www.luton.gov.uk: Lighthouse — week 2026-W44

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

6.9s 190/192 pages over

Avg extra weight over 1.6 MB

1.03 MB 191/201 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

36/100

Accessibility

96/100

Best practices

73/100

SEO

100/100

Agentic browsing

38/100

Largest Contentful Paint

9.6s

First Contentful Paint

3.2s

Speed Index

4.8s

Total Blocking Time

1.0s

Cumulative Layout Shift

0

Recommendations

Issues Lighthouse flagged across the 218 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

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: 38/100.

Gaps found on the sampled pages: WebMCP tools registered (192), WebMCP form coverage (192), WebMCP schemas are valid (192), llms.txt follows recommendations (192), `ai-catalog.json` schema is valid (192), Accessibility tree is not well-formed (117), Cumulative Layout Shift (112).

Per-page results