webvpf / wn-trafficadvice-plugin
Plugin for managing the amount of preload traffic. Generates a JSON response to: /.well-known/traffic-advice
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Type:winter-plugin
README
A plugin for Winter CMS that adds to the site the page /.well-known/traffic-advice
with a JSON response containing instructions for preloading the site in the Chrome browser when it appears in Google search.
Installation Сomposer:
composer require webvpf/wn-trafficadvice-plugin
For what
If your site has search traffic from Google, then by turning on “Save failed requests” in the settings, you will see that your site receives a large number of requests for the address https://example.com/.well-known/traffic-advice
This is a Google proxy server that requests instructions for preloading the site, so that when the user leaves the search, the site page loads as quickly as possible.
Instead of instructions, the Google proxy server receives a 404 error, and Winter CMS records an error log (if enabled in the settings).
Traffic control
You can use the traffic advice's fraction
field to control how much traffic the Private Prefetch Proxy should let through. You can start with a small fraction such as 0.3 (that is, 30%), and gradually increase it to 1.0 (that is, 100%) by adding the following JSON to a /.well-known/traffic-advice
file, which needs to be served with the application/trafficadvice+json
MIME type:
[{ "user_agent": "prefetch-proxy", "fraction": 0.3 }]
The fraction
field is a float between 0.0 (no prefetch at all) and 1.0 (100% of the prefetch requests get through).
It is also possible to disable this completely with the following configuration:
[{ "user_agent": "prefetch-proxy", "disallow": true }]
See more details https://developer.chrome.com/blog/private-prefetch-proxy/#traffic