磯山さやか engagement report
@sayaka23isoyama - 521K followers on X
Measured over 8 original posts from a 30-day window, last computed on October 17, 2026.
Engagement
A typical post picks up 2.1K interactions against 521K followers, an engagement rate of 0.408%. Measured over 8 original posts, its engagement rate beats 90% 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 63K times each, and 3.37% of those impressions turn into an interaction. That is about 12.1% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.5 post a day over the last 30 days, though only 33% of days saw any activity at all. Most posts go out around 10:00 UTC, and Saturday is the busiest day of the week. Of the 8 posts sampled, 50% carry an image or video and 25% link out. The account's strongest tracked post pulled 17K interactions, about 7.9x its own typical post. Recurring topics include #磯山さやか, #夜ドラ, #奥平大兼.
Measured over 8 original posts from a 30-day window, last computed on October 17, 2026. Recurring tags: #磯山さやか, #夜ドラ, #奥平大兼.
Compared with accounts its own size
磯山さやか's engagement rate beats 90% 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 81% 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 0.408%, 磯山さやか sits above the 50th percentile of the 204,880 accounts in this comparison. That places it in the above the median band, which runs 0.143% to 0.678%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.004% |
| 25th percentile | 0.024% |
| 50th percentile | 0.143% |
| 75th percentile | 0.678% |
| 90th percentile | 2.55% |
| 99th percentile | 82.4% |
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 10:00 UTC, and Saturday 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.
Show engagement by hour posted, utc as a table
| Hour (UTC) | Vs author median | Posts |
|---|---|---|
| 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 UTC | 0% | 116K |
| 22:00 UTC | -2% | 100K |
| 23:00 UTC | -1% | 90K |
Show engagement by day of week as a table
| Day | Vs author median | Posts |
|---|---|---|
| Sunday | +5% | 393K |
| Monday | +1% | 483K |
| Tuesday | -2% | 520K |
| Wednesday | -3% | 472K |
| Thursday | -2% | 430K |
| Friday | -3% | 447K |
| Saturday | +2% | 393K |
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.
| Format | This account | Catalog effect | 95% interval | Accounts behind it |
|---|---|---|---|---|
| Image or video | 50% of posts | +111% | +108% to +115% | 34K |
| Outbound link | 25% of posts | -41% | -42% to -40% | 32K |
| Typical length | - | -3% | -3% to -2% | 54K |
- 50% 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.
- 25% of its posts carry a link off X. Across the catalog, posts with an outbound link run 41% below the same accounts' other posts.
- Its average post runs 103 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
- Oct 9, 20257.9x their median
10月22日発売 磯山さやかデビュー25周年写真集 『余韻』 表紙決定しました!いかがですか? ▶︎通常https://t.co/9lozMZWrFX ▶︎豪華版https://t.co/o1kmqH3b3Z 発売記念イベント会いに来てください! 日時:10月25日(土)12時〜 会場: 六本木 蔦屋書店2階 ▶︎https://t.co/G72Hmkem3K https://t.co/Yaw4JrX36q
- Sep 15, 20267.8x their median
仰天ニュースで、カニアレルギーの子がカニカマスープの匂いでアレルギーが発症したとやっているけど、本当になる。湯気にも混じってるから、私は隣の人がカニクリームコロッケを食べてた時に、初めて匂うだけでも発症してビックリした。 それ以来、他の人がエビやカニを食べている時も気をつけています。
- Oct 12, 20266.0x their median
#CDTVライブライブ 本番直前ショットで実況中📸 大好評のフェス企画に #EXILE が登場! 🎊結成25周年🎊 オリジナルメンバー 松本利夫、ÜSA、 MAKIDAIが再集結😎🌟 「Choo Choo TRAIN」「Rising Sun」 「I Wish For You」「Lovers Again」など 全13曲を激アツライブ❤️🔥 #CDTV_EXILEフェス #TBS https://t.co/f3BAp37liI
- Aug 7, 20263.9x their median
Jリーグ開幕!! もう最高な試合でした!!!! ありがとう!! 声出しすぎて喉が痛い。 #鹿島アントラーズ https://t.co/t8RLehBrrS
- Jul 25, 20263.2x their median
枕の争奪戦いまのところ負けております。 電気を消しに立った瞬間、この写真からさらに足を伸ばし8割取られました。 https://t.co/DVZT5ucrEt
- Jul 4, 20263.1x their median
湿疹と1ヶ月以上お付き合いの中で、かゆみで起きちゃう日々が3週間くらいなんだけど、やっと少し良くなってきたかと思ったら新たに湿疹🥹 そして昨日からギックリ腰のような感じで、立っても座っても痛い。一難去ってまた一難。ギリッギリだけど負けないよう、気合い入れていなり寿司と唐揚げとりんごとカツサンドとミルクフランスを買ってきた!
- May 29, 20262.2x their median
このあと8:30‼️ 『#土曜はナニする!?』は...📡 ㊗️今年25周年! 🚢東京ディズニーシー®︎大満喫スペシャル🚢 🌟 土ナニ豪華ゲスト陣が 東京ディズニーシーへ あばれる君さん⚡️ M!LK 塩﨑太智さん🍼 3時のヒロインかなでさん🍴 磯山さやかさん🌸 =LOVE 大谷映美里さん💓 河合郁人さん🕺 谷まりあさん🦋 知っていると100倍楽しめる! 東京ディズニーシーを徹底攻略📚 💁♀️是非ご覧下さい💁
- Oct 3, 20262.8x their median
石川投手 25年間おつかれさまでした! 本当にありがとうございました!! #swallows https://t.co/VzR3fXYjPh
- Jul 28, 20262.4x their median
余震がまだあるかもしれないので、身の安全を第一に、少しでも安心できる涼しい場所にいてください。みなさんと動物達の無事を祈っています。
- Aug 29, 20262.3x their median
開幕4連勝!!!! #鹿島アントラーズ https://t.co/6hX7p6BEDr
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
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 2.1K interactions against 521K followers, an engagement rate of 0.408%. Measured over 8 original posts, its engagement rate beats 90% 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 63K times each, and 3.37% of those impressions turn into an interaction. That is about 12.1% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 0.5 post a day over the last 30 days, though only 33% of days saw any activity at all. Most posts go out around 10:00 UTC, and Saturday is the busiest day of the week. Of the 8 posts sampled, 50% carry an image or video and 25% link out. The account's strongest tracked post pulled 17K interactions, about 7.9x its own typical post. Recurring topics include #磯山さやか, #夜ドラ, #奥平大兼.
- What is 磯山さやか's engagement rate on X?
- 磯山さやか (@sayaka23isoyama) has an engagement rate of 0.408%, based on the median interactions across 8 original posts from the last 30 days against 520,520 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
- Is that a good engagement rate?
- At 0.408%, 磯山さやか sits above the 50th percentile of the 204,880 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 @sayaka23isoyama have real engagement?
- Its engagement rate beats 90% 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 @sayaka23isoyama post?
- Most posts go out around 10:00 UTC, and Saturday is its busiest day, at roughly 0.5 posts per day across the measured window.