speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time.

Charts Measurement runs Embed a score

groq.com

https://groq.com/

70 90 73 100 AXE CWV

Data from Aug 31, 2026, 9:00 PM UTC old

Overall #1,380 AI #5 Developer Tooling #62 · 1 measurement · since Aug 31, 2026

Stack

Next.js Built with Next.js
Vercel Hosted by Vercel

Core Web Vitals field data, url-level

Real Chrome users, 28-day window (2026-08-02 → 2026-08-29).

LCP 1.71 s good
INP 171 ms good
CLS 0 good

Lighthouse Scores

70
Performance
no change
90
Accessibility
no change
73
Best Practices
no change
100
SEO
no change

Filmstrip Lighthouse, mobile

How the page drew during the measured load, at 8 points across 3.08 s.

  1. 385 ms
  2. 771 ms
  3. 1.16 s
  4. 1.54 s
  5. 1.93 s
  6. 2.31 s
  7. 2.70 s
  8. 3.08 s

Without JavaScript

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

Scripts disabled
As rendered

99.8% of pixels differ — they have almost nothing in common. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 3.17 s 3.17 s 3.17 s
CLS Cumulative Layout Shift 0 0 0
TBT Total Blocking Time 803 ms 803 ms 803 ms
FCP First Contentful Paint 1.07 s 1.07 s 1.07 s
Speed Index 5.36 s 5.36 s 5.36 s
TTFB Time to First Byte 619 ms 619 ms 619 ms

LCP Subparts lab observed, unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab metrics LCP metric shown above is throttled.

element render delay 229 ms
time to first byte 14 ms

Field data Chrome UX Report, url-level

Real Chrome users, 28-day trailing window (2026-08-02 → 2026-08-29).

Metric p75 Rating Distribution (good / needs work / poor)
LCP CWV 1.71 s good 85.3% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run 171 ms good 80.8% good
CLS CWV 0 good 88.3% good
FCP 1.51 s good 80.9% good
TTFB 694 ms good 79% good

Lab LCP vs Field LCP

Lab 3.17 s
Field p75 1.71 s

The lab LCP is 1.86× the field p75 — real users likely have above-average hardware or network connectivity.

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending LCPINPCLSFCPTTFB
2026-08-29 1.71 s 171 ms 0 1.51 s 694 ms
2026-08-22 2.05 s 203 ms 0 1.65 s 718 ms
2026-08-15 2.55 s 233 ms 0 1.87 s 806 ms
2026-08-08 2.77 s 254 ms 0 1.91 s 789 ms
2026-08-01 2.92 s 266 ms 0 1.94 s 781 ms
2026-07-25 2.85 s 261 ms 0 1.91 s 767 ms
2026-07-18 2.72 s 262 ms 0 1.76 s 683 ms
2026-07-11 2.74 s 262 ms 0 1.73 s 674 ms
2026-07-04 2.73 s 263 ms 0 1.69 s 653 ms
2026-06-27 2.89 s 264 ms 0 1.68 s 645 ms
2026-06-20 2.93 s 264 ms 0 1.65 s 634 ms
2026-06-13 2.91 s 265 ms 0 1.63 s 619 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 1.30 MB 1.30 MB 1.30 MB
Requests 78 78 78
Third-party Weight 544 kB 544 kB 544 kB
Third-party CPU 223 ms 223 ms 223 ms
Unused JS 337 kB 337 kB 337 kB
Unused CSS 10.9 kB 10.9 kB 10.9 kB

By resource type

  • script 76.9% 1.00 MB · 43 req
  • font 10.7% 139 kB · 4 req
  • other 8.3% 107 kB · 17 req
  • stylesheet 3% 38.7 kB · 6 req
  • document 1% 13.5 kB · 1 req
  • image <0.1% 403 B · 6 req

Third parties 5 entities

544 kB transferred, 223 ms on the main thread.

Google Tag Manager script 478 kB · 190 ms CPU
datagrail.io 45.2 kB · 16 ms CPU
reddit 20.6 kB · 17 ms CPU
Google/Doubleclick Ads 62 B · 0 ms CPU
Other Google APIs/SDKs 41 B · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 5.25 s 5.25 s 5.25 s
Long Tasks 14 14 14
DOM Elements 313 313 313
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 71 71 71
A11y Failures 2 2 2
A11y Failing Nodes 70 70 70

Main thread work

script evaluation 3.01 s
other 1.37 s
style layout 398 ms
script parse compile 329 ms
garbage collection 64 ms
paint composite render 64 ms
parse HTML 23 ms

Axe violations axe-core 4.13.0, full rule set

71 violating nodes across 3 rules, 274 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 55 nodes
  • serious aria-prohibited-attr — Elements must only use permitted ARIA attributes 15 nodes
  • moderate page-has-heading-one — Page should contain a level-one heading 1 node

Accessibility failures 2 of 19 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 55 nodes
  • aria-prohibited-attr — Elements use prohibited ARIA attributes 15 nodes

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 4 console errors

Measurement log

Every stored run for this URL, newest first.

When PerfLCPCLSTBTWeight RunsSpreadBenchTook
Aug 31, 2026, 9:00 PM UTC 70 3.17 s 0 803 ms 1.30 MB 3/3 ±16 2,456 -1% 34s