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Channel

21dev team

@dev21team

On this record: Topic · Growth · Engagement · Reactions · Posts · Citations · Cite this entry

110subscribers

-5 since we began measuring on 7 September 2026

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

Register entry

Telegram ID-1002762015413
TypeChannel
Username@dev21team
Created2 July 2025 — measured — dated from the channel’s first post
First recorded9 September 2026
Last confirmed live4 October 2026
Measurements held5
Confirmed unchanged1 time, most recently 4 October 2026
On Telegramt.me/dev21team

Topic

Crypto & trading — 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 4 October 2026 and assigned it the closest of 31 fixed categories, at 44% 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

110115112.57 September 2026 — 115 subscribers9 September 2026 — 115 subscribers10 September 2026 — 114 subscribers18 September 2026 — 111 subscribers4 October 2026 — 110 subscribers7 September 20264 October 2026
5 measurements spanning 27 days, net -5. 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 109–116 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)SubscribersChange
4 Oct 2026, 06:36110-1
18 Sept 2026, 16:21111-3
10 Sept 2026, 11:41114-1
9 Sept 2026, 23:22115no change
7 Sept 2026, 15:47115first reading

Engagement

19 posts held, back to 2 July 2025 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 1 page of 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 19 posts for this entry, the most recent from 3 March 2026. An engagement rate over an empty window would be a number about nothing.

Reaction mix

2 reactions across 1 post, in 1 kind.

Every reaction kind recorded on the sample, most used first
ReactionCountShareShare, drawn
❤2100.0%

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 1 of the 19 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 2 reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.

Measured over the 19 most recent posts we hold, published 2 July 2025 to 3 March 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

3 Mar 2026, 00:34 UTC542 viewsread 9 September 2026

سلام چت! تستش کنید👇🏻 @polymarketcopytrader_bot کلید رایگان برای فعال سازیش‌ : 🔑 Key: GKYCLq9d4f7Vycz1 👥 User can connect: 9 ⏳ Time: 7 days ۹ نفر اولی که این کلید رو استفاده کنند رایگان‌ میتونند‌ ۷ روز از ربات استفاده کنن. یکی از خفن ترین پروژه هاییه‌ که تاحالا ساختم فقط کافه همراه تاپ تریلر ها buy&sell کنی توی این هفته که تستش کردم ۸۵۸.۴۱ دلار تونستیم باهاش پول بسازیم💵

18 Feb 2026, 11:54 UTC670 viewsread 9 September 2026
Photo

December 30 2022 - OG یکی از قدیمی ترین نسخه های راتی‌ که نوشتنش‌ توسط من انجام نشده بود صرفا ادیت‌ کامپایلش‌ توسط من انجام شده بود چیز جالبی که توی این رات دیدم یوزر اگنت‌ بود ، چیزی که خیلی از رات های امروزی که ندارن و توی فکرم بود رات فعلی تیم رو اپدیت کنیم تا بتونیم یوزر اگنت‌ رو بگیریم ، خیلی کمک میکنه تا مدل دقیق موبایل و فایربیسش‌ رو استخراج کرد و دقیق بتونیم تمام سیستم های امنیتشو دور بزنیم تا بتونیم بهترین ن…

10 Feb 2026, 23:34 UTC637 viewsread 9 September 2026

خود این پروژه ازم ۱۳ ساعت وقت گرفت ، نوشتن این مقاله ۱۴ ساعت😂

10 Feb 2026, 23:33 UTC643 viewsread 9 September 2026

توسعه و پیاده‌سازی ابزارهایی مبتنی بر Cheat Engine با استفاده از زبان پایتون، در عمل فرآیندی فرساینده و به‌شدت چالش‌برانگیز است. پیچیدگی‌های فنی این مسیر به‌قدری بالاست که حتی پس از چندین مرتبه بازنویسی و به‌روزرسانی کد—در تجربه‌ی ما بیش از ۹ بار—تنها موفق شدیم برنامه را به‌صورت پایدار اجرا کرده و از مرحله‌ی شناسایی اولیه توسط سیستم ضدتقلب عبور کنیم. در این مسیر، حدود ۱۳ ساعت صرف دیباگ (Debugging) شد؛ فرآیندی که به …

8 Feb 2026, 18:11 UTC613 viewsread 9 September 2026

subdomain-finder What It Does Automatically? : When you run python3 main.py, it automatically: - Prompts: "Enter target domain (e.g. google.com):" - Queries passive sources (Certificate Transparency logs via crt.sh, DNS records A/AAAA/MX/NS/TXT/CNAME) - Runs bruteforce (5000+ common subdomains from wordlist) - Tests permutations (200+ subdomain patterns like www-dev, api-v1, staging-api) - Deduplicates all results …

8 Feb 2026, 02:19 UTC688 viewsread 9 September 2026
Photo

Just try my new bot It’s download any video from instagram ( without API key ) It’s work soo GOOD I test it more and when it’s ready to show I well public it AND u don’t need to $pay for API key 🙂

7 Feb 2026, 12:18 UTC79 viewsread 9 September 2026

فراموش نکنید که یک star این پروژه مارو‌ مهمون کنید 🤩⭐️

7 Feb 2026, 12:13 UTC879 viewsread 9 September 2026

autonomous-pentest What It Does Automatically? : Recon → Full nmap service discovery Enum → Gobuster/FFUF directory bruteforce + Nuclei vuln scan Exploit → AI crafts & executes exploit chains Report → Executive summary + technical report github download link ; https://github.com/21CasterisK/autonomous-pentest K* (;

5 Feb 2026, 22:50 UTC976 viewsread 9 September 2026

SQL Injection -> https://github.com/21CasterisK/SQL-Injection

5 Feb 2026, 21:57 UTC≈1,050 viewsread 9 September 2026
File

Campaign with Firebase C2 & Android 14 EDR Evasion Firebase Backend Proxy با تزریق کردن این اموزاشات و کد ها به بک اند باج افزار یا رات خودتون به راحتی میتوانید فایربیس اندروید های مدرن و روز دنیا یا را دور بزنید از جمله اندروید 14 و 16 این داکیومنت صرفا جنبه اموزشی دارد !

3 Feb 2026, 15:48 UTC116 viewsread 9 September 2026
File

How to perform a Server Side Request Forgery (SSRF) attack, blind Warning: The consequences of illegal use of this document are the responsibility of the person themselves.

Showing the 12 most recent of 19 posts we hold for @dev21team. 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

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.

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 4 October 2026 — this entry's latest reading, not the date you are reading this.

“21dev team” (@dev21team), 110 subscribers as measured 4 October 2026. Telegram Register, tgregister.com/channel/dev21team.

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.