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What Belongs in an XML Sitemap?
Learn which canonical and indexable URLs belong in an XML sitemap and why redirects, duplicates, noindex pages and error responses should usually be excluded.
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Technical SEO guides for crawlable, understandable websites.
Practical explanations of crawling, indexing, sitemaps, site architecture, and repeatable technical checks.
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Can Pages Blocked by Robots.txt Still Appear in Search?
Understand why a URL blocked from crawling can still appear in search results and why robots.txt should not be treated as a dependable noindex method.
How to Check If Search Engines Can Crawl a Page
Learn how to test crawl access by checking HTTP responses, robots.txt rules, redirects, internal links, login barriers and JavaScript-rendered content.
Crawling vs Indexing: How Search Engines Process Web Pages
When a page fails to appear in search results, crawling is only one possible issue. This guide explains discovery, crawling, rendering, canonical selection and indexing as separate stages.
Sitemap Lastmod Best Practices
Understand how to use sitemap lastmod dates accurately and why automatic or misleading timestamps can reduce their usefulness.
XML Sitemap Basics
Learn how XML sitemaps are structured, what they communicate to search engines, and when a website should use one.
Common Robots.txt Mistakes and How to Avoid Them
Review common robots.txt configuration errors that can block important content, waste crawl activity, or create misleading indexing expectations.
Robots.txt Explained
A clear guide to robots.txt files, how crawler rules work, and what site owners should know before blocking URLs.
Crawlability vs Indexability: What’s the Difference?
Understand the difference between pages that search engines can crawl and pages that they may choose to index.
What Is Crawlability?
Learn what crawlability means, why it matters for search engines, and how a website can make important pages easier to find.