Web Intelligence API

API ID 14313

Web Intelligence API audits websites, detects their tech stack, converts pages to Markdown, finds broken links and extracts text from PDFs with OCR, all with one key.

API Documentation

Endpoints

Request
Audit one website: HTTP status, redirects, SSL expiry, DNS/SPF/DMARC, security headers, SEO basics and a 0-100 score with prioritized issues.
Endpoint ID: 35875
GET https://zylalabs.com/api/14313/web+intelligence+api/35875/website+health+audit
INPUT PARAMETERS

Website Health Audit — Endpoint Features

Object Description
url Required Website URL or bare domain, e.g. "example.com". Example: example.com
check_dns Optional Check SPF / DMARC / MX / NS records (true or false). Default: true
check_ssl Optional Check TLS certificate validity and expiry (true or false). Default: true
check_seo Optional Check title, meta description, H1, robots.txt, sitemap (true or false). Default: true

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

url
check_dns
check_ssl
check_seo
API EXAMPLE RESPONSE
JSON
{
    "input": "example.com",
    "url": "https://example.com/",
    "host": "example.com",
    "checkedAt": "2026-10-17T10:54:30+00:00",
    "http": {
        "finalUrl": "https://example.com/",
        "status": 200,
        "redirectChain": [
            {
                "url": "https://example.com/",
                "status": 200
            }
        ],
        "responseTimeMs": 45,
        "contentType": "text/html; charset=utf-8",
        "bytes": 577
    },
    "securityHeaders": {
        "present": [],
        "missing": [
            "HSTS",
            "Content-Security-Policy",
            "X-Content-Type-Options",
            "X-Frame-Options",
            "Referrer-Policy",
            "Permissions-Policy"
        ],
        "server": "cloudflare",
        "xPoweredBy": null
    },
    "seo": {
        "title": "Example Domain",
        "titleLength": 14,
        "metaDescription": null,
        "metaDescriptionLength": 0,
        "canonical": null,
        "robotsMeta": null,
        "lang": "en",
        "viewport": "width=device-width,initial-scale=1",
        "h1Count": 0,
        "h1": [],
        "imagesTotal": 0,
        "imagesMissingAlt": 0,
        "openGraph": {
            "title": null,
            "description": null,
            "image": null
        },
        "favicon": true
    },
    "robotsTxt": {
        "url": "https://example.com/robots.txt",
        "status": 404,
        "found": false,
        "sitemaps": null
    },
    "sitemap": {
        "url": "https://example.com/sitemap.xml",
        "status": 404,
        "found": false,
        "sitemaps": null
    },
    "ssl": {
        "host": "example.com",
        "valid": true,
        "tlsVersion": "TLSv1.3",
        "issuer": "SSL Corporation",
        "subject": "example.com",
        "validFrom": "2026-09-26T22:49:11+00:00",
        "validTo": "2026-12-25T22:56:35+00:00",
        "daysUntilExpiry": 69,
        "subjectAltNames": [
            "example.com",
            "*.example.com"
        ]
    },
    "dns": {
        "A": [
            "104.20.23.154",
            "172.66.147.243"
        ],
        "AAAA": [
            "2606:4700:10::6814:179a",
            "2606:4700:10::ac42:93f3"
        ],
        "MX": [
            "0 ."
        ],
        "NS": [
            "elliott.ns.cloudflare.com",
            "hera.ns.cloudflare.com"
        ],
        "CAA": [],
        "spf": "v=spf1 -all",
        "dmarc": "v=DMARC1;p=reject;sp=reject;adkim=s;aspf=s",
        "txtCount": 2,
        "domain": "example.com"
    },
    "score": 62,
    "issues": [
        {
            "severity": "high",
            "code": "MISSING_HEADER",
            "message": "Missing security header: HSTS"
        },
        {
            "severity": "low",
            "code": "MISSING_HEADER",
            "message": "Missing security header: Content-Security-Policy"
        },
        {
            "severity": "low",
            "code": "MISSING_HEADER",
            "message": "Missing security header: X-Content-Type-Options"
        },
        {
            "severity": "low",
            "code": "MISSING_HEADER",
            "message": "Missing security header: X-Frame-Options"
        },
        {
            "severity": "low",
            "code": "MISSING_HEADER",
            "message": "Missing security header: Referrer-Policy"
        },
        {
            "severity": "low",
            "code": "MISSING_HEADER",
            "message": "Missing security header: Permissions-Policy"
        },
        {
            "severity": "low",
            "code": "NO_CAA",
            "message": "No CAA record restricting certificate authorities"
        },
        {
            "severity": "medium",
            "code": "NO_META_DESCRIPTION",
            "message": "No meta description"
        },
        {
            "severity": "medium",
            "code": "NO_H1",
            "message": "No <h1> heading"
        },
        {
            "severity": "low",
            "code": "NO_CANONICAL",
            "message": "No canonical link"
        },
        {
            "severity": "low",
            "code": "NO_ROBOTS_TXT",
            "message": "robots.txt not found"
        },
        {
            "severity": "low",
            "code": "NO_SITEMAP",
            "message": "No sitemap.xml found (and none declared in robots.txt)"
        }
    ],
    "issueCount": 12
}
Website Health Audit — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14313/web+intelligence+api/35875/website+health+audit?url=example.com' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Detect the CMS, frameworks, analytics, CDN, hosting and email providers of a website, with versions and confidence scores.
Endpoint ID: 35876
GET https://zylalabs.com/api/14313/web+intelligence+api/35876/tech+stack+detection
INPUT PARAMETERS

Tech Stack Detection — Endpoint Features

Object Description
url Required Website URL or bare domain, e.g. "example.com". Example: wordpress.org
min_confidence Optional Drop detections below this confidence (0-100). Default: 50
with_dns Optional Also use DNS records (email/DNS providers) (true or false). Default: true

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

url
min_confidence
with_dns
API EXAMPLE RESPONSE
JSON
{
    "input": "wordpress.org",
    "checkedAt": "2026-10-17T10:54:31+00:00",
    "finalUrl": "https://wordpress.org/",
    "status": 200,
    "redirectChain": [
        {
            "url": "https://wordpress.org/",
            "status": 200
        }
    ],
    "certIssuer": null,
    "technologyCount": 12,
    "categories": [
        "Blogs",
        "CMS",
        "Databases",
        "Font scripts",
        "Miscellaneous",
        "Page builders",
        "Performance",
        "Programming languages",
        "Reverse proxies",
        "Security",
        "Tag managers",
        "Web servers",
        "WordPress plugins"
    ],
    "technologies": [
        {
            "name": "WordPress",
            "version": "7.2",
            "confidence": 100,
            "categories": [
                "CMS",
                "Blogs"
            ],
            "website": "https://wordpress.org",
            "saas": true,
            "oss": true,
            "pricing": [
                "low",
                "recurring",
                "freemium"
            ],
            "cpe": "cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*",
            "detectedVia": [
                "headers",
                "meta",
                "scriptSrc"
            ]
        },
        {
            "name": "MySQL",
            "version": null,
            "confidence": 100,
            "categories": [
                "Databases"
            ],
            "website": "https://mysql.com",
            "saas": null,
            "oss": null,
            "pricing": [],
            "cpe": "cpe:2.3:a:mysql:mysql:*:*:*:*:*:*:*:*",
            "detectedVia": [
                "implied by WordPress"
            ]
        }
    ]
}
Tech Stack Detection — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14313/web+intelligence+api/35876/tech+stack+detection?url=wordpress.org' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Convert a web page into clean Markdown of its main content, with title, author, date and language, plus optional RAG chunks.
Endpoint ID: 35877
GET https://zylalabs.com/api/14313/web+intelligence+api/35877/page+to+markdown
INPUT PARAMETERS

Page to Markdown — Endpoint Features

Object Description
url Required Url option. Example: https://en.wikipedia.org/wiki/Markdown
mode Optional article = main content only; full = whole page (one of: article, full). Default: article
include_links Optional Include links (true or false). Default: true
include_images Optional Include images (true or false). Default: false
include_tables Optional Include tables (true or false). Default: true
chunk_size Optional If > 0, also return RAG chunks of at most this many characters (0-20000). Default: 0
chunk_overlap Optional Chunk overlap (0-2000). Default: 200

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

url
mode
include_links
include_images
include_tables
chunk_size
chunk_overlap
API EXAMPLE RESPONSE
JSON
{
    "url": "https://en.wikipedia.org/wiki/Markdown",
    "finalUrl": "https://en.wikipedia.org/wiki/Markdown",
    "statusCode": 200,
    "crawledAt": "2026-10-17T10:54:30+00:00",
    "title": "Markdown - Wikipedia",
    "description": null,
    "author": "Authority control databases International FAST National United States Israel",
    "publishedDate": "2005-08-09",
    "siteName": "Wikimedia Foundation, Inc.",
    "language": "en",
    "extractionMode": "article",
    "markdown": "# Markdown\n\n| Markdown |  | \n|---|---|\n| [Filename extensions](https://en.wikipedia.org/wiki/Filename_extension) | `.md`, `.markdown`<sup>[\\[1\\]](https://en.wikipedia.org#cite_note-df-2022-1)</sup><sup>[\\[2\\]](https://en.wikipedia.org#cite_note-rfc7763-2)</sup> | \n| [Internet media type](https://en.wikipedia.org/wiki/Media_type) | `text/markdown`<sup>[\\[2\\]](https://en.wikipedia.org#cite_note-rfc7 …",
    "wordCount": 6134,
    "estimatedTokens": 10767
}
Page to Markdown — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14313/web+intelligence+api/35877/page+to+markdown?url=https://en.wikipedia.org/wiki/Markdown' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Crawl up to 50 pages of a website and list broken links (404, 5xx, DNS, timeouts) with the page and anchor text where each appears.
Endpoint ID: 35878
GET https://zylalabs.com/api/14313/web+intelligence+api/35878/broken+link+finder
INPUT PARAMETERS

Broken Link Finder — Endpoint Features

Object Description
url Required Website URL or bare domain, e.g. "example.com". Example: crawlee.dev
max_pages Optional Pages of the site to crawl (max 50 per call) (1-50). Example: 10
check_external Optional Check external (true or false). Default: true
check_resources Optional Also check images, scripts and stylesheets (true or false). Default: false
include_ok Optional Also return working links (true or false). Default: false

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

url
max_pages
check_external
check_resources
include_ok
API EXAMPLE RESPONSE
JSON
{
    "startUrl": "crawlee.dev",
    "checkedAt": "2026-10-17T10:55:00+00:00",
    "summary": {
        "pagesCrawled": 5,
        "pagesSkippedByRobots": 0,
        "linksChecked": 288,
        "broken": 0,
        "blocked": 5,
        "ok": 283,
        "stoppedEarly": false,
        "robotsTxtUsed": true
    },
    "links": [
        {
            "url": "https://npmjs.com/package/@apify/storage-local",
            "verdict": "blocked",
            "status": 403,
            "error": null,
            "finalUrl": "https://www.npmjs.com/package/@apify/storage-local",
            "redirects": 1,
            "resourceType": "link",
            "internal": false,
            "foundOn": [
                "https://crawlee.dev/js/api/core"
            ],
            "anchorTexts": [
                "@apify/storage-local"
            ]
        },
        {
            "url": "https://npmjs.com/package/browser-pool",
            "verdict": "blocked",
            "status": 403,
            "error": null,
            "finalUrl": "https://www.npmjs.com/package/browser-pool",
            "redirects": 1,
            "resourceType": "link",
            "internal": false,
            "foundOn": [
                "https://crawlee.dev/js/api/core"
            ],
            "anchorTexts": [
                "browser-pool"
            ]
        }
    ]
}
Broken Link Finder — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14313/web+intelligence+api/35878/broken+link+finder?url=crawlee.dev&max_pages=10' --header 'Authorization: Bearer YOUR_API_KEY' 


    
Request
Extract text and tables from a PDF or image URL, with OCR for scanned pages in English, Hebrew, Arabic, German, French and Spanish.
Endpoint ID: 35879
GET https://zylalabs.com/api/14313/web+intelligence+api/35879/pdf+and+image+text+extraction
INPUT PARAMETERS

PDF and Image Text Extraction — Endpoint Features

Object Description
url Required Public URL of a PDF or image (PNG/JPEG/TIFF/WebP). Example: https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf
mode Optional auto = text layer, OCR only scanned pages (one of: auto, text, ocr). Default: auto
languages Optional OCR language codes, comma-separated: eng, heb, ara, deu, fra, spa. Default: eng
output Optional Output (one of: markdown, text). Default: markdown
max_pages Optional Max pages (1-20). Default: 20
extract_tables Optional Extract tables (true or false). Default: true

Free test requests remaining: 3 of 3.


INPUT PARAMETERS

url
mode
languages
output
max_pages
extract_tables
API EXAMPLE RESPONSE
JSON
{
    "url": "https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf",
    "bytes": 13264,
    "pageCount": 1,
    "ocrPages": 0,
    "textLayerPages": 1,
    "tableCount": 0,
    "format": "markdown",
    "truncated": false,
    "content": "<!-- page 1 (text) -->\n\nDummy PDF file",
    "pages": [
        {
            "page": 1,
            "method": "text",
            "text": "Dummy PDF file",
            "tables": [],
            "ocrConfidence": null
        }
    ]
}
PDF and Image Text Extraction — CODE SNIPPETS

curl --location --request GET 'https://zylalabs.com/api/14313/web+intelligence+api/35879/pdf+and+image+text+extraction?url=https://www.w3.org/WAI/ER/tests/xhtml/testfiles/resources/pdf/dummy.pdf' --header 'Authorization: Bearer YOUR_API_KEY' 


    

API Access Key & Authentication

After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the Web Intelligence API simply include your bearer token in the Authorization header.

Headers
Header Description
Authorization Required Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.

No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.

Starts at
$10,000/Year


  • Custom Volume
  • Custom Rate Limit
  • Specialized Customer Support
  • Real-Time API Monitoring

Overview

Web Intelligence API audits websites, detects their tech stack, converts pages to Markdown, finds broken links and extracts text from PDFs with OCR, all with one key.

Web Intelligence API FAQs

Yes. Website Health Audit, Tech Stack Detection and Broken Link Finder accept either a bare domain name or a full address that starts with https.

Broken Link Finder crawls up to 50 pages and OCR processes up to 20 pages, so these calls can take 10-100 seconds. The other endpoints usually answer in a few seconds.

English (eng), Hebrew (heb), Arabic (ara), German (deu), French (fra) and Spanish (spa). Pass them comma-separated in the languages parameter. Right-to-left text is fixed automatically.

No. Only public websites are checked; private, local and internal addresses are blocked.

Yes. Links blocked by robots.txt or by the target site are reported as blocked, not as broken.

General FAQs

To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.

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API calls are deducted from your plan based on successful requests. Each plan comes with a specific number of calls that you can make per month. Only successful calls, indicated by a Status 200 response, will be counted against your total. This ensures that failed or incomplete requests do not impact your monthly quota.
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