SEO Quick Validator API

Overview

To use SEO Quick Validator, you need an API key. You can get one by creating a free account and visiting your dashboard.

POST Endpoint

https://api.apiverve.com/v1/seovalidator

Example

How to call the SEO Quick Validator API in different programming languages.

curl -X POST \
  "https://api.apiverve.com/v1/seovalidator" \
  -H "X-API-Key: your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
  "url": "https://apiverve.com"
}'

const response = await fetch('https://api.apiverve.com/v1/seovalidator', {
  method: 'POST',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    "url": "https://apiverve.com"
})
});

const data = await response.json();
console.log(data);

import requests

headers = {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
}

payload = {
    "url": "https://apiverve.com"
}

response = requests.post('https://api.apiverve.com/v1/seovalidator', headers=headers, json=payload)

data = response.json()
print(data)

package main

import (
    "fmt"
    "io"
    "net/http"
    "bytes"
    "encoding/json"
)

func main() {
    payload := map[string]interface{}{
        "url": "https://apiverve.com"
    }

    jsonPayload, _ := json.Marshal(payload)
    req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/seovalidator", bytes.NewBuffer(jsonPayload))

    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

{
  "status": "ok",
  "error": null,
  "data": {
    "url": "https://apiverve.com",
    "passed": false,
    "issueCount": 6,
    "issues": [
      "Image missing 'alt' attribute: '/assets/img/hero-diagram.png'",
      "Image missing 'alt' attribute: '/assets/img/logo-mark.svg'",
      "External link missing 'rel' attribute: 'https://twitter.com/apiverve'",
      "External link missing 'rel' attribute: 'https://github.com/apiverve'",
      "External link missing 'rel' attribute: 'https://status.apiverve.com'",
      "Missing meta 'keywords' tag in head"
    ],
    "checks": {
      "hasTitle": true,
      "titleLength": 54,
      "hasMetaDescription": true,
      "metaDescriptionLength": 158,
      "hasMetaKeywords": false,
      "h1Count": 1,
      "hasCanonical": true,
      "hasViewport": true,
      "imagesTotal": 8,
      "imagesMissingAlt": 2,
      "externalLinksTotal": 10,
      "externalLinksMissingRel": 3
    },
    "seoScore": 93,
    "grade": "A"
  }
}

Authentication

The SEO Quick Validator API requires authentication via API key. Include your API key in the request header:

X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the SEO Quick Validator API directly in your browser with live requests and responses.

Parameters

The following parameters are available for the SEO Quick Validator API:

Response

The SEO Quick Validator API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.

Other Response Formats

<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <url>https://apiverve.com</url>
    <passed>false</passed>
    <issueCount>6</issueCount>
    <issues>
      <issue>Image missing &apos;alt&apos; attribute: &apos;/assets/img/hero-diagram.png&apos;</issue>
      <issue>Image missing &apos;alt&apos; attribute: &apos;/assets/img/logo-mark.svg&apos;</issue>
      <issue>External link missing &apos;rel&apos; attribute: &apos;https://twitter.com/apiverve&apos;</issue>
      <issue>External link missing &apos;rel&apos; attribute: &apos;https://github.com/apiverve&apos;</issue>
      <issue>External link missing &apos;rel&apos; attribute: &apos;https://status.apiverve.com&apos;</issue>
      <issue>Missing meta &apos;keywords&apos; tag in head</issue>
    </issues>
    <checks>
      <hasTitle>true</hasTitle>
      <titleLength>54</titleLength>
      <hasMetaDescription>true</hasMetaDescription>
      <metaDescriptionLength>158</metaDescriptionLength>
      <hasMetaKeywords>false</hasMetaKeywords>
      <h1Count>1</h1Count>
      <hasCanonical>true</hasCanonical>
      <hasViewport>true</hasViewport>
      <imagesTotal>8</imagesTotal>
      <imagesMissingAlt>2</imagesMissingAlt>
      <externalLinksTotal>10</externalLinksTotal>
      <externalLinksMissingRel>3</externalLinksMissingRel>
    </checks>
    <seoScore>93</seoScore>
    <grade>A</grade>
  </data>
</response>

status: ok
error: null
data:
  url: https://apiverve.com
  passed: false
  issueCount: 6
  issues:
    - 'Image missing ''alt'' attribute: ''/assets/img/hero-diagram.png'''
    - 'Image missing ''alt'' attribute: ''/assets/img/logo-mark.svg'''
    - 'External link missing ''rel'' attribute: ''https://twitter.com/apiverve'''
    - 'External link missing ''rel'' attribute: ''https://github.com/apiverve'''
    - 'External link missing ''rel'' attribute: ''https://status.apiverve.com'''
    - Missing meta 'keywords' tag in head
  checks:
    hasTitle: true
    titleLength: 54
    hasMetaDescription: true
    metaDescriptionLength: 158
    hasMetaKeywords: false
    h1Count: 1
    hasCanonical: true
    hasViewport: true
    imagesTotal: 8
    imagesMissingAlt: 2
    externalLinksTotal: 10
    externalLinksMissingRel: 3
  seoScore: 93
  grade: A

Response Structure

All API responses follow a consistent structure with the following fields:

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

Headers

Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →

GraphQL AccessALPHA

Access SEO Quick Validator through GraphQL to combine it with other API calls in a single request. Query only the seo quick validator data you need with precise field selection, and orchestrate complex data fetching workflows.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

POST https://api.apiverve.com/v1/graphql

query {
  seovalidator(
    input: {
      url: "https://apiverve.com"
    }
  ) {
    url
    passed
    issueCount
    issues
    checks {
      hasTitle
      titleLength
      hasMetaDescription
      metaDescriptionLength
      hasMetaKeywords
      h1Count
      hasCanonical
      hasViewport
      imagesTotal
      imagesMissingAlt
      externalLinksTotal
      externalLinksMissingRel
    }
    seoScore
    grade
  }
}

Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.

CORS Support

The SEO Quick Validator API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →

Rate Limiting

SEO Quick Validator requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →

Error Codes

The SEO Quick Validator API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →

SDKs for SEO Quick Validator

Official SEO Quick Validator packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →

JitPack

No-Code Integrations

SEO Quick Validator works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →

Zapier

Make

Pipedream

n8n

Power Automate

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