Why is this important?
Rendering webpages is a resource intensive task, and it takes significantly longer than simply grabbing source (response) HTML content.
This is why Google essentially crawl URLs in a two-stage process: their 'first look' is of the HTML response, then they render the page and have a 'second look' at the rendered HTML, then they update the index based on what they found in the rendered HTML.
When Google crawl new pages, they initially parse the response HTML and collect links to add to the crawl queue, before rendering occurs - so if links are not present in the response HTML, this may slow down how quickly Google finds and indexes the linked URLs.
What does the Hint check?
This Hint will trigger for any internal URL that contains links that are present in the rendered HTML but not in the response HTML.
Examples that trigger this Hint
This Hint will trigger for any URL that has one or more hyperlinks in the rendered HTML, that are not present in the response HTML.
For example, if the response HTML looked like this:
And the rendered HTML looked like this:
How do you resolve this issue?
To explore these further, you can also use the Response vs Render report:
The options we have for this column are as follows:
So the Link Explorer allows you to interrogate the data en masse, and if you want to zone in on particular URLs or particular links, you can also see the data listed on the URL Details page.
On both the outgoing links:
And on the incoming links:
Independent of any audit, if you want to evaluate a single page, this data is also available in the Single Page Analyser: