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VitalsLens

See exactly why your site is slow — and exactly how to fix it. Core Web Vitals, decoded.

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For UK web teams and agencies.

VitalsLens product visual

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Explains exactly why a site is slow and how to fix it, decoded from Core Web Vitals into plain actions.

VitalsLens audits your site against Core Web Vitals, technical SEO, on-page SEO, and accessibility — then hands you a prioritised, code-level fix list. Not another vague score; actual line-by-line recommendations with expected LCP/CLS/INP impact.

Run one-off audits or schedule continuous monitoring across staging and production. VitalsLens tracks regressions commit-by-commit, catches broken meta tags before they ship, and flags schema-markup gaps that are costing you rich-result traffic. SEO and performance, finally on the same dashboard.

  • SEO
  • Core Web Vitals
  • Lighthouse
  • Performance
  • Next.js
  • Node.js

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What VitalsLens does.

  • Full Core Web Vitals audit (LCP, INP, CLS)
  • Technical SEO scan with actionable fixes
  • Per-commit regression tracking
  • On-page SEO & schema-markup validator
  • Competitor benchmarking
  • Accessibility (WCAG) audit
  • Slack / email regression alerts
  • Public shareable audit reports

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Who it is for.

  • Agency performance audits

    Hand clients a prioritised, code-level fix list with expected LCP/CLS/INP impact — not another vague score.

  • Continuous monitoring

    Track regressions commit-by-commit across staging and production, with Slack and email alerts before users notice.

  • Pre-release checks

    Catch broken meta tags, schema gaps and Web Vitals regressions in CI before they ship and cost you rankings.

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Where to find VitalsLens.

Coming soon

Early access — pricing announced at launch

Website

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VitalsLens: common questions.

How is VitalsLens different from Lighthouse?

Lighthouse gives you scores; VitalsLens gives you line-by-line fixes with the expected impact on LCP, CLS and INP — plus technical SEO, schema validation and accessibility in the same report.

Can it monitor continuously?

Yes — schedule audits across staging and production, track per-commit regressions and get alerted in Slack or email when something slips.

When does it launch?

VitalsLens is in development. Express your interest on this page and you will be first in line for early access.

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More from Krapton.

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