Diagnostic Suite

Complete Suite of Website Diagnostic Tools

Explore our complete collection of website analyzers, search estimators, crawler simulators, host finders, AI citation checkers, and technical utilities—built on over 30 years of web experience to help website owners find and fix what matters.

100% Free · Instant

Free Website Checkup

Our flagship on-page technical diagnostic scanner analyzing 160+ checks across 9 critical pillars. Delivers an immediate 0–100 health score with clear pass, warning, and fail breakdowns.

Problem Solved: Uncovers hidden technical glitches, missing meta tags, broken code structures, and slow page elements that cost you visitors and lower your search rankings.
  • Technical SEO, meta tags, and canonical integrity
  • Performance, image weights, and asset latency
  • Mobile usability and tap target accessibility
  • Security, SSL encryption, and mixed content checks
Run Free Checkup →
Free Tool · Infrastructure

Web & Email Host Finder

Unified host finder identifying origin website hosting, mail server infrastructure, reverse IP PTR records, WHOIS organization, AS info, and authoritative DNS hosting.

Problem Solved: Resolves domain confusion by unmasking proxy layers (Cloudflare, Sucuri) and custom MX records (`mail.domain.com`) to reveal where a domain's website and email are truly hosted.
  • Detects origin web host & edge CDN proxy
  • Identifies primary mail server & SPF senders
  • Performs Reverse IP Dig (PTR record lookups)
  • Lookup AS info, IP city/country & WHOIS org
Find Hosts →
Free Tool · Search Data

Traffic Estimator

Estimate any website’s monthly organic search visits, keyword ranking footprint, top traffic pages, and commercial organic traffic value ($) without an expensive monthly software subscription.

Problem Solved: Eliminates guesswork around search visibility and competitor performance by revealing monthly search visits, top keywords, and commercial traffic valuation ($).
  • Estimated monthly organic visits & traffic value ($)
  • Keyword position distribution (Top 3, 4–10, 11–20)
  • Top 5 ranking organic search keywords
  • Top 5 traffic-driving landing pages
Estimate Traffic →
Domain Security

WHOIS & Domain Age

Instant WHOIS audit checking domain registration creation date, expiration countdown, registrar details, EPP transfer locks, WHOIS privacy protection, and nameserver hosts.

Problem Solved: Prevents unexpected domain expirations, transfer hijacking, and security lock misconfigurations by auditing domain age, registrar settings, and privacy status.
  • Domain creation date & age calculation
  • Expiration countdown & renewal warning levels
  • EPP status lock explanations & privacy audit
  • Registrar IANA details & nameserver hosts
Lookup WHOIS →
Indexation Engine

XML Sitemap Health Audit

Comprehensive XML sitemap index scanner, robots.txt disallow rule checker, lastmod date synchronization auditor, and visual directory health tree generator.

Problem Solved: Resolves indexation delays and crawler budget waste by detecting duplicate sitemaps (www vs non-www), stale lastmod timestamps, and robots.txt disallow conflicts.
  • Multi-source sitemap discovery (robots.txt & CMS paths)
  • Robots.txt Disallow rule contradiction checking
  • Visual directory tree hierarchy with worst-descendant status
  • One-Click Clean XML Sitemap Generator export
Audit XML Sitemap →
AI Discovery Intelligence

Brand Visibility & AI

Scan your off-page brand footprint across major AI engine training datasets, knowledge graphs, business directories, and citation authorities to ensure AI models know your business.

Problem Solved: Prevents your business from being invisible to modern AI search engines (ChatGPT, Claude, Gemini, Perplexity) by verifying your off-page presence and NAP directory consistency.
  • Scans Wikidata, Wikipedia, Crunchbase, LinkedIn, BBB
  • Brand Mentions & Citation Authority Score (0–100)
  • Verifies NAP (Name, Address, Phone) consistency
  • Optimizes discovery for ChatGPT, Claude, Gemini & Perplexity
Check Brand Citations →
Bot Simulator

Spider View Crawler

See your web pages through the eyes of search engine crawlers and AI bots (Googlebot, Bingbot, GPTBot, ClaudeBot) fetching raw server HTML before JavaScript runs.

Problem Solved: Uncovers hidden Client-Side Rendering (CSR) blindspots where JavaScript-heavy frameworks deliver blank HTML shells to search crawlers like Googlebot.
  • Detects Client-Side Rendering (CSR) indexing blindspots
  • Text-Only Lynx reading order inspection
  • Complete H1–H6 heading hierarchy & link discovery audit
  • Spider Crawlability Score (0–100) and response latency
Test Spider Crawlability →
Indexation Gate

Noindex & Canonical Checker

Instant verification of meta robots directives, X-Robots-Tag HTTP response headers, self-referential canonical declarations, and search engine indexation blockers.

Problem Solved: Prevents accidental search de-indexing caused by forgotten staging `noindex` tags, server-level HTTP header directives, or broken canonical URL declarations.
  • Scans HTML `` directives
  • Audits HTTP response headers for `X-Robots-Tag`
  • Validates self-referential canonical URL alignment
  • Provides plain-English indexation verdict & fix steps
Check Noindex Directives →
DNS Caching Performance

DNS TTL & Migration Audit

Audit DNS Time-To-Live (TTL) record durations across A, AAAA, MX, NS, CNAME, and TXT records to evaluate caching latency impact and server migration readiness.

Problem Solved: Prevents site downtime and email delivery delays during server migrations by evaluating whether DNS TTLs are properly lowered before changing IP addresses.
  • Scans min, max, and average DNS record TTLs
  • Evaluates DNS caching performance latency
  • Server migration readiness verdict & guidance
Audit DNS TTL →
Responsive Testing

Mobile View Simulator

Interactive live mobile viewport simulator testing responsiveness, touch tap targets, viewport meta scaling, and mobile usability across phone and tablet dimensions.

Problem Solved: Eliminates mobile usability failures, small tap targets, font scaling errors, and horizontal layout overflow across different phone and tablet viewports.
  • Multi-device viewport preview (iOS & Android devices)
  • Tap target spacing and touch usability verification
  • Responsive layout shift and overflow prevention
Launch Mobile Simulator →
Commercial Evaluation

Website Profile & Valuation

Commercial website valuation, domain heritage analysis, CMS technology stack detection, archive redesign history, and estimated site overhaul timeline.

Problem Solved: Provides buyers, sellers, and agencies with objective commercial website valuations, CMS stack detection, and site redesign timeline estimates.
  • Commercial site valuation ($) and asset rating
  • CMS & technology stack detection (WordPress, Shopify, etc.)
  • Wayback archive redesign history & domain age
View Website Profile →
Local Trust

Reputation Checker

Check Google Business Profile ratings, review count volume, customer sentiment indicators, and local directory trust signals for any commercial business.

Problem Solved: Evaluates local customer trust signals and Google Business review ratings to ensure your online reputation converts search traffic into paying clients.
  • Google Business Profile review score & volume
  • Customer sentiment indicators & rating benchmarks
  • Local directory trust directory listing
Check Reputation →
Developer Utility

Markdown to HTML Converter

Fast, secure, client-side Markdown to HTML converter supporting GitHub Flavored Markdown (GFM), syntax highlighting, instant live preview, and one-click copy.

Problem Solved: Converts Markdown documentation, blog drafts, and README files into clean, semantically formatted HTML ready for CMS publishing.
  • GitHub Flavored Markdown (GFM) tables & code blocks
  • Instant side-by-side live HTML rendering
  • One-click copy formatted HTML or raw code export
Convert Markdown →
Deep 6-Pillar Audit

Full SEO Audit ($39)

An institutional-grade, deep website audit covering 6 comprehensive pillars with live backlink authority data, Core Web Vitals, and prioritized developer remediation tasks.

Problem Solved: Provides 6-pillar deep diagnostic analysis with live backlink authority checks, Core Web Vitals profiling, and a prioritized developer remediation plan.
  • Technical SEO, indexation, and server directives
  • Core Web Vitals (LCP, FID, CLS) and real performance
  • Backlink profile, referring domains, and page authority
Explore Full SEO Audit →
Commercial Deliverable

Full Website Report ($47)

Our flagship commercial website audit combining AI executive summaries, commercial valuation metrics, redesign timelines, and white-label client report deliverables.

Problem Solved: Delivers an executive-ready, polished client report combining technical checkups, AI strategic roadmaps, and white-label website deliverables.
  • AI Executive Summary & strategic roadmap
  • Commercial valuation ($) & overhaul timeline
  • White-label custom report option (`websitereport.online`)
Explore Full Report →
Monitoring & Books

SiteCare™ & Resources

Continuous 24/7 server uptime monitoring, SSL certificate expiry tracking, and DIY troubleshooting manuals authored by Tony Herman to turn websites into lead generators.

Problem Solved: Prevents unexpected downtime with 24/7 server monitoring while equipping site owners with DIY manuals and conversion strategy playbooks.
  • 24/7 real-time server availability & uptime tracking
  • Automated SSL certificate expiry & renewal alerts
  • Fix Your Website Guide & strategy books
Shop & Resources →

Ready to Find and Fix What Your Website Needs?

Run an instant scan now to discover hidden technical bottlenecks, optimize search performance, and fix issues fast.