Luxury Fashion Website Carbon, CWV & PageSpeed Comparison

In our April audit, we’ve identified a critical disconnect between high-end craftsmanship and digital execution. An 87.5% failure rate in Core Web Vitals, combined with a staggering 93.1% failure to reach perfect accessibility, suggests that luxury brands are inadvertently creating an "exclusive" experience that is actually exclusionary.

True luxury should be defined by seamless, inclusive elegance. By neglecting accessibility, brands are diluting their equity and failing to meet the sophisticated digital standards of the modern consumer. The 5% of leaders who have optimised their stack have proven that high-fidelity visuals do not have to come at the cost of performance or inclusivity.

Industry Snapshot (April 2026)

CWV Failure Rate

Mobile: 87.5%

Desktop: 79.2%

Accessibility (Perfect 100)

Mobile: Only 6.9%

Desktop: Only 5.6%

Avg. Carbon (CO2e)

Mobile: 3.27g

Desktop: 3.79g

Find out how your site is performing with SiteBeacon.

Serial	URL
01	fentybeauty.com	Failed	8.932 g	3	92	100	73	Very Poor
02	gb.maxmara.com	Failed	2.221 g	43	85	70	77	Very Poor
03	int.balmain.com/en	Failed	1.344 g	33	100	84	96	Very Poor
04	laperla.com	Failed	5.746 g	N/A	82	100	77	Very Poor
05	malo.com	Failed	7.537 g	32	100	83	92	Very Poor
06	uk.diesel.com/en	Failed	1.580 g	33	100	89	73	Very Poor
07	uk.mcmworldwide.com/en_GB/home	Failed	0.417 g	43	85	75	96	Good
08	us.canali.com	Passed	4.787 g	26	100	79	54	Very Poor
09	us.jimmychoo.com/en/home	Failed	2.238 g	29	92	91	100	Very Poor
10	us.lanvin.com	Failed	9.390 g	30	100	96	92	Very Poor
11	us.louisvuitton.com/eng-us/homep...	Failed	0.096 g	97	42	94	92	Excellent
12	www.alexandermcqueen.com/en-gb	Failed	3.111 g	26	92	93	96	Very Poor
13	www.andrelaug.com	N/A	0.496 g	62	100	93	100	Moderate
14	www.audemarspiguet.com/com/en/ho...	Failed	8.001 g	30	92	88	81	Very Poor
15	www.berluti.com/en-int/homepage	Failed	5.519 g	39	92	79	54	Very Poor
16	www.borsalino.com/us_en	Failed	2.864 g	27	92	70	85	Very Poor
17	www.bottegaveneta.com/en-gb	Passed	1.419 g	41	85	82	96	Very Poor
18	www.braccialini.it/en/GB/home	Failed	1.244 g	43	92	81	100	Very Poor
19	www.brioni.com/en/us	Failed	2.093 g	37	92	90	96	Very Poor
20	www.brunellocucinelli.com/en/hom...	Failed	1.299 g	58	100	88	77	Very Poor
21	www.bulgari.com/en-gb	Failed	1.009 g	54	100	100	100	Very Poor
22	www.burberry.com	Passed	0.283 g	62	82	88	77	Very Good
23	www.cartier.com/nl-be	Failed	1.421 g	17	85	84	77	Very Poor
24	www.celine.com/en-us/home	Failed	2.611 g	5	77	77	100	Very Poor
25	www.cesareattolini.com	Failed	9.013 g	35	100	95	96	Very Poor
26	www.chanel.com/be-fr	Failed	0.752 g	19	92	100	96	Poor
27	www.corneliani.com	Failed	5.735 g	34	100	96	73	Very Poor
28	www.dkny.com	Failed	1.448 g	49	92	89	69	Very Poor
29	www.escada.com	Passed	1.147 g	49	85	84	92	Very Poor
30	www.etro.com/gb-en	Failed	2.005 g	28	92	99	96	Very Poor
31	www.fendi.com/gb-en	Failed	2.014 g	66	100	100	100	Very Poor
32	www.fiorucci.com	Failed	1.528 g	40	77	84	92	Very Poor
33	www.franckmuller.com	Failed	2.872 g	27	92	95	96	Very Poor
34	www.furla.com/us/en	Failed	1.360 g	31	100	83	92	Very Poor
35	www.genny.com	Failed	1.081 g	84	100	87	96	Very Poor
36	www.gucci.com/uk/en_gb	Failed	1.408 g	5	92	92	96	Very Poor
37	www.hugoboss.com/uk/home	Passed	1.159 g	28	92	87	81	Very Poor
38	www.isaia.it	Failed	1.474 g	30	100	97	92	Very Poor
39	www.jerome-dreyfuss.com/en	Failed	1.160 g	46	92	89	92	Very Poor
40	www.jilsander.com/en-us	Failed	1.998 g	44	92	75	73	Very Poor
41	www.kenzo.com/en-gb/home	Failed	2.004 g	36	100	89	81	Very Poor
42	www.lardini.com	Failed	1.367 g	52	92	92	77	Very Poor
43	www.larusmiani.it	Failed	1.963 g	49	100	89	96	Very Poor
44	www.loewe.com/eur/es/home	Failed	1.393 g	33	100	87	92	Very Poor
45	www.lucianobarbera.com	Failed	3.411 g	50	85	86	92	Very Poor
46	www.marcjacobs.com/us-en/homepag...	Failed	3.485 g	44	92	89	73	Very Poor
47	www.marianorubinacci.com/it	Passed	2.086 g	41	85	89	100	Very Poor
48	www.marni.com/en-us	Failed	2.240 g	36	100	84	73	Very Poor
49	www.michaelkors.global/au/en	Failed	3.158 g	33	100	90	77	Very Poor
50	www.miumiu.com/fi/en.html	Failed	4.266 g	28	85	76	54	Very Poor
51	www.moschino.com	Failed	2.922 g	31	85	75	54	Very Poor
52	www.moynat.com	Failed	10.944 g	41	92	73	92	Very Poor
53	www.ninaricci.com/en-us	Failed	3.851 g	26	100	84	77	Very Poor
54	www.omegawatches.com	Failed	1.992 g	38	100	97	96	Very Poor
55	www.oscardelarenta.com	Passed	2.702 g	40	92	97	92	Very Poor
56	www.palzileri.com/uk	N/A	0.881 g	38	92	92	92	Very Poor
57	www.paulsmith.com	Failed	1.516 g	27	92	93	88	Very Poor
58	www.paulstuart.com	Failed	0.003 g	100	36	96	96	Excellent
59	www.pinko.com/it-it	Failed	4.281 g	31	100	90	96	Very Poor
60	www.piquadro.com	Failed	16.920 g	28	92	97	73	Very Poor
61	www.pomellato.com/gb_en	Failed	17.506 g	17	92	73	100	Very Poor
62	www.prada.com/gb/en.html	Failed	4.663 g	29	85	71	96	Very Poor
63	www.ralphlauren.com	Failed	3.611 g	29	83	75	54	Very Poor
64	www.rolex.com	Failed	1.588 g	28	92	86	58	Very Poor
65	www.rouje.com	Failed	2.014 g	36	92	60	88	Very Poor
66	www.tiffany.com	Failed	10.663 g	35	92	78	73	Very Poor
67	www.tomfordfashion.com	Failed	2.119 g	32	92	89	96	Very Poor
68	www.toryburch.com/en-gb	Failed	3.986 g	36	92	82	96	Very Poor
69	www.verawang.com	Failed	1.162 g	61	92	87	96	Very Poor
70	www.versace.com/us/en	Failed	2.128 g	30	92	77	54	Very Poor
71	www.ysl.com/en-gb	Failed	1.381 g	45	92	96	96	Very Poor
72	www.zegna.com/us-en	Failed	1.639 g	34	92	81	50	Very Poor

Serial

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