Company Domain Tech, DNS & Security Audit

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Audit company domains for public website metadata, tech stack, DNS, TLS, RDAP, robots.txt, and sitemap signals. Enter company domains or URLs and get a source-linked domain audit row for vendor research, market mapping, and portfolio hygiene. No login, no paid API key, no private pages, and no person-targeting output.

Store Quickstart

Run one audited domain:

{
"domains":["stripe.com"],
"auditLevel":"techstack_report",
"dryRun":false
}

Run a lighter DNS/TLS check:

{
"domains":["notion.so","shopify.com"],
"auditLevel":"security_audit",
"dryRun":false
}

Preview the output shape without live requests or billing:

{
"dryRun":true
}

What You Get

• Website reachability, final URL, page title, and meta description.
• Tech stack hints from public HTML and response headers.
• DNS posture: A, MX, NS, SPF, DMARC, and derived mail provider.
• RDAP registration age, registrar, expiry, and status flags.
• TLS certificate issuer, validity window, days to expiry, and SAN domains.
• robots.txt / sitemap presence and approximate sitemap URL count.
• A completeness score and signalsResolved count for filtering weak records.

Input Fields

Sample Output

{
"rowType":"company",
"billingEventName":"company-full",
"domain":"notion.so",
"companyName":"Notion",
"description":"A connected workspace for docs, wikis, and projects.",
"website":{
"reachable":true,
"finalUrl":"https://notion.so/",
"title":"Notion - One workspace. Every team."
},
"dns":{
"mx":["aspmx.l.google.com"],
"mailProvider":"Google Workspace",
"spf":"v=spf1 include:_spf.google.com ~all",
"dmarc":"v=DMARC1; p=reject;"
},
"rdap":{
"registrar":"MarkMonitor Inc.",
"createdDate":"2013-03-13T00:00:00Z",
"ageYears":13.2
},
"ssl":{
"issuer":"Google Trust Services",
"daysToExpiry":60,
"sans":["notion.so","*.notion.so"]
},
"techStack":["Next.js","React","Segment","Google Analytics / GTM"],
"schemaOrg":{
"name":"Notion",
"sameAs":["https://www.linkedin.com/company/notionhq"]
},
"site":{
"hasRobots":true,
"hasSitemap":true,
"sitemapUrlCount":1200
},
"completeness":1,
"signalsResolved":7
}

Output Fields

Pricing

Domains that resolve no usable signals are skipped and not charged.

Compliance Guardrails

• Uses public, non-authenticated sources only: company website, DNS, RDAP, TLS, robots.txt, and sitemap.
• Blocks localhost, private network ranges, metadata hosts, non-HTTP(S) URLs, and redirects into private addresses.
• Stops on login walls, CAPTCHA, access-block pages, oversized responses, and repeated redirects.
• Does not access private dashboards, paid databases, account-only pages, or bypass controls.
• Output is not a legal, security, procurement, or vendor-certification opinion.

See Also

• Site QA Content Report Scraper for page-level content reports.
• Site QA Broken Link Report Scraper for link issue reports.
• SaaS Pricing Changelog Battlecard Watch Scraper for competitive page change reports.