Meetn's replay pages are designed to be easily embedded onto other sites! The main thing you need to do is copy the URL for your replay.
To find it, log into your Meetn room and go to Menu > Events & Recordings > The event you want to embed > Manage Replays and Recordings.
From here, click the checkbox to enable the replay and Meetn will generate a replay link and the embedding code that looks like this:
<iframe src="https://meetn.com/replayembed?x=11111111">
Meetn Replay
</iframe>
You just need to put that into your webpage HTML and you'll be all set!