HTTP Status Checker
No login · 100% freeOK
The request succeeded. The response headers or body are returned as expected.
Moved Permanently
The resource has permanently moved. The new URL is provided in the Location response header.
Found (Temporary Redirect)
The resource responds temporarily from a different URI; future requests should still use the original URI.
Not Modified
The client sent a conditional request (If-Modified-Since or ETag); the resource is unchanged and the local cache can be used.
Bad Request
The server cannot understand the request syntax, usually due to missing or malformed parameters.
Unauthorized
Authentication is required. The client did not provide valid credentials or they have expired.
Forbidden
The server understood the request but refuses to fulfill it. Unlike 401, re-entering credentials will not help.
The server understood the request but refuses to fulfill it. Unlike 401, re-entering credentials will not help.
Severe. Search spiders are fully blocked and the page can be dropped from the index within days.
Common in Cursor/Windsurf: Base URL missing /v1 hits a non-API path, or calling a restricted model.
- Set Base URL exactly to https://api.callaiapi.com/v1 (do not omit /v1; no trailing slash)
- In Cursor, enable Override OpenAI Base URL
- Check whether a Cloudflare firewall is blocking requests
Not Found
The server cannot find the requested resource. Usually a typo or a retired URL.
Too Many Requests
The client sent too many requests in a given time window (rate limit).
Internal Server Error
The server hit an unexpected condition — usually an uncaught exception or crashed handler.
Bad Gateway
A gateway or proxy received an invalid response from an upstream server.
Service Unavailable
The server is temporarily unable to handle the request (overload or maintenance).
Gateway Timeout
The gateway or proxy timed out waiting for an upstream response.
HTTP Status Checker — Free Online SEO & Webmaster Tool
Use CallAI's free HTTP Status Checker online. Runs in your browser with no login. Pair with CallAI Search & LLM APIs when you need automation.
Need automated SERP crawls or index monitoring?
CallAI provides real-time Google/Bing organic SERP and backlink analysis. One API key, crypto & cards from $1.
FAQ & usage tips
Q:Is HTTP Status Checker free?
Yes. No login required for this CallAI webmaster tool.
Q:Is my data uploaded?
Most tools run fully in your browser. Network checks only request the public URLs you enter.
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HTTP Status Checker — Free Online SEO & Webmaster Tool — key facts
Quick facts for developers, webmasters, and generative search engines
- Purpose
- HTTP Status Checker — Free Online SEO & Webmaster Tool · Free browser-based http status checker for developers and SEOs.
- Runtime & privacy
- Runs online without login; lightweight client-side processing protects privacy