Technical Articles

Every article in this section is written for the reader who wants to understand exactly what is happening on the wire when a Telegram MTProto proxy connects, why the modern "ee" Fake-TLS prefix is harder to fingerprint than the legacy MTProto v1 byte pattern, and how the various deep-packet-inspection systems deployed by national ISPs actually attempt to identify and block proxy flows. The material is engineering-grade rather than marketing — we publish the byte layout of the MTProto 2.0 secret, the structure of the Fake-TLS handshake including the SNI rotation strategy and the certificate exchange, the differences between the obfuscated TCP transport and the older HTTP-style transport, and the trade-offs that drive the choice of high-numbered random ports over the obvious 443 / 80 picks that most blocked-VPN tutorials recommend.

The deep dives also compare MTProto with the other circumvention protocols you are likely to have heard of — SOCKS5, Shadowsocks, V2Ray's VMess and VLESS, Trojan, WireGuard, and the legacy OpenVPN — and explain in plain language why MTProto consistently outlasts them in the most aggressively filtered networks. The short answer is that MTProto is Telegram's native protocol, so the traffic profile inside the encrypted tunnel matches what the carrier expects to see when a real Telegram client talks to a real Telegram CDN. The longer answer involves a discussion of timing analysis, packet-size distributions, handshake fingerprinting, and the reality that any protocol distinct enough to be detected as "circumvention software" eventually becomes the focus of an arms race that the protocol typically loses. MTProto wins by hiding inside Telegram's own traffic shape rather than by trying to look like something else entirely.

Beyond the protocol-level material, this hub also publishes operator-side technical content: how TGFast picks where to place new servers based on probe-network latency measurements from inside restricted regions, why we rotate IPs on a schedule that ISPs have not been able to track, how the modern monitoring stack identifies a fresh block within minutes rather than hours, what happens during an active-probing event from inside the network of a major Iranian or Chinese carrier, and how we balance the competing requirements of low latency, sustained throughput, and obfuscation strength when allocating bandwidth between our public proxy fleet (our proxy fleet). If you are running your own MTProto proxy infrastructure for a community or organisation, several of these articles also work as design references — the threat model and architectural choices that make TGFast survive in Iran and China are equally applicable to a smaller deployment built around a single VPS.

Read the articles below in any order; each one stands on its own. If you are new to MTProto, start with the protocol-fundamentals piece and work outward; if you are debugging a specific symptom on a specific network, jump straight to the relevant deep dive and use the article-level FAQ at the bottom of each page to answer the most common follow-up questions.