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There is a "back-channel" way for most sites: sitemap.xml

Many sites have it, since it is helpful for SEO. Examples:

Sadly, sitemaps aren't usually much help because:

- They're often only URL's which may not have titles or dates at all

- They're often not in any particular order (there's no reason for them to be chronological, so they frequently aren't)

- They're often paginated as well, where sitemap.xml just refers to multiple <sitemapindex> pages, so you can't Ctrl+F on a single page anyways

- You don't get one per-blog if there are multiple blogs on a domain

- You get all the other junk from the rest of a site if it's a blog that's part of a larger site