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
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 212,741 accounts in this comparison. That places it in the top 25% band, which runs 0.697% to 2.61%.
Show the percentile table
| Percentile | Engagement rate |
|---|---|
| 10th percentile | 0.004% |
| 25th percentile | 0.025% |
| 50th percentile | 0.146% |
| 75th percentile | 0.697% |
| 90th percentile | 2.61% |
| 99th percentile | 82.8% |
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.
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 | 76% of posts | +111% | +108% to +115% | 34K |
| Outbound link | 0% 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…
- 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?
- 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
- Oct 7, 20268.3x their median
https://t.co/YidDYnE6Kn
- Jul 12, 20256.0x their median
https://t.co/r0bQxENFKx
- Oct 28, 20254.0x their median
https://t.co/goZQOUlWAA
- 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
- Oct 3, 20261.5x their median
https://t.co/gMMMOfX2Y0
- Oct 7, 2026
https://t.co/SwcClb1geM
- 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
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 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 212,741 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.