Implement sitemaps for section pages, tag pages and older articles

[SiAdcock]

From the SEO audit:

Currently theguardian.com only has two XML sitemaps submitted to Google Search Console: one for the latest news articles in a news XML sitemap, and another for recent video pages:
There are no XML sitemaps for your section and tag pages, nor for articles that are older than 48 hours. This means we do not have visibility in Google Search Console on the level of indexing of most of the site’s content and any issues that may exist with these pages.
Recommendation:
Implement XML sitemaps beyond the existing XML sitemaps. You should have standard XML sitemaps for your tag pages and all your older articles. These can be spread out over multiple XML sitemaps, each containing a maximum of 1000 URLs, so that you have full visibility in Google Search Console’s reports (as these are limited to 1000 example URLs per report).
Ideally these XML sitemaps are automatically updated when you add or change a page on the site, so that Google always has up to date information about your site’s active pages and their last modified date (the attribute in your XML sitemaps).
The and attributes that are part of the XML sitemaps standard are ignored by Google and can safely be omitted from your XML sitemaps.
More details on XML sitemaps can be found on Google’s developer site here:
https://developers.google.com/search/docs/crawling-indexing/sitemaps/build-sitemap