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 ·

syntackle.com

https://syntackle.com/

96 100 100 100 ✓CWV 0AXE

Data from Aug 21, 2026, 8:43 AM UTC — 10h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 10h

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.

Eleventy 3.1.6 Built with Eleventy 3.1.6
Vercel Hosted by Vercel

Core Web Vitals field data, origin-level

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

LCP 1.42 s good
INP — no data
CLS 0.050 good

Scores

96
Performance
no change
100
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 2.40 s — — 2.40 s 2.40 s
CLS Cumulative Layout Shift 0 — — 0 0
TBT Total Blocking Time 96 ms — — 96 ms 96 ms
FCP First Contentful Paint 1.67 s — — 1.67 s 1.67 s
Speed Index 1.67 s — — 1.67 s 1.67 s
TTFB Time to First Byte 601 ms — — 601 ms 601 ms

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.

element render delay 99 ms
time to first byte 22 ms

Field data Chrome UX Report, origin-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 1.42 s good 92.4% good
CLS CWV 0.050 good 90.3% good
FCP 1.27 s good 89.1% good
TTFB 494 ms good 85% good

Lab vs field

Lab LCP 2.40 s · field p75 1.42 s · real users are 0.59× 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 1.32 s — 0.050 1.23 s 463 ms
2026-08-08 1.23 s — 0.050 1.17 s 463 ms
2026-08-01 1.27 s — 0.050 1.17 s 507 ms
2026-07-25 1.27 s — 0.050 1.22 s 576 ms
2026-07-18 1.21 s — 0.040 1.17 s 566 ms
2026-07-11 1.17 s — 0.040 1.11 s 534 ms
2026-07-04 1.17 s — 0.040 1.12 s 575 ms
2026-06-27 1.17 s — 0.040 1.12 s 566 ms
2026-06-20 1.19 s — 0.040 1.16 s 521 ms
2026-06-13 1.14 s — 0.040 1.15 s 420 ms
2026-06-06 1.14 s — 0.040 1.10 s 416 ms
2026-05-30 1.20 s — 0.050 1.15 s 420 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 792.8 kB — — 792.8 kB 792.8 kB
Requests 107 — — 107 107
Third-party Weight 208.1 kB — — 208.1 kB 208.1 kB
Third-party CPU 86 ms — — 86 ms 86 ms
Unused JS 98.8 kB — — 98.8 kB 98.8 kB
Unused CSS 10.5 kB — — 10.5 kB 10.5 kB

By resource type

other 391.8 kB · 75 req
script 221.6 kB · 12 req
font 127.7 kB · 6 req
image 18.0 kB · 7 req
document 15.3 kB · 2 req
stylesheet 14.4 kB · 3 req
third party 536.2 kB · 17 req

Third parties 3 entities

208.1 kB transferred, 86 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

posthog.com 188.0 kB · 81 ms CPU
ethicalads.io 15.3 kB · 4 ms CPU
JSDelivr CDN 4.8 kB · 1 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 1.02 s — — 1.02 s 1.02 s
Long Tasks 2 — — 2 2
DOM Elements 225 — — 225 225
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 0 — — 0 0
A11y Failures 0 — — 0 0
A11y Failing Nodes 0 — — 0 0

Main thread work

script evaluation 604 ms
other 258 ms
style layout 72 ms
script parse compile 64 ms
parse HTML 18 ms
paint composite render 9 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 480 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.

Hygiene

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

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

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, 8:43 AM UTC 96 2.40 s 0 96 ms 792.8 kB 3/3 ±37 3,368 27.9s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show syntackle.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://syntackle.com/"></speedlify-score>