🖥 Blue Team Handbook: Incident Response, 1st Edition (2026) "Blue Team Handbook: Incident Response" — практический справочник для защитников: сжатый формат «под рукой во время инцидента», а не теоретический курс. Рассчитана на SOC-аналитиков, специалистов реагирования и администраторов, отвечающих за безопасность. Материал относится к легальной защите собственной инфраструктуры. 📌 Скачать курс Букич IT

Channel
Букич IT
@booki47
On this record: Topic · Growth · Engagement · What this channel posts · Reactions · Posts · Citations · Cite this entry
33,071subscribers
-605 since we began measuring on 7 August 2026
Risers and fallers across the register · movement among entries of 31,623–100,000.
Register entry
| Telegram ID | -1001633557902 |
|---|---|
| Type | Channel |
| Username | @booki47 |
| Description | Публикуем полезные курсы для разработчиков Ссылка: @Portal_v_IT Сотрудничество, авторский права: @oleginc Менеджер: @Spiral_Yuri Канал на бирже: https://telega.in/c/booki47 РКН: clck.ru/3Ht4PS #ROLCV |
| Created | Between 1 December 2021 and 30 April 2023 — estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 7 August 2026 |
| Last confirmed live | 16 October 2026 |
| Measurements held | 40 |
| Confirmed unchanged | 1 time, most recently 16 October 2026 |
| On Telegram | t.me/booki47 |
Topic
Education — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-FP8, prompt version 1) read this channel’s own recent posts on 9 September 2026 and assigned it the closest of 31 fixed categories, at 73% confidence. This is a model’s judgement about what the channel is likely to be about, not a fact this register measured the way a subscriber count or a view count is measured — it can be revised on a later pass, and it carries no weight anywhere else on this page. How this classification works, and why it has no browse page of its own yet.
Growth
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 16 Oct 2026, 17:37 | 33,071 | -12 |
| 15 Oct 2026, 17:57 | 33,083 | -9 |
| 14 Oct 2026, 15:40 | 33,092 | -18 |
| 13 Oct 2026, 04:28 | 33,110 | -37 |
| 8 Oct 2026, 20:40 | 33,147 | -33 |
| 4 Oct 2026, 12:40 | 33,180 | -74 |
| 26 Sept 2026, 06:00 | 33,254 | -64 |
| 17 Sept 2026, 13:42 | 33,318 | -22 |
| 15 Sept 2026, 11:37 | 33,340 | -19 |
| 13 Sept 2026, 22:58 | 33,359 | -12 |
| 12 Sept 2026, 03:39 | 33,371 | -17 |
| 9 Sept 2026, 22:36 | 33,388 | -37 |
| 6 Sept 2026, 18:37 | 33,425 | -28 |
| 4 Sept 2026, 09:41 | 33,453 | -8 |
| 2 Sept 2026, 21:46 | 33,461 | -9 |
| 1 Sept 2026, 21:15 | 33,470 | -8 |
| 1 Sept 2026, 00:07 | 33,478 | -7 |
| 31 Aug 2026, 00:38 | 33,485 | -5 |
| 30 Aug 2026, 02:37 | 33,490 | -7 |
| 29 Aug 2026, 02:55 | 33,497 | first reading |
Engagement
163 posts held, back to 29 July 2026 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 142 pages of Telegram’s post history, 20 posts per page.
- ERR · 30 days
- 2.62%
- avg views ÷ 33,071 subscribers
- Avg views / post
- 865
- 58 posts measured
- Reaction rate
- 0.114%
- reactions ÷ views · ER floor
- Posts in window
- 58
- of 163 held
ERR is average views per post over the last 30 days divided by subscribers, the definition TGStat uses, so this figure is comparable with the one you will see elsewhere. It falls structurally as a channel grows: a high ERR on a small channel and a low one on a large channel describe reach mathematics, not quality. We publish the figure and the sample it came from and pass no verdict on it.
ER is defined industry-wide as (forwards + reactions + comments) ÷ views — note the denominator is views, not subscribers. Telegram’s public web preview carries views and reactions but not forward or comment counts, so the reaction rate above is the reactions term only and is therefore a floor: the true ER for this channel is higher by an amount we have not measured and will not estimate. It is computed over the 14 of 58 measured posts that carry a reaction reading, and over those same posts' views.
| Window | Rolling 30 days · latest post in window 16 October 2026 |
|---|---|
| Posts held | 163 (29 July 2026 – 16 October 2026) |
| Views total | 50,197 |
| Reactions total | 14 |
| Forwards / comments | not exposed by the public surface — not measured, not estimated |
| Readings taken | 17 Oct 2026, 06:39 UTC |
Views are a single reading per post, taken at the time above. A post published in the last day or two is still accumulating views, which pulls the 30-day average down slightly. That is a property of the standard definition rather than a fault in it, so we keep the definition rather than “correcting” the number into something nobody can reproduce.
Precision. Telegram publishes view counts on its public widget in short form — 8.12K, 3.7M — so any reading at or above 1,000 reaches us rounded to three significant figures, and only counts below 1,000 are exact. Averages and rates derived from them are shown to the same precision rather than to the unit: a figure like 3,701,250 would assert digits nobody measured.
Reaction counts are published per emoji and rounded the same way, so a total below 1,000 is exact and a larger one is a sum that may carry a rounded component from each emoji above 1,000. Because it is a sum, it does not look rounded — read a large reaction total as three significant figures per contributing emoji rather than as the figure it prints.
What this channel posts
- Photos
- ≈3,350
- Videos
- ≈388
- Links
- ≈3,440
Lifetime counters from Telegram’s own channel header, read 17 October 2026 — not the date at the top of this page, which is when the subscriber count was last read. A count marked ≈ was rounded by Telegram before we ever saw it — t.me prints these counters in full below 1,000 and to three significant figures above, so ≈142,000 means somewhere between 141,500 and 142,499.
- Video runtime
- 4m 28s
- Average length
- 54s
Measured directly from 5 videos with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no ≈ mark.
Reaction mix
43 reactions across 34 posts, in 5 distinct kinds. The most used accounts for 62.8% of them.
| Reaction | Count | Share | Share, drawn |
|---|---|---|---|
| ❤ | 27 | 62.8% | |
| 👍 | 11 | 25.6% | |
| 👎 | 2 | 4.65% | |
| 🔥 | 2 | 4.65% | |
| 🤨 | 1 | 2.33% |
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 46 of the 163 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 43 reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.
Measured over the 163 most recent posts we hold, published 29 July 2026 to 16 October 2026, 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
🖥 Web Performance Engineering in the Age of AI: Mastering Speed and Quality for AI-Generated Applications (2026) "Web Performance Engineering in the Age of AI" — классическая веб-оптимизация с поправкой на новую реальность: кода, сгенерированного ИИ, стало много, и он нередко раздут. Рассчитана на фронтенд-разработчиков, уже знакомых с основами веб-производительности. 📌 Скачать курс Букич IT
🖥 The Art of Decoding Microservices: An In-Depth Exploration of Modern Software Architecture (2025) "The Art of Decoding Microservices" — обзорный разбор архитектурного стиля: от выделения границ до эксплуатации, с акцентом на компромиссы, а не на один стек. Рассчитана на бэкенд-разработчиков и архитекторов, переходящих от монолита к сервисам. Содержание конкретно этого издания я не проверял — за точный состав глав…
🖥 Responsible Software Engineering: With Real-World Case Studies from Google (2025) "Responsible Software Engineering" — книга о технике как об инженерной ответственности: не отдельная «этика сверху», а встроенные в разработку требования — доступность, приватность, справедливость, устойчивость. Материал опирается на разборы случаев из практики Google. Аудитория — инженеры, лиды и продакт-менеджеры. Содержание конкр…
🖥 How to Design Programs: An Introduction to Programming and Computing, 2nd Edition. Matthias Felleisen, Robert Bruce Findler, Matthew Flatt, Shriram Krishnamurthi. MIT Press (2018) "How to Design Programs" — книга не про конкретный язык, а про систематический метод проектирования: язык (учебный диалект Racket) здесь второстепенен и намеренно минимален. Порог входа нулевой, но подход академический — это курс мышлен…
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❤1
🖥 Designing Data-Intensive Applications: The Big Ideas Behind Reliable, Scalable, and Maintainable Systems, 2nd Edition. Martin Kleppmann, Chris Riccomini. O'Reilly (2026) "Designing Data-Intensive Applications" — книга не про конкретные СУБД, а про принципы, стоящие за ними: после неё выбор технологии становится аргументированным. Рассчитана на инженеров и архитекторов с опытом; читается медленно, зато остаётся ак…
🖥 Mastering WooCommerce: Build, customize, and launch a complete e-commerce website with WooCommerce from scratch, 2nd Edition (2024) "Mastering WooCommerce" — руководство по сборке интернет-магазина на связке WordPress и WooCommerce, от установки до запуска. Рассчитана на владельцев бизнеса, веб-разработчиков и фрилансеров; часть про доработку темами и хуками предполагает базовое знание PHP, базовые же настройки д…
🖥 GameMaker Programming Challenges: Programming Challenges to Improve Your GML Knowledge (2025) "GameMaker Programming Challenges" — сборник задач, а не учебник: язык GML и сам движок нужно уже знать на базовом уровне, книга их не вводит. Формат — тренажёр для закрепления через практику, подойдёт тем, кто прошёл вводный курс по GameMaker и хочет набить руку. 📌 Скачать курс Букич IT
🖥 Container Security: Fundamental Technology Concepts That Protect Cloud Native Applications, 2nd Edition. Liz Rice. O'Reilly (2025) "Container Security" — книга объясняет механику изоляции на уровне ядра Linux, а не перечисляет настройки: после неё понятно, от чего именно защищает каждая мера. Рассчитана на инженеров и DevOps, работающих с контейнерами и Kubernetes; базовое знакомство с Linux предполагается. 📌 Ск…
🖥 Building Micro-Frontends: Distributed Systems for the Frontend, 2nd Edition. Luca Mezzalira. O'Reilly (2025) "Building Micro-Frontends" — перенос идей микросервисов на фронтенд: не архитектурная мода, а способ дать нескольким командам работать и выкатываться независимо. Рассчитана на фронтенд-архитекторов и лидов крупных команд; для небольшого проекта подход избыточен, и книга это проговаривает. Второе издание об…
🖥 Bug Bounty Bootcamp: The Guide to Finding and Reporting Web Vulnerabilities. Vickie Li. No Starch Press (2021) "Bug Bounty Bootcamp" — книга ведёт от подготовки рабочего окружения до сдачи первого отчёта, с упором на процесс, а не только на список уязвимостей. Порог входа невысокий: нужны понимание HTTP и базовые навыки работы с терминалом. Всё описанное применимо строго в рамках правил конкретной программы bug b…
Showing the 12 most recent of 163 posts we hold for @booki47. 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.
Forward network
Republishes
Channels on the register whose posts this channel has forwarded.
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 1 registered channel — 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.
Named by
Channels on the register whose posts name this channel's handle.
Names
Channels on the register whose handles appear in this channel's posts.
@aliexpress_prg · 21,6354 posts«Калория» — Счётчик калорий и КБЖУ
@CaloryzBot · 11,1761 postChatty - English Tutor
@ChattyEnglishBot · 63,4731 postПереходник для 1C JOBS
@it_match_1c_dev · 171 postAnalyst Jobs
@it_match_analyst · 71 postLumio Pay
@lumiopay · 1,2661 postPython Ready
@python_ready · 1001 postВайб-кодинг
@vibecoding_tg · 65,8841 post
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 16 October 2026 — this entry's latest reading, not the date you are reading this.
“Букич IT” (@booki47), 33,071 subscribers as measured 16 October 2026. Telegram Register, tgregister.com/channel/booki47.
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.