Understand response behaviorReview status, content type, cache directives, and available response metadata.
✦ Free SEO Tool
HTTP Header Checker
Check HTTP response headers, status codes, redirects, caching directives, and search engine header signals for any public URL.
Header Summary
Your header check starts here
Review the final HTTP status and safe response headers for webpages, files, and other public resources.
Check final destinationsSee the final URL and follow up on redirects when needed.
Spot crawler signalsReview X-Robots-Tag directives for pages and files.
How to use the HTTP Header Checker
Enter a public URLUse an HTTP or HTTPS resource URL.
Click Check HeadersSeolora follows available redirects.
Review the final responseConfirm status, URL, and content type.
Inspect detected headersReview cache and crawler directives.
Review warnings and notesUse the observations in context.
Frequently asked questions
What are HTTP response headers?+
They are response metadata that tell browsers, crawlers, and intermediary services how a resource should be handled.
How can I check the HTTP status of a URL?+
Enter a public URL. Seolora follows its available redirects and shows the final status returned by the Fetch Core.
What does Content-Type mean?+
It identifies the type of resource returned, such as HTML, XML, PDF, an image, JSON, or another file type.
What does Cache-Control do?+
It communicates how a response may be stored, reused, or revalidated by browsers and shared caches.
What is X-Robots-Tag?+
It is an HTTP header that can provide crawler directives such as noindex, including for resources such as PDFs.
Can X-Robots-Tag prevent a PDF from being indexed?+
Yes. A noindex directive in the header can tell search engines not to index a PDF or another non-HTML resource.
Why is Content-Length missing?+
It is optional. Streaming or chunked responses may not provide a Content-Length header.
What is the difference between HTTP headers and HTML meta tags?+
HTTP headers are sent with the response. HTML meta tags are part of an HTML document and do not exist for every resource type.
Can HTTP headers affect SEO?+
Status, redirects, content type, and crawler directives can affect how a resource is handled. Their effect depends on the resource and configuration.
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