Guides
Trust-first checklists for websites, emails, phones, companies, links, and content.
Trust & data validation
- Is this website safe? Quick trust signals
- Website scam checker: how to verify legitimacy
- Check email validity before you trust sender
- Phone scam checker: validate unknown numbers
- Company legitimacy check for vendors and suppliers
- AI text detector guide: risk and authenticity signals
- Check if a site is legit before you pay
- Detect fake website patterns quickly
- Phishing website check: first-response playbook
- Suspicious URL checker: what to review first
- Domain reputation check for trust triage
- Email scam checker for risky outreach messages
- Disposable email checker for lead quality
- Verify email address before workflow actions
- Business email verification checklist
- Phone number validator for quick legitimacy checks
- Check if phone number is real
- VOIP number checker and risk context
- Number reputation check before callbacks
- Verify company online with basic trust signals
- Vendor risk checker for onboarding teams
- Check business reputation before partnership
- Content authenticity checker for moderation workflows
- AI spam detector for suspicious text campaigns
- Fake content detector: trust-first review flow
- URL risk analyzer for unknown links
- robots.txt Allow/Disallow conflict
- Schema.org invalid type
- HTML unclosed tag
- JSON unexpected token
- Fix JSON trailing comma
- Fix CSV malformed quote
- Fix XML invalid syntax
- Fix regex invalid escape
- Fix .env file syntax
- Fix JSON duplicate keys
Technical SEO
AI visibility (AEO)
- Missing or invalid llms.txt
- tools.json validation errors
- Free AEO Checker – AI Visibility Analyzer best practices
- Free Schema Markup Checker – FAQ, HowTo, Organization best practices
- Universal Developer Analyzer – AI + Schema Audit best practices
- AI Bot Access Checker – GPTBot, ClaudeBot, Perplexity best practices
- Robots.txt for AI Bots – AI Crawler Rules Parser best practices
- X-Robots for AI Checker best practices
- User-Agent Rules for AI best practices
- Blocked by AI Tester best practices
- Free llms.txt Validator – llms.txt Checker best practices
- llms.txt Link Checker best practices
- llms.txt Content Checker best practices
- Free tools.json Validator – tools.json Checker best practices
- API Status Checker best practices
- Sitemap for AI Pages best practices
- Free FAQ Schema Checker – FAQPage Validator best practices
- Free HowTo Schema Checker – HowTo Validator best practices
- Definition Finder best practices
- Citation-Friendly Content Checker best practices
- Title Answer-Style Checker best practices
- Entity Extraction Preview best practices
- Snippet Length Checker best practices
- TTFB for Crawlers best practices
- No-JS Fallback Checker best practices
- Mobile-Friendly for Crawlers best practices
- Source/Author/Date Checker best practices
- Fact-Check Markup Checker best practices
- Canonical for AI best practices
- Free AEO Audit Lite – Quick AI Visibility Check best practices
- AI Visibility Report – AI Readiness Checklist best practices