Technical SEO API

Run a full technical SEO audit on any URL with a single API call. 27 on-page checks across 7 categories — meta tags, headings, links, images, content quality, URL structure, and social tags. Get a scored report with critical, warning, and notice level issues.

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27 SEO Checks 7 Categories Score 0-100

Python API Example

import requests

response = requests.post(
    "https://data.semust.com/v1/technical-seo",
    headers={
        "SEMUST-API-USER": "your_username",
        "SEMUST-API-PASSWORD": "your_password",
    },
    json={
        "url": "https://example.com",
    },
)

if response.status_code == 200:
    data = response.json()
    summary = data.get("summary", {})
    print(f"Score: {summary.get('score', 0)}/100")
    print(f"Issues: {summary.get('total_issues', 0)} total")
    print(f"  Critical: {summary.get('critical_issues', 0)}")
    print(f"  Warning: {summary.get('warning_issues', 0)}")
    print(f"  Notice: {summary.get('notice_issues', 0)}")

Meet Semust, trusted by 4000+ brands.

Comprehensive Audit

27 on-page SEO checks covering meta tags, headings, links, images, content, URL analysis, and social tags in a single request.

Severity Levels

Every issue is classified as critical, warning, or notice — so you know exactly what to fix first for maximum SEO impact.

Auto Refund

Credits are automatically refunded if the audit fails — you only pay for successful results.

What Can You Do with Technical SEO API?

Audit any URL via data.semust.com/v1/technical-seo endpoint.

Check title tag length, meta description, canonical URL, viewport, robots directives, hreflang implementation, and noindex conflicts. Catch the most common on-page SEO issues that affect indexing and rankings.

{
  "meta": {
    "title": {
      "status": "fail",
      "severity": "warning",
      "issue": "long_title",
      "data": {
        "title": "Very Long Page Title...",
        "length": 66
      }
    },
    "meta_description": {
      "status": "pass",
      "severity": "warning",
      "data": {
        "meta_description": "Page description...",
        "length": 93
      }
    },
    "canonical_url": {
      "status": "pass",
      "severity": "warning",
      "data": {
        "current_url": "https://example.com",
        "canonical_url": "https://example.com"
      }
    },
    "robots_noindex": {
      "status": "pass",
      "severity": "critical",
      "data": {}
    }
  }
}

One platform,Organic success stories:

Batuhan Durmaz

SEO Specialist

SEMUST is a powerful tool for SEO professionals. It provides valuable data in a simple and easy‑to‑understand format, making it a great choice for both local and global projects. I use it for keyword analysis, Google Search Console data, ranking tracking, and content creation. I'm very satisfied with it.

Selen Çetin

SEO Specialist

I first came across Semust on LinkedIn, back when it was just starting to gain attention. Curious, I decided to give it a try—and it’s now become one of my favorite tools. What I appreciate most is how it handles many tasks that I used to perform manually with a single click, which makes my job significantly easier. Seeing how quickly it has evolved since the first time I used it also inspires confidence.

Aykut Özcan

SEO Director – SERPECT

At Serpect SEO Agency, we rely heavily on the analysis and reporting tools Semust provides throughout our SEO workflows. From keyword tracking and competitor analysis to site‑health scans and backlink audits, it brings both speed and depth to many critical areas. Thanks to the comprehensive, data‑driven insights it offers, we consistently boost our clients' search‑engine performance. Semust is a powerful partner on our agency's growth journey.