Sitemap Generator Guide: Help Search Engines Find Important Pages

Include canonical, indexable pages:

• Homepage.
• Main landing pages.
• Blog posts.
• Product pages.
• Documentation pages.
• Category pages with useful content.
• Important tool or app pages.
• Localized pages when properly configured.

Each URL should return a successful response, be canonical, and be worth indexing.

What to Exclude#

Do not include:

• 404 pages.
• Redirecting URLs.
• Duplicate URLs.
• Internal search results.
• Filter combinations with thin content.
• Private pages.
• Staging URLs.
• Admin pages.
• URLs blocked by robots.
• Noindex pages.

If you tell crawlers a URL matters while also blocking or noindexing it, you create conflicting signals.

Keep URLs Canonical#

Sitemaps should use the canonical version of each URL.

Avoid mixing:

• HTTP and HTTPS.
• Trailing slash and non-trailing slash when one redirects.
• www and non-www.
• Tracking parameters.
• Uppercase and lowercase variants.

Consistency helps search engines understand the preferred URL.

Last Modified Dates#

lastmod can be useful when accurate. It should change when the page content meaningfully changes, not every time a build runs.

Bad lastmod behavior:

• Updating all URLs on every deploy.
• Using future dates.
• Setting the same date forever.

Better:

• Use the article update date.
• Use product update date.
• Use actual content modification time.

Accuracy builds trust with crawlers.

Large Sites#

Large sites may need multiple sitemap files and a sitemap index.

Group by:

• Content type.
• Locale.
• Product category.
• Date range.
• Section.

This makes debugging easier. If one sitemap has problems, you can isolate the affected section.

Sitemaps and Internal Links#

A sitemap does not replace internal linking. If a page is in the sitemap but no important page links to it, search engines may treat it as less important.

Use both:

• Sitemap for discovery.
• Internal links for context and importance.

For blog content, link related guides together. For tools, link tutorials to the tool pages they support.

Validation Checklist#

Before submitting a sitemap:

1. Confirm URLs are absolute.
2. Confirm URLs return 200.
3. Remove redirects.
4. Remove noindex pages.
5. Remove blocked URLs.
6. Check canonical consistency.
7. Validate XML.
8. Keep file size within limits.
9. Submit in search console tools when appropriate.

Common Mistakes#

Including every URL. More is not better if pages are low value.

Listing redirected URLs. List the final canonical URL.

Including private pages. Sitemaps are public.

Using stale URLs. Remove deleted content.

Relying only on sitemap discovery. Internal links still matter.

The Bottom Line#

A sitemap is a clean index of the pages you want crawlers to discover. Keep it accurate, canonical, and focused on pages that deserve search visibility.

Good sitemaps do not force ranking. They remove confusion.