CrawluneOpportunity · Content
Doctype missing
Why it matters
Without a doctype browsers use quirks mode, which causes rendering differences.
How to fix it
Add <!DOCTYPE html> as the first line.
How Crawlune finds it
Crawlune flags Doctype missing automatically on every crawl and lists the affected URLs under theContent tab, where you can filter, inspect each page and export the list to CSV. The free version crawls up to 500 URLs with every check enabled.
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