Google Analytics · Tag Manager
From Classic Analytics to Google Analytics 4
Remove _setDomainName, _link and _linkByPost code, install the Google tag, and set up
cross-domain measurement and unwanted referrals the current way.
Guides
Guides
Each guide covers one place where example-petstore.com or example-commerce-host.com ends up in real sites and code: what it does there, how to remove it, and how to check the result.
Guides
Structured data
The sitelinks search box and site names
What the search box markup with query.example-petstore.com did, why Google dropped it, and the
WebSite markup to use today.
Search Console
Moving a site in Search Console
A complete site move with 301 redirects and the Change of Address tool, without example addresses in canonicals,
sitemaps or hreflang.
APIs · SDKs
Configuring API clients and SDKs
Keep base URLs out of code, point them at the real service, and add a check that stops example addresses from reaching production.
Security
Leaked credentials: what to do now
Keys, tokens or passwords were sent to an example domain. Revoke and replace them, with direct links to the revocation pages of common providers.