Free DNS and SEO Audit Tools Every Website Owner Should Know

When a website stops loading, emails fail, or Google reports crawl errors, DNS is one of the first places to check. But DNS is only one part of website health. Hosting, redirects, SSL, performance, metadata, sitemaps, and security also affect how reliably a site works and how search engines understand it.

That is why a combined SEO and domain audit can be more useful than a simple DNS lookup.

What to check first

Start with these basics:

• A and AAAA records for the main website
• CNAME records for www, CDN, and subdomains
• MX records for email routing
• SPF, DKIM, and DMARC TXT records
• Nameservers and SOA records
• HTTPS behavior on root and www versions
• Sitemap and robots.txt availability
• Page title, meta description, headings, and canonical tags

A useful free starting point

The 360 Tools has a Free Website SEO & Domain Audit Report that checks SEO, domain age, DNS, hosting, technology, performance, and security from one URL.

The site also includes a full SEO tools hub with practical tools for website owners, developers, bloggers, and marketers.

Helpful supporting tools

For content and technical SEO checks, these tools are also useful:

• Meta Tag Generator
• SERP Preview Tool
• Sitemap Generator
• Sitemap Extractor

Basic DNS and SEO workflow

1. Run a broad SEO/domain audit.
2. Check DNS records and propagation.
3. Confirm HTTPS and redirects.
4. Validate sitemap and robots.txt.
5. Review metadata and canonical URLs.
6. Fix the highest-priority issues first.

Final thought

DNS tools help you find technical domain issues. SEO tools help you understand visibility and crawlability. A combined workflow gives website owners a faster path from “something is wrong” to “here is what to fix.”

If you want a free browser-based toolkit for quick checks, start with The 360 Tools.