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瀬名しえら(sierra) engagement report

@se7Sierra - 164K followers on X

Measured over 38 original posts from a 30-day window, last computed on September 22, 2026.

Engagement

Top quarter for its size
Per follower
0.751%
of 164K followers
Per impression
2.51%
48K views on a typical post
Reach
29.9%
of its followers see a post
Typical post
1.2K
interactions (median)
Saved
0.355%
170 bookmarks on a typical post
Posting rate
2.6/day
active 87% of days
Peak time
09:00 UTC
Sunday

A typical post picks up 1.2K interactions against 164K followers, an engagement rate of 0.751%. Measured over 38 original posts, its engagement rate beats 87% 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 48K times each, and 2.51% of those impressions turn into an interaction. That is about 29.3% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.6 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 09:00 UTC, and Sunday is the busiest day of the week. Of the 38 posts sampled, 71% carry an image or video, 29% are part of a thread and 5% link out. The account's strongest tracked post pulled 13K interactions, about 11x its own typical post.

Measured over 38 original posts from a 30-day window, last computed on September 22, 2026. Recurring tag: #ai夜市.

Compared with accounts its own size

瀬名しえら(sierra)'s engagement rate beats 87% of the tracked X accounts closest to it in follower count (20,444 accounts, accounts of similar size (decile 8 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 68% 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 0.751%, 瀬名しえら(sierra) sits above the 75th percentile of the 205,374 accounts in this comparison. That places it in the top 25% band, which runs 0.678% to 2.55%.

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 video71% of posts+111%+108% to +115%34K
Outbound link5% of posts-41%-42% to -40%32K
Typical length--8%-9% to -7%41K
  • 71% 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.
  • 5% 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 43 characters, which falls in the under 80 characters band. Across the catalog, posts under 80 characters run 8% 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

  • Sep 13, 202611x their median

    因習村の幼馴染 https://t.co/TPkNuQHJYV

    13K5311542.3M viewsView on X
  • Aug 25, 20265.4x their median

    後輩に脅される話 https://t.co/8ovANZjzzO

    6.1K322114229K viewsView on X
  • Sep 20, 20264.6x their median

    クラスの僕っ子にお願いしてみた(1/2)再掲 https://t.co/sKCrt4WHhT

    5.3K230171548K viewsView on X
  • Sep 19, 20264.2x their median

    地味メガネ女子だと思ったらが学校中に豊満ボディがバレてしまった話+α(1/2)再掲 https://t.co/QvMyuRXRwL

    4.8K23043127K viewsView on X
  • Sep 2, 20263.2x their median

    ひと夏の逃避行① 6日ほど続く予定… https://t.co/gkEaTwPPbg

    3.6K17563166K viewsView on X
  • Sep 21, 20263.1x their median

    ヤバイ先輩にからかわれる(1/2)再掲 https://t.co/vMNMJsIMbb

    3.6K9210153K viewsView on X
  • Sep 18, 20262.4x their median

    毒舌クール後輩ちゃんには近づけない(1/2) 原案:へを https://t.co/9hH5XlKgEW

    2.8K12030243K viewsView on X
  • Sep 2, 20262.2x their median

    塩対応だと思ってた後輩ちゃんが俺のことを好きすぎた(1/2)再掲 原案:へを https://t.co/dkVn42TJz6

    2.6K12540194K viewsView on X
  • Sep 16, 20262.1x their median

    地雷系妻と休日の朝(1/2) https://t.co/FJDncpHmA3

    2.4K11090130K viewsView on X
  • Sep 11, 20262.1x their median

    毒舌クール後輩は余裕しゃくしゃく(1/2) https://t.co/A8Ggrp8lRn

    2.4K10330204K 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

#ai夜市

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 1.2K interactions against 164K followers, an engagement rate of 0.751%. Measured over 38 original posts, its engagement rate beats 87% 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 48K times each, and 2.51% of those impressions turn into an interaction. That is about 29.3% of the follower count, which is the gap between an audience on paper and an audience in a timeline. Posting runs at about 2.6 posts a day over the last 30 days, with activity on almost every day in the window. Most posts go out around 09:00 UTC, and Sunday is the busiest day of the week. Of the 38 posts sampled, 71% carry an image or video, 29% are part of a thread and 5% link out. The account's strongest tracked post pulled 13K interactions, about 11x its own typical post.

What is 瀬名しえら(sierra)'s engagement rate on X?
瀬名しえら(sierra) (@se7Sierra) has an engagement rate of 0.751%, based on the median interactions across 38 original posts from the last 30 days against 163,510 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.751%, 瀬名しえら(sierra) sits above the 75th 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 @se7Sierra have real engagement?
Its engagement rate beats 87% 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 @se7Sierra post?
Most posts go out around 09:00 UTC, and Sunday is its busiest day, at roughly 2.6 posts per day across the measured window.

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