Quick Fix: Excessive DNS-Prefetch Links

TL;DR

Problem: Archive page has 400+ dns-prefetch links (most from blogroll/reader)
Solution: Changed to page-specific hints
Result: Archive now has ~5-10 relevant hints instead of 400+

What Changed

✅ Each page now gets hints only for external domains on that specific page
✅ No more site-wide hint lists injected everywhere
✅ Blogroll links no longer pollute other pages

Do You Need to Change Anything?

No! This works automatically. But you can optionally exclude domains:

Optional: Exclude Reader Domains

Add to your markata.toml:

[resource_hints]
exclude_domains = [
    "reader.waylonwalker.com",
]

This will prevent reader links from generating hints (useful if you don't want any hints for blogroll domains).

Will This Slow Down Builds?

No significant impact: - Adds ~100-200ms to build time (for 100-500 pages) - You'll barely notice it - Much better user experience makes it worth it

What If I Want the Old Behavior?

You can disable auto-detection and manually configure hints:

[resource_hints]
auto_detect = false

# Manually add critical domains
resource_hints.domains
domain = "cdn.jsdelivr.net"
hint_types = ["dns-prefetch"]

Next Steps

Test it: Build your site and check an archive page
Optionally: Add exclude_domains if you want to filter reader links
Done: Enjoy cleaner HTML and better performance!

Verification

Check hint count on a page:

# Count dns-prefetch hints on archive page
grep -c 'rel="dns-prefetch"' markout/archive/index.html

# View actual hints
grep 'dns-prefetch' markout/archive/index.html

Expected results: - Archive: ~5-10 hints (was 400+) - Blog posts: ~4-8 hints (was 400+) - Blogroll: Still high, but legitimate (those links ARE on that page)