10 checks

Performance & Tech Tools

Inspect speed, infrastructure, and page footprint signals. Test delivery behavior, detect tech stack clues, calculate page weight, and estimate carbon impact so performance work starts from evidence.

Tools

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Tool cluster

Explore Performance & Tech diagnostics

Live checks with no account required

Tech Stack Detector

Identify technologies, frameworks, and CMS used by a website

~3sOpen

Meta Tags Checker

Inspect all meta tags including Open Graph and Twitter Cards

~1sOpen

Social Share Preview

Preview how your URL looks when shared on social media

~2sOpen

Carbon Footprint

Estimate the carbon emissions of a webpage

~2sOpen

Sitemap Checker

Validate and analyze a website's sitemap.xml

~2sOpen

Broken Link Checker

Find broken links on any webpage

~8sOpen

Page Speed Test

Measure page load performance and Core Web Vitals

~5sOpen

HTTP/3 & Protocol Checker

Check if a website supports HTTP/2 or HTTP/3 (QUIC)

~2sOpen

Favicon & PWA Checker

Check favicons, web app manifest, and PWA readiness

~3sOpen

Page Weight Analyzer

Analyze total page size, resources, and compression

~2sOpen

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