530 Tools — 20+ Free SEO & Email Security Tools Online

Domain Registration & DNS records

DNS Lookup

Query A, MX, NS, TXT, and CNAME records for free.

Lookup DNS →

WHOIS Lookup

Find domain owner, registrar, registration date, expiry, and nameserver details.

Lookup WHOIS →

Full Analysis

Combine DNS, WHOIS, SEO, and sitemap data into one complete report.

Run Free Analysis →

Email Check & generate authentication records

DMARC Lookup

Check your DMARC record and see how well your domain is protected against spoofing.

Check DMARC →

SPF Lookup

Validate your SPF record, count DNS lookups, and catch misconfigurations.

Check SPF →

DKIM Lookup

Find and validate DKIM records — auto-detects selectors across 25+ configurations.

Check DKIM →

Email Verify

Check if an email exists without sending a message.

Verify Email →

DMARC Record

Build a valid DMARC TXT record with the right policy, reporting, and settings.

Generate DMARC →

SPF Record

Create an SPF record for Google Workspace, Microsoft 365, Mailgun, SendGrid, and more.

Generate SPF →

DKIM Keys

Generate a DKIM key pair in your browser — private key never leaves your device.

Generate DKIM →

SEO Whole-site scope

Site Audit

Crawl your entire website, score every page, and get prioritized fixes.

Start Free Audit →

Sitemap Explorer

Extract every URL from a domain's sitemap for free.

Explore Sitemap →

Page Counter

Count how many indexable pages a website actually has.

Count Pages →

Rank Lookup

See where a domain ranks in Google for any keyword.

Check Rank →

Page tools One URL in, one artifact out

Content Pull

Extract clean text, headings, and links from any web page.

Pull Content →

Screenshot

Capture a full-page screenshot of any URL in seconds.

Take Screenshot →

OG Checker

Preview and validate Open Graph tags for clean social sharing.

Check OG Tags →

OG Image Creator

Generate a polished Open Graph share image for any page.

Create OG Image →

AI reports 530tools-written PDF

AI SEO Audit

Deep AI-powered audit with scores, issues, and recommendations as a downloadable PDF.

Run AI Audit →

Competitors & Keywords

Identify real competitors, discover keyword gaps, and get a full strategy roadmap as a PDF.

Analyze Competitors →

Accessibility Checker

AI audit against General, ADA, or WCAG 2.1 AA — prioritized issues, impact, and fixes.

Run Audit →

How it works

Three steps to instant
free domain analysis

No accounts, no installs, no credit card. Just enter a domain.

Enter any domain

Type or paste a domain name. No protocol needed.

Get instant results

DNS resolvers, WHOIS registries, and crawlers return data in under two seconds.

Act on the insights

Fix misconfigurations, improve SEO scores, or clean your email list.

FAQ

Frequently asked questions

Common questions about our free SEO tools.

Queries the Domain Name System for A, MX, NS, TXT, CNAME records — essential for troubleshooting and email security.

Queries registries to return domain owner, registrar, dates, and nameservers.

Titles, meta descriptions, headings, alt text, keywords, and mobile responsiveness.

Yes. SMTP-level check without sending email. Completely non-intrusive.

100% free. No signup, no account, no limits.

SEO Analysis checks one page. Website Audit crawls your entire site.