Every few weeks someone searches some variant of this and lands on a blog post from 2017 that says "you can't - Telegram history is private." That answer is wrong, incomplete, and expensive to believe, so here's the definitive short version. What is public: any channel (not group) has a public web preview at t.me/s/<channelname> . It renders the last ~20 posts as plain HTML - no login, no API key, no rate limit that matters for human-scale browsing. Each post carries a data-post="&l...