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株式会社石井マーク engagement report

@ishiimark_sign - 56K followers on X

Measured over 17 original posts from a 30-day window, last computed on October 8, 2026.

Engagement

Top quarter for its size
Per follower
0.714%
of 56K followers
Per impression
4.83%
8.3K views on a typical post
Reach
14.8%
of its followers see a post
Typical post
401
interactions (median)
Saved
0.133%
11 bookmarks on a typical post
Posting rate
2.23/day
active 30% of days
Peak time
03:00 UTC
Wednesday

A typical post picks up 401 interactions against 56K followers, an engagement rate of 0.714%. Measured over 17 original posts, its engagement rate beats 79% of 21,185 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 8.3K times each, and 4.83% of those impressions turn into an interaction. That is about 14.8% 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, though only 30% of days saw any activity at all. Most posts go out around 03:00 UTC, and Wednesday is the busiest day of the week. Of the 17 posts sampled, 76% carry an image or video and 59% are part of a thread. The account's strongest tracked post pulled 59K interactions, about 148x its own typical post. Recurring topics include #建災防, #新潟, #明治r1.

Measured over 17 original posts from a 30-day window, last computed on October 8, 2026. Recurring tags: #建災防, #新潟, #明治r1.

Compared with accounts its own size

株式会社石井マーク's engagement rate beats 79% of the tracked X accounts closest to it in follower count (21,185 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 83% 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 0.714%, 株式会社石井マーク sits above the 75th percentile of the 212,825 accounts in this comparison. That places it in the top 25% band, which runs 0.697% to 2.61%.

p100.004%
p250.025%
p50 (median)0.146%
p750.697%
p902.61%
p9983.0%
Engagement rate as a share of followers, across the 212,825 accounts we have scanned enough to measure. The axis is logarithmic, because the top and bottom of this population are about 22,436 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 percentile0.025%
50th percentile0.146%
75th percentile0.697%
90th percentile2.61%
99th percentile83.0%

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 03:00 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: 03:00 UTC.
0003060912151821
Above the authors' own mediansBelowScale: plus or minus 111%Busiest hour: 03:00 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: Wednesday.
SunMonTueWedThuFriSat
Above the authors' own mediansBelowScale: plus or minus 111%Busiest day: Wednesday
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 video76% of posts+111%+108% to +115%34K
Outbound link0% of posts-41%-42% to -40%32K
Typical length--3%-3% to -2%54K
  • 76% 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.
  • 0% 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 107 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 4, 2026148x their median

    ドイツ人の同僚が「この前、日本に初めて行ったんだけど、カフェもデパ地下も、食べ物が何でも美味しくてさ。中でもいちばん美味かったのが…」と話し始めたので、(ふむふむ、しょっぱいの好きなドイツ人だからラーメンとかかな。それか、ドイツの食べ物に似てるから、トンカツかな)と思っていたら、「マジで シャウエッセン最高だった…なんであんなに外はパリッとしていて、中はジューシーなんだ…」 と遠くを見ながら、うっとり恋しそうにつぶやいた。 あんたの国、本場やんか…

    51K7.3K2463565.2M viewsView on X
  • Oct 6, 202654x their median

    つい最近も『タミフルって異常行動起こすんですよね?』って言われたんだけど、 『インフルエンザのせいなんですよ、嫌ですね、メディアって伝えるだけ伝えて訂正しないですから』って言っておいた コレってメディアの仕事ですよね?

    17K4.1K4487480K viewsView on X
  • Jun 13, 201726x their median

    五月晴の中を時おり心地良い風が駆けてゆく日などは、窓やベランダの扉を開けてお過ごしの方も多くおられる事でしょう。 建築物の手すりや窓の高さは墜落防止の為にも適切に設計されている筈の箇所なのですが、例えば小さなお子様の場合。 踏み台になりそうな場所を見落とせば「まさか」が起きます。 https://t.co/KwskdhiH2q

    5.1K5.2K19102View on X
  • Oct 7, 20268.3x their median

    https://t.co/YidDYnE6Kn

    2.1K1.1K247952K viewsView on X
  • Jul 12, 20256.0x their median

    https://t.co/r0bQxENFKx

    1.6K6713178155K viewsView on X
  • Oct 28, 20254.0x their median

    https://t.co/goZQOUlWAA

    1.0K5191237113K viewsView on X
  • Oct 2, 20261.6x their median

    JIS C 6802「レーザ製品の安全 - クラス分け及び要求事項」は2018年版(追補)から改正され、現在は2025年版が最新です。 新旧規格ともに対応国際規格は IEC 60825-1:2014年度版に変わりないのですが、最新のTechnical Reports(TR 60825-14:2022 Ed2)を参考附属書へ反映した形の改正になっています。 https://t.co/lLEiNAE9ys

    408200141835K viewsView on X
  • Oct 3, 20261.5x their median

    https://t.co/gMMMOfX2Y0

    487126337.8K viewsView on X
  • Oct 7, 2026

    https://t.co/SwcClb1geM

    36293267.3K viewsView on X
  • Oct 5, 2026

    所謂ガードレールに関する話題を幾つか見かけましたから、ここで用語を整理するために図解を示します。 車道や歩道及びその境界に設置する防護柵は、車両用の防護柵と歩行者(及び歩道の自転車)のための防護柵に大別することができ、前者のうちコンクリート製の剛性構造を除けば次の4種が挙げられます。 https://t.co/OPtMEAaJnC

    318134129.9K 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

#建災防#新潟#明治r1#朱鷺メッセ#食欲の秋

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 401 interactions against 56K followers, an engagement rate of 0.714%. Measured over 17 original posts, its engagement rate beats 79% of 21,185 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 8.3K times each, and 4.83% of those impressions turn into an interaction. That is about 14.8% 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, though only 30% of days saw any activity at all. Most posts go out around 03:00 UTC, and Wednesday is the busiest day of the week. Of the 17 posts sampled, 76% carry an image or video and 59% are part of a thread. The account's strongest tracked post pulled 59K interactions, about 148x its own typical post. Recurring topics include #建災防, #新潟, #明治r1.

What is 株式会社石井マーク's engagement rate on X?
株式会社石井マーク (@ishiimark_sign) has an engagement rate of 0.714%, based on the median interactions across 17 original posts from the last 30 days against 56,141 followers. Replies, reposts and quote-posts of other people are excluded from that sample.
Is that a good engagement rate?
At 0.714%, 株式会社石井マーク sits above the 75th percentile of the 212,825 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 @ishiimark_sign have real engagement?
Its engagement rate beats 79% of the tracked X accounts closest to it in follower count (21,185 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 @ishiimark_sign post?
Most posts go out around 03:00 UTC, and Wednesday is its busiest day, at roughly 2.23 posts per day across the measured window.

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