Telegram RegisterThe public register of Telegram

Channel

RuCTF

@RuCTF

On this record: Growth · Engagement · What this channel posts · Reactions · Posts · Citations · Cite this entry

770subscribers

+0 since we began measuring on 6 August 2026

Risers and fallers across the register · movement among entries of Under 1,000.

Register entry

Telegram ID-1001070952924
TypeChannel
Username@RuCTF
DescriptionRuCTFE is an annual online international challenge in the information security. PoC: @AAAlexeev. RuCTF.org
Created15 January 2017measured — cross-checked against a third-party dataset (ext.tg_channel)
First recorded6 August 2026
Last confirmed live6 August 2026
Measurements held2
On Telegramt.me/RuCTF

Growth

7706 Aug 2026, 12:28 — 770 subscribers6 Aug 2026, 15:48 — 770 subscribers6 Aug 2026, 12:286 Aug 2026, 15:48
2 measurements taken within a single day. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 769–771 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)SubscribersChange
6 Aug 2026, 15:48770no change
6 Aug 2026, 12:28770first reading

Engagement

20 posts held, back to 22 April 2023the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 1 pageof Telegram’s post history, 20 posts per page.

Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 20 posts for this entry, the most recent from 19 November 2025. An engagement rate over an empty window would be a number about nothing.

What this channel posts

Photos
240
Videos
14
Links
172

Lifetime counters from Telegram’s own channel header, read 6 August 2026 — not the date at the top of this page, which is when the subscriber count was last read. Below Telegram’s rounding threshold, so these counts are exact.

Reaction mix

239 reactions across 18 posts, in 20 distinct kinds. The most used accounts for 33.9% of them.

Every reaction kind recorded on the sample, most used first
ReactionCountShareShare, drawn
🔥8133.9%
🤡3012.6%
🏆2811.7%
🤔2711.3%
218.79%
👍104.18%
❤‍🔥72.93%
🤩72.93%
💊62.51%
🍾52.09%
🤯41.67%
31.26%
👏20.837%
👾20.837%
🌚10.418%
🎉10.418%
🐳10.418%
😱10.418%
🤮10.418%
🦄10.418%

No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.

Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.

Coverage. Reactions were read on 18 of the 20 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 239reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.

Measured over the 20 most recent posts we hold, published 22 April 2023 to 19 November 2025, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.

Recent posts

19 Nov 2025, 08:58 UTC703 views34 reactionsread 6 August 2026

Привет! Я Рушана, хочу пригласить на нашу Blockchain Security Fellowship программу в Statemind. Мы делимся собственными наработками и предлагаем участникам CTF‑челленджи, а еще собираем сообщество единомышленников. Участие всегда бесплатное - нам важно открыто передавать знания и повышать уровень безопасности блокчейн‑экосистемы. Детали ниже. Будем рады видеть всех увлеченных Web3 secutity. Есть небольшой входной т

🤡25💊6🌚1🐳1🔥1

25 Oct 2023, 14:50 UTC≈4,680 views18 reactionsread 6 August 2026
Photo

Greetings! We are pleased to announce that registration for RuCTF 2023 is officially open! 🦎 This year's event is slated for November 4th, starting at 10:00 UTC. To sign up, just fill out the registration form at ructf.org. Before the competition begins, we will provide you with all the necessary information to access the game network. 🦎 For this edition of RuCTF, we've delved into the realm of conspiracy theories.

🔥15🤡2👍1

6 Oct 2023, 09:35 UTC≈2,010 views32 reactionsread 6 August 2026
Photo

Photo, posted without a caption

🔥31🤮1

8 Sept 2023, 19:49 UTC≈2,350 views15 reactionsread 6 August 2026
Photo

We invite you to take a participation in cybersecurity international team competitions BRICS+ Capture The Flag. The qualification stage will be online in CTF Jeopardy format. The best teams will be able to compete in the final, which will be held online in CTF Attack-Defense format. The CTF is for any academic/professional team from all around the world. Top-3 teams from each of the 5 BRICS countries (Brazil, Russia

👍65🤡3🔥1

14 Aug 2023, 05:45 UTC≈1,760 views2 reactionsread 6 August 2026

Only 🔤🔤 days left until the competition. Hurry up if you want to join our 2-day Attack-Defence CTF! 🔤 https://2023.ctf.hitb.org/

1👍1

4 Aug 2023, 08:42 UTC≈2,020 views2 reactionsread 6 August 2026

This year, we have prepared a special training game to allow all participants to get a hands-on experience with our infrastructure before the main CTF event. As a registered participant, you will have access to the CTF Cloud Console, where you can launch a virtual machine with the service, search for vulnerability, hack another team, and protect your own service from potential attackers. This training will help you b

1😱1

30 Jul 2023, 16:58 UTC≈1,720 views11 reactionsread 6 August 2026
Photo

Over the past four years, Hackerdom (the organizer and developer of RuCTF) has collaborated closely with Hack in the Box conferences, hosting exciting Attack-Defence CTFs as part of their events. The upcoming conference will take place in August in Phuket, Thailand, and Hackerdom is once again organizing a grand CTF, offering participants the option to either join on-site in Phuket or play online! The competition is

🏆7🔥3👍1

25 Apr 2023, 11:10 UTC≈1,650 views28 reactionsread 6 August 2026

Our final results for international standings! 1. 🇷🇺 C4T BuT S4D 2. 🇮🇹 pwnthem0le 3. 🇷🇺 Bushwhackers Congrats! First-bloods: 1. museumorphosis: kks 2. lost_museum: C4T BuT S4D 3. solaris: C4T BuT S4D 4. Hermicache: C4T BuT S4D 5. sneakers: SPRAVEDLIVAЯ RUSH A 6. Stalker: C4T BuT S4D 7. Bookster: SPRAVEDLIVAЯ RUSH A 8. DCS: pwnthem0le 9. SCP: no auto-sploited firstblood Please, leave your feedback for us to know,

🏆213🔥21🎉1

24 Apr 2023, 13:08 UTC≈1,510 views12 reactionsread 6 August 2026

Finally, we have prepared our repo and now it is available at this link. Thank you all for your participation. With <3, Hackerdom

🔥12

22 Apr 2023, 14:02 UTC≈1,400 views3 reactionsread 6 August 2026

Competition has been finished. Results will be published soon. Thanks for participation! See you on the next event ;)

3

22 Apr 2023, 13:07 UTC≈1,290 views3 reactionsread 6 August 2026

"wetox" got real first blood on service "SCP” 👼!

🔥3

22 Apr 2023, 11:36 UTC≈1,280 views9 reactionsread 6 August 2026

“pwnthem0le” got real first blood on service “DCS” 🌊!

🤩7🤯2

Showing the 12 most recent of 20 posts we hold for @RuCTF. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.

Citation-graph rank

Citation-graph rank — 169,680 of 1,169,250entries in the measured graph. A weighted position computed from the forward and mention edges below — republished posts weigh more than named mentions — and recomputed periodically, over the whole graph. Published only as this ordinal position, never as a score: a position is a fact, and a score printed beside one channel’s name would read as a verdict this register does not make. The two counts beneath stay separate for the same reason mentions are never summed with forwards anywhere else on this page — a named-by count costs nothing to manufacture. The top 100 by this measure, or how it is computed.

Forward network

Republished by

Channels on the register that have forwarded this channel's posts into their own feed.

Built only from forwarded posts we have actually read, on both sides. Coverage is early and deliberately incomplete: a missing link means we have not read the post that would prove it, never that the relationship does not exist. Counts are distinct forwarded posts observed, so they only ever go up as we read more.

Mentions

Named by 4 registered channels — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.

A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.

Cite this entry

A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 6 August 2026 — this entry's latest reading, not the date you are reading this.

“RuCTF” (@RuCTF), 770 subscribers as measured 6 August 2026. Telegram Register, tgregister.com/channel/RuCTF.

Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.