Free Link Checker API - Validate URLs

Parameters

name	in	type	required	description
`url`	query	string	required	Url

Request

Send your key in the X-API-Key header. More languages and patterns live on the code examples page.

curl -s "https://apixies.io/api/v1/check-link?url=https%3A%2F%2Fdocs.github.com" \
  -H "X-API-Key: YOUR_API_KEY"

const res = await fetch("https://apixies.io/api/v1/check-link?url=https%3A%2F%2Fdocs.github.com", {
  headers: { "X-API-Key": "YOUR_API_KEY" }
});
const data = await res.json();
console.log(data);

$ch = curl_init("https://apixies.io/api/v1/check-link?url=https%3A%2F%2Fdocs.github.com");
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => ["X-API-Key: YOUR_API_KEY"],
]);
$data = json_decode(curl_exec($ch), true);
curl_close($ch);

print_r($data);

import requests

res = requests.get(
    "https://apixies.io/api/v1/check-link",
    params={"url": "https://docs.github.com"},
    headers={"X-API-Key": "YOUR_API_KEY"},
)
print(res.json())

Response

The result sits under data in the standard envelope. See the response format guide for errors and status codes.

returns

data.status_code: HTTP status the URL answered with, or null if unreachable.
data.reachable: True for 2xx and 3xx responses.
data.response_time_ms: How long the request took, in milliseconds.
data.content_type: Content-Type header of the response.
data.server: Server header, when the site sends one.
data.ssl: True when the URL uses HTTPS.

example response 200

{
    "status": "success",
    "http_code": 200,
    "code": "SUCCESS",
    "message": "Link check completed",
    "data": {
        "url": "https://github.com",
        "reachable": true,
        "status_code": 200,
        "content_type": "text/html; charset=utf-8",
        "server": "github.com",
        "response_time_ms": 113,
        "ssl": true,
        "checked_at": "2026-09-18T12:00:00+00:00"
    }
}

Authentication and limits

This endpoint needs an API key. Use the sandbox ("try it" above) to test it without registering. See the authentication guide for details.

Standard rate limits apply to this endpoint.

Common use cases

Broken link detection

Scan your website for broken outbound links. Identify 404s, timeouts, and unreachable URLs before they frustrate users or hurt SEO.

Uptime monitoring

Build a lightweight uptime monitor by periodically checking critical URLs. Track response times and detect outages in real-time.

Content validation in CMS

Validate that URLs entered by content editors are reachable before publishing. Prevent broken links from going live on your site.

related endpoints

GET Redirect Tracer Follow a URL's redirect chain and report each hop with status code GET SSL Health Inspector Inspect SSL certificate details for a domain, including validity, expiry and chain health GET Meta Tag Extractor Extract OpenGraph, Twitter Card, and standard meta tags from any URL

guides

Link Checker API Tutorial tutorial Check if URLs are alive with the Apixies Link Checker API. Get status codes, response times, redirects, and SSL info. Fr... Broken Link Monitoring for SEO use-case Find and fix broken links before they hurt your SEO. Automated scripts to check sitemaps, outbound links, and track link...

getting started

authentication code examples response format

explore

all api endpoints guides and tutorials online tools

resources

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