classic-mahjong.com

Data from Aug 20, 2026, 8:28 PM UTC — 22h old.

11ty Emeritus · 1 measurement · since Aug 20, 2026 · last attempt 22h

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.

Built with Astro 5.17.1

Hosted by Amazon S3

Core Web Vitals field data, url-level

Real Chrome users, 28-day window (2026-07-22 → 2026-08-18). This is what Google measures you on.

LCP 1.97 s good

INP 120 ms good

CLS 0 good

Scores

Performance

no change

100

Accessibility

no change

Best Practices

no change

100

SEO

no change

Lab metrics Lighthouse, mobile

Metric	Current	Previous	Change	Best	Worst
LCP Largest Contentful Paint	4.50 s	—	—	4.50 s	4.50 s
CLS Cumulative Layout Shift	0	—	—	0	0
TBT Total Blocking Time	3.69 s	—	—	3.69 s	3.69 s
FCP First Contentful Paint	2.10 s	—	—	2.10 s	2.10 s
Speed Index	4.68 s	—	—	4.68 s	4.68 s
TTFB Time to First Byte	605 ms	—	—	605 ms	605 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 207 ms

time to first byte 5 ms

Field data Chrome UX Report, url-level

Real Chrome users, 28-day trailing window (2026-07-22 → 2026-08-18). This is what Google measures you on.

Metric	p75	Rating	Distribution (good / needs work / poor)
LCP CWV	1.97 s	good	83.8% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run	120 ms	good	89.7% good
CLS CWV	0	good	99.7% good
FCP	1.16 s	good	87.6% good
TTFB	502 ms	good	87% good

Metric

p75

Rating

Distribution (good / needs work / poor)

LCP CWV

1.97 s

good

83.8% good

INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run

120 ms

good

89.7% good

CLS CWV

good

99.7% good

FCP

1.16 s

good

87.6% good

TTFB

502 ms

good

87% good

Lab vs field

Lab LCP 4.50 s · field p75 1.97 s · real users are 0.44× faster than the lab.

Field history 25 weeks

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

Week ending	LCP	INP	FCP	TTFB
2026-08-15	1.96 s	120 ms	1.17 s	507 ms
2026-08-08	2.01 s	120 ms	1.22 s	524 ms
2026-08-01	2.06 s	119 ms	1.27 s	536 ms
2026-07-25	2.02 s	115 ms	1.24 s	520 ms
2026-07-18	2.03 s	114 ms	1.23 s	517 ms
2026-07-11	2.02 s	116 ms	1.20 s	501 ms
2026-07-04	2.00 s	117 ms	1.18 s	491 ms
2026-06-27	2.00 s	117 ms	1.18 s	491 ms
2026-06-20	2.02 s	119 ms	1.19 s	487 ms
2026-06-13	2.02 s	120 ms	1.18 s	478 ms
2026-06-06	2.05 s	123 ms	1.19 s	479 ms
2026-05-30	2.07 s	124 ms	1.21 s	480 ms

Week ending

LCP

INP

CLS

FCP

TTFB

2026-08-15

1.96 s

120 ms

1.17 s

507 ms

2026-08-08

2.01 s

120 ms

1.22 s

524 ms

2026-08-01

2.06 s

119 ms

1.27 s

536 ms

2026-07-25

2.02 s

115 ms

1.24 s

520 ms

2026-07-18

2.03 s

114 ms

1.23 s

517 ms

2026-07-11

2.02 s

116 ms

1.20 s

501 ms

2026-07-04

2.00 s

117 ms

1.18 s

491 ms

2026-06-27

2.00 s

117 ms

1.18 s

491 ms

2026-06-20

2.02 s

119 ms

1.19 s

487 ms

2026-06-13

2.02 s

120 ms

1.18 s

478 ms

2026-06-06

2.05 s

123 ms

1.19 s

479 ms

2026-05-30

2.07 s

124 ms

1.21 s

480 ms

Page weight

Metric	Current	Previous	Change	Best	Worst
Page Weight	2.89 MB	—	—	2.89 MB	2.89 MB
Requests	128	—	—	128	128
Third-party Weight	2.01 MB	—	—	2.01 MB	2.01 MB
Third-party CPU	646 ms	—	—	646 ms	646 ms
Unused JS	992.2 kB	—	—	992.2 kB	992.2 kB
Unused CSS	0 B	—	—	0 B	0 B

By resource type

script 2.09 MB · 43 req

image 334.1 kB · 17 req

other 268.6 kB · 45 req

font 171.5 kB · 7 req

stylesheet 21.6 kB · 7 req

document 7.4 kB · 3 req

third party 2.03 MB · 99 req

Third parties 22 entities

2.01 MB transferred, 646 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Google Tag Manager 475.9 kB · 160 ms CPU

intergient.com 438.7 kB · 154 ms CPU

Google/Doubleclick Ads 269.0 kB · 58 ms CPU

Facebook 173.2 kB · 94 ms CPU

Amazon Ads 103.1 kB · 62 ms CPU

Page health

Metric	Current	Previous	Change	Best	Worst
Main Thread Work	7.11 s	—	—	7.11 s	7.11 s
Long Tasks	20	—	—	20	20
DOM Elements	442	—	—	442	442
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset	3	—	—	3	3
A11y Failures	0	—	—	0	0
A11y Failing Nodes	0	—	—	0	0

Main thread work

script evaluation 3.45 s

other 2.64 s

script parse compile 573 ms

style layout 229 ms

garbage collection 107 ms

paint composite render 59 ms

parse HTML 58 ms

Axe violations axe-core 4.13.0, full rule set

3 violating nodes across 2 rules, 605 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.

moderate region — All page content should be contained by landmarks 2 nodes
moderate landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 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

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	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took
Aug 20, 2026, 8:28 PM UTC	50	4.50 s	0	3.69 s	2.89 MB	3/3	±6	2,492	48s

When

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Aug 20, 2026, 8:28 PM UTC

4.50 s

3.69 s

2.89 MB

3/3

±6

2,492

48s

Embed this score

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