Official source
301, 302, 307, 308: Which redirect is the chosen one?
Gary Illyes and Cherry Prommawin explain what separates a 301 from a 302 redirect, what 307 and 308 are, and whether any of it affects canonicalisation.
Topic
Redirects
5 videos.
Moving a page leaves a gap at its old address. A redirect fills that gap by sending visitors and crawlers to the new one. The status code tells them what kind of move it is, with 301 and 308 for permanent moves and 302 and 307 for temporary ones.
Google's Gary Illyes and Cherry Prommawin discuss the differences in 301, 302, 307, 308: Which redirect is the chosen one?, including whether the choice affects canonicalisation. Planning a move? SEO & Site Migrations: Common Pitfalls To Avoid has a consultant going through myths and real cases.
The beginner tutorials from 2014 and 2018 each come from a company promoting its own material. Google's redirect guide is the place to confirm anything they say.
Trade press or conference
SEO & Site Migrations: Common Pitfalls To Avoid
SEO site migrations can bring stress and ranking worries, and consultant Arnout Hellemans tells host Loren Baker about common myths and real cases of what not to do.
Older: check current guidanceOfficial source
Curing crawling chaos
Crystal Carter talks with Martin Splitt about a site that no crawling tool could crawl fully, the steps and tools used to fix it, and how monitoring can head it off.
Older: check current guidanceSells in this field
HTTP Status Code 301: What Is a 301 Redirect?
What does a 301 redirect do, and how do HTTP status codes pass information between servers, browsers and search engines? A short basic explanation, with a free cheatsheet on offer.
Older: check current guidanceSells in this field
How to do a 301 Redirect for SEO & Why
Pages that move need 301 redirects, and a 2014 tutorial walks through how they work and why they matter for SEO, with a forum post promised for more detail.
Older: check current guidance
