speedlify2

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

Measurement runs · Embed a score · Field data from the Chrome UX Report ·

strollmag.com

https://www.strollmag.com/

39 80 73 100 CWV 22AXE

Data from Aug 21, 2026, 2:34 PM UTC — 4h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 4h

Stack

Detected on the same page load as the accessibility pass — the generator from <meta name="generator"> or the shape of the page, the host from response headers.

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Core Web Vitals field data, url-level

Real Chrome users, 28-day window (2026-07-23 → 2026-08-19). This is what Google measures you on.

LCP 1.49 s good
INP 108 ms good
CLS 0.010 good

Scores

39
Performance
no change
80
Accessibility
no change
73
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 13.59 s 13.59 s 13.59 s
CLS Cumulative Layout Shift 0 0 0
TBT Total Blocking Time 1.29 s 1.29 s 1.29 s
FCP First Contentful Paint 2.04 s 2.04 s 2.04 s
Speed Index 15.87 s 15.87 s 15.87 s
TTFB Time to First Byte 10.03 s 10.03 s 10.03 s

What LCP is made of

A flat LCP number tells you something regressed. The subparts tell you whether it was the server, resource discovery, the download, or rendering.

time to first byte 10.03 s
element render delay 257 ms
resource load delay 81 ms
resource load duration 51 ms

Field data Chrome UX Report, url-level

Real Chrome users, 28-day trailing window (2026-07-23 → 2026-08-19). This is what Google measures you on.

Metric p75 Rating Distribution (good / needs work / poor)
LCP CWV 1.49 s good 92% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run 108 ms good 96.1% good
CLS CWV 0.010 good 93.2% good
FCP 988 ms good 91.7% good
TTFB 480 ms good 89.2% good

Lab vs field

Lab LCP 13.59 s · field p75 1.49 s · real users are 0.11× faster than the lab.

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-08-15 1.52 s 108 ms 0 990 ms 503 ms
2026-08-08 1.52 s 104 ms 0.010 994 ms 536 ms
2026-08-01 1.55 s 98 ms 0.010 1.05 s 504 ms
2026-07-25 1.59 s 95 ms 0.010 1.09 s 536 ms
2026-07-18 1.55 s 95 ms 0.010 1.08 s 493 ms
2026-07-11 1.56 s 95 ms 0.010 1.07 s 504 ms
2026-07-04 1.55 s 100 ms 0.010 1.08 s 507 ms
2026-06-27 1.53 s 105 ms 0.010 1.02 s 525 ms
2026-06-20 1.52 s 113 ms 0.010 1.05 s 506 ms
2026-06-13 1.49 s 114 ms 0.020 1.04 s 510 ms
2026-06-06 1.39 s 110 ms 0.010 960 ms 487 ms
2026-05-30 1.39 s 108 ms 0.010 972 ms 442 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 3.18 MB 3.18 MB 3.18 MB
Requests 68 68 68
Third-party Weight 2.85 MB 2.85 MB 2.85 MB
Third-party CPU 523 ms 523 ms 523 ms
Unused JS 399.1 kB 399.1 kB 399.1 kB
Unused CSS 49.8 kB 49.8 kB 49.8 kB

By resource type

image 1.80 MB · 9 req
script 1.02 MB · 21 req
other 135.2 kB · 21 req
font 95.1 kB · 4 req
stylesheet 44.9 kB · 8 req
document 15.5 kB · 3 req
third party 2.85 MB · 56 req

Third parties 13 entities

2.85 MB transferred, 523 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Amazon Web Services 1.79 MB · 0 ms CPU
Google Tag Manager 491.2 kB · 221 ms CPU
Facebook 174.0 kB · 114 ms CPU
LiveHelpNow 130.2 kB · 58 ms CPU
Google Fonts 98.5 kB · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 4.96 s 4.96 s 4.96 s
Long Tasks 18 18 18
DOM Elements 735 735 735
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 22 22 22
A11y Failures 5 5 5
A11y Failing Nodes 21 21 21

Main thread work

script evaluation 2.30 s
style layout 993 ms
other 921 ms
script parse compile 357 ms
parse HTML 239 ms
garbage collection 79 ms
paint composite render 69 ms

Axe violations axe-core 4.13.0, full rule set

22 violating nodes across 7 rules, 807 passing. This is a standalone axe run, stricter than the subset Lighthouse folds into its score above — and it is the second tiebreaker in the ranking.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 9 nodes
  • serious link-name — Links must have discernible text 6 nodes
  • critical button-name — Buttons must have discernible text 3 nodes
  • critical aria-allowed-attr — Elements must only use supported ARIA attributes 1 node
  • serious frame-title — Frames must have an accessible name 1 node
  • moderate heading-order — Heading levels should only increase by one 1 node
  • moderate landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 1 node

Accessibility failures 5 of 26 audits

Tracked as a count, not just the score — the weighted score is coarse enough that you can ship a broken component and barely move it.

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 9 nodes
  • link-name — Links do not have a discernible name 6 nodes
  • button-name — Buttons do not have an accessible name 4 nodes
  • aria-allowed-attr — `[aria-*]` attributes do not match their roles 1 node
  • heading-order — Heading elements are not in a sequentially-descending order 1 node

Hygiene

Changes rarely — which is exactly why a change is worth noticing.

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 2 console errors

Measurement log

Every stored run for this URL, newest first. Failures are kept as records — "this site was down on Tuesday" is data too.

When PerfLCPCLSTBTWeight RunsSpreadBenchTook
Aug 21, 2026, 2:34 PM UTC 39 13.59 s 0 1.29 s 3.18 MB 1/3 2,496 93.5s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show strollmag.com's scores, updated whenever this instance re-measures — more about the component. Don’t forget to bundle the speedlify-score.js component code into your site!

<speedlify-score speedlify-url="https://zachleat.github.io/speedlify2/" url="https://www.strollmag.com/"></speedlify-score>