www.luton.gov.uk: Lighthouse — week 2026-W45

Trend

History & Trends → Severity, Lighthouse and other measures across 2 weeks.

Performance impact

How far pages fall short of Google's "good" benchmarks: Largest Contentful Paint ≤ 2.5s and page weight ≤ 1.6 MB. Lower is better.

Avg extra LCP over 2.5s

7.3s 77/77 pages over

Avg extra weight over 1.6 MB

1.05 MB 107/108 pages over

Set page_loads_per_week for this target to also estimate total wasted time and data (the way daily-dap uses traffic counts).

Medians across sampled pages

Performance

30/100

Accessibility

96/100

Best practices

73/100

SEO

100/100

Agentic browsing

9/100

Largest Contentful Paint

9.9s

First Contentful Paint

2.7s

Speed Index

5.3s

Total Blocking Time

1.1s

Cumulative Layout Shift

0.481

Recommendations

Issues Lighthouse flagged across the 97 sampled page(s), beyond the headline scores — grouped by category and ranked by how many pages they affect. Estimated savings (transfer bytes or load time) are Lighthouse's own estimates where available. Accessibility audits are intentionally omitted; they overlap with the axe-core findings on the Accessibility page.

Performance

Best Practices

SEO

Agentic (AI-readiness)

What the Agentic score means

The Agentic (AI-readiness) score is new in Google Lighthouse (13.4+). It measures how well a page works for AI agents and assistants — the tools that increasingly mediate how people find and use government services. It checks for things like an llms.txt file (a machine-readable guide for language models), valid structured data, a well-formed accessibility tree that agents can parse, and WebMCP tool/form descriptions. A higher score means an AI assistant is more likely to understand the page and complete tasks on a citizen's behalf correctly.

It is experimental and evolving; treat it as a forward-looking signal, not a compliance requirement. Median across sampled pages: 9/100.

Gaps found on the sampled pages: WebMCP tools registered (77), WebMCP form coverage (77), WebMCP schemas are valid (77), llms.txt follows recommendations (77), `ai-catalog.json` schema is valid (77), Accessibility tree is not well-formed (76), Cumulative Layout Shift (73).

Per-page results