Web-PSQC
Performance
Global load speed Core Web Vitals (Lighthouse) Mobile experience Load test (k6)
Security
SSL/TLS security (testssl.sh) TLS configuration (SSLyze) Security headers Vulnerability scan (OWASP ZAP) CVE scan (Nuclei)
Quality
Accessibility (WCAG) Browser compatibility Responsive layout
SEO
SEO essentials Meta tags & link previews Structured data Crawlability: robots.txt & sitemap Site crawl & broken links Google presence
AI visibility
AI crawler access AI answer readiness What AI says about you
Web-PSQC
Pricing Certificate Blog Sign in Test a website
Free · 18 tests · 8 global regions

Website speed & performance test + security, SEO and AI visibility checks

Enter any URL. Real browsers load it from 8 regions while we check Core Web Vitals, SSL/TLS, security headers, accessibility, SEO and AI-search visibility — and every result appears live the moment its test finishes.

Load speed · 8 regions Core Web Vitals SSL/TLS Security headers Accessibility SEO AI crawlers

No sign-up needed. See a sample report for devteam.co.kr.

SAMPLE REPORT
90/ 100
devteam.co.krTested 12 hours ago · grade A
F Global speed avg 1.47 s
A+ Core Web Vitals LCP 2.03 s
A+ SSL/TLS rated A+
B Headers 82/100
A+ Accessibility 100/100
A+ Meta tags 96/100
A+ AI crawlers 100/100

Open the full sample report →

18 tests in one report

Everything that decides whether visitors stay — and search engines send them

Run them all from the box above, or open any test on its own.

Performance

How fast your pages load around the world and on phones.

Security

Encryption, certificates and the headers that protect visitors.

Quality

Accessibility, browser support and layout on every screen size.

SEO

What search engines see: meta tags, structure, crawlability and links.

AI visibility

Whether ChatGPT, Claude, Perplexity and Google AI can find, read and quote you.

Certificate

Score B or better and show it: a verifiable Web-PSQC certificate with a public verification page and QR code.

Live results

Watch your report build itself

Tests run in parallel on dedicated workers. Fast checks land within seconds; browser tests follow as they finish — no waiting for one big PDF.

Enter a URL

Any public website — your own, a client's or a competitor's. We check that it is reachable before anything runs.

See results as they land

Meta tags, headers and AI crawler access in seconds; speed from 8 regions, Lighthouse and mobile within a couple of minutes.

Fix what matters first

Every failed check explains the problem and the fix, ordered by impact, with a shareable link for your team.

Global speed

How fast is your site in Seoul, London and Oregon?

A site can be fast at home and slow everywhere else. Real Chrome browsers in 8 AWS regions load your page twice — empty cache and repeat visit — so you see what visitors and crawlers abroad experience.

  • Server response and full load time per region
  • CDN and edge-cache detection
  • US response time — where Googlebot and most AI crawlers connect from
Global speed test

devteam.co.kr — full load time

Full page load by region — first visit and repeat visit

Seoulap-northeast-2
3.97 s
Tokyoap-northeast-1
467 ms
Singaporeap-southeast-1
835 ms
Sydneyap-southeast-2
954 ms
US EastVirginia
1.27 s
US WestOregon
1.28 s
Frankfurteu-central-1
1.32 s
Londoneu-west-2
1.67 s
First visit (empty cache)Repeat visit (cached)
AI visibility · GEO

Can ChatGPT, Claude and Perplexity find you?

More people now ask AI assistants instead of searching. If your firewall blocks AI crawlers, your content needs JavaScript to appear, or nothing tells AI who you are, you will not be cited.

  • robots.txt rules for 15 AI and search crawlers
  • Real requests with GPTBot, ClaudeBot and PerplexityBot user agents
  • llms.txt, entity data, FAQ and trust signals
  • The actual answer an AI assistant gives about your site
AI crawler access test
AI assistant with web search · asked "What is devteam.co.kr?"
DevTeam Korea (devteam.co.kr), operated by DevTeam Co., Ltd., is a South Korea-based software development agency that handles end-to-end digital product creation from initial planning and design to deployment and ongoing operations. The company offers minimum viable product (MVP) development, cross-platform web and mobile applications using frameworks like Flutter and Laravel, enterprise system and ERP integrations, and internal AI solutions such as large language model and RAG implementations. Additionally, it provides technical support services, including emergency website troubleshooting, SEO and performance diagnostics, and post-launch maintenance, while delivering full source code and server ownership to clients. These services are primarily intended for startups, businesses participating in government-supported tech projects, and organizations looking to introduce AI tools or upgrade their internal digital infrastructure.

Sources it used: devteam.co.kr devteam.co.kr devteam.co.kr devteam.co.kr

Answer generated by Google Gemini with Google Search grounding. AI answers change over time and differ between assistants.

Pricing

Free to test. Plans when you need more.

Free

$0

5 full tests a day, no account. 20 a day with a free account.

  • All 18 public tests
  • Shareable live reports
  • Fix-it guidance for every check
Start testing

Starter

$29/mo

For your own sites.

  • 600 tests a month · 60 a day
  • Load test, ZAP and Nuclei on verified domains
  • Test history
See plan

Pro

$69/mo

For teams that ship often.

  • 1,500 tests a month · 150 a day
  • Deeper site crawls
  • Everything in Starter
See plan

Agency

$199/mo

For client work.

  • 6,000 tests a month · 600 a day
  • Many client domains
  • Certificates for clients
See plan

Frequently asked questions

Is the website test really free?
Yes. Anyone can run 5 full tests a day without an account, and a free account raises that to 20. Paid plans add more tests, scheduled monitoring and certificates.
How long does a full test take?
The first results appear within seconds. Fast checks such as meta tags, security headers and AI crawler access finish in under 15 seconds; browser-based tests (Lighthouse, mobile, accessibility, browser compatibility) and the 8-region speed test take one to three minutes. Every result is shown the moment its test finishes.
Where are the speed tests run from?
Global load speed is measured with real Chrome browsers in 8 AWS regions: Seoul, Tokyo, Singapore, Sydney, Frankfurt, London, US East (Virginia) and US West (Oregon). Lighthouse, mobile and the other browser tests run from our test server in Virginia, USA.
What does the overall score mean?
Each test scores 0–100 and the overall score is their weighted average. Grades: A+ from 95, A from 90, B from 80, C from 70, D from 60, F below. Every check shows what passed, what failed and how to fix it.
Will the test affect my website?
The free tests behave like a handful of normal visitors: a few dozen page requests in total. Load testing and vulnerability scanning send heavy or attack-style traffic, so they only run on domains you have verified as yours.
What is AI visibility (GEO)?
Generative engine optimization means making your site easy for AI assistants such as ChatGPT, Claude, Perplexity and Google's AI Overviews to read, understand and cite. Web-PSQC checks AI crawler access, llms.txt, structured data, answer-style content, and asks an AI assistant what it knows about your site.
Can I share or certify the results?
Every report has a shareable link. Sites that score B or better can get a verifiable Web-PSQC certificate with a QR code and a public verification page.

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18 tests, 8 regions, live results. Free.