug 26, 20265.9x their median

    PCやスマホから受験可能 ◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢   都市伝説解体・センター試験 オンライン受験が待望の再開! ◤◢◤◢◤◢◤◢◤◢◤◢◤◢◤◢ これはSNS調査技能や都市伝説解体力を問う 都市伝説解体センターによる試験です https://t.co/RDJoD0hY22 https://t.co/tS2TOkKb9l

    7.8K2.0K21921.4M viewsView on X
  • Mar 16, 20262.4x their median

    \#フリュープライズ速報/ 望月けい様(@key_999)デザイン🎨 「#レーシングミク 2025 セパンVer.」が #ムチュート フィギュアになって登場🏎️💨 健康的な肌が魅力的✨ 水鉄砲を構えた元気いっぱいのレーシングミクは26年8月頃より展開予定🏁 @FURYU_prizeフォローで続報を✅ #初音ミク #fightgsr #フリュープライズ #フリュー

    3.3K628071314K viewsView on X
  • Aug 26, 20262.0x their median

    美術館が好きなのでフェルメール展行ってきた 観終わったあと「オランダでゆっくり観たい」って言ってる人多くいたから、絵画鑑賞により興味を持つ人が増えたということにとても価値がある展覧会だったんだろうと思う 他画家作品も観られて楽しかった

    3.2K11914158K viewsView on X
  • Jul 24, 20261.9x their median

    ◤ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄ ̄  GRIDMAN UNIVERSE|望月けい Vol.2  at baseyard tokyo ____________________◢ 2年前に開催した超人気イラストレーター「望月けい」と 劇場版『グリッドマンユニバース』のコラボ第二弾🪼 美麗アートを使用した新規オリジナルグッズの 先行販売を原宿の「baseyard tokyo」にて開催🎉 📍2026年8月7日〜8月23日まで 🏬ベースヤードトーキョー原宿路面店、EDITH ONLINE(受注アイテムのみ) さらなる詳細以下ツリー、ご確認ください🙇 @SSSS_PROJECT @key_999 #GRIDMAN_UNIVERSE #グリッドマンユニバース望月けい @CULTURE48830430

    2.6K593340623K viewsView on X
  • Aug 24, 2026

    Behind the #THERIBBONHERO ┈┈┈┈┈┈┈┈┈┈┈┈┈୨୧⑅*。 ベルベット:cv.#内山昂輝 の原画公開 ✎﹏﹏ 原画:#望月けい ﹏﹏ 『THE RIBBON HERO #リボンヒーロー』 Netflixにて好評配信中 https://t.co/EAMjiVsqY8

    1.7K252028255K viewsView on X
  • Aug 21, 2026

    #リボンヒーロー https://t.co/MAPKdYSeIa

    1.4K2400389K viewsView on X
  • Aug 19, 2026

    グリッドマン第二弾、せっかくなら描きたくて後ろのグリッドマンと怪獣を初めて描きました 初めて描くものは色々気付きがあり楽しかったです

    694661197K viewsView on X
  • Aug 21, 2026

    今日夜に多分お仕事の告知ひとつある

    54993080K 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

#リボンヒーロー#theribbonhero#内山昂輝#望月けい#figma

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 1.7K interactions against 1.1M followers, an engagement rate of 0.157%. Measured over 9 original posts, its engagement rate beats 80% of 3,774 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 97K times each, and 1.74% of those impressions turn into an interaction. That is about 9.00% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.2 posts a day over the last 30 days, with activity on roughly 63% of days. Most posts go out around 02:00 UTC, and Wednesday is the busiest day of the week. Of the 9 posts sampled, 44% carry an image or video and 11% link out. The account's strongest tracked post pulled 46K interactions, about 27x its own typical post. Recurring topics include #リボンヒーロー, #theribbonhero, #内山昂輝.

What is 望月けい's engagement rate on X?
望月けい (@key_999) has an engagement rate of 0.157%, based on the median interactions across 9 original posts from the last 30 days against 1,076,527 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.157%, 望月けい sits above the 50th percentile of the 36,521 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 @key_999 have real engagement?
Its engagement rate beats 80% of the tracked X accounts closest to it in follower count (3,774 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 @key_999 post?
Most posts go out around 02:00 UTC, and Wednesday is its busiest day, at roughly 2.23 posts per day across the measured window.

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