uber.com

https://www.uber.com/

Ranks Overall #1,507 Big Tech #16

Data from Sep 14, 2026, 6:07 PM UTC 13h old Measured every 2 days · 10 runs since Aug 28, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Scoring Calculator · Wayback Machine

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Built with React Router

Uses React

Hosted by Cloudflare

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 9.64 s. Compare this filmstrip against another site.

1.21 s
1.89 s
3.61 s
4.82 s
6.02 s
7.23 s
8.43 s
9.64 s

Lighthouse Scores LAB Simulated

Performance

↓ -3 (-8.6%)

Accessibility

↓ -3 (-3.4%)

100

Best Practices

no change

SEO

no change

Metrics LAB FIELD

Core Web Vitals: failing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-08-16 → 2026-09-12), url-level.

Metric	Lab Simulated	Field
LCP CWV Largest Contentful Paint	23.94 s poor	↑ +9712 ms (+68.3%) significant 14.23 s – 24.12 s	2.70 s needs work	72.2% 14.8% 13%
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—	211 ms needs work	73.3% 20.3% 6.4%
CLS CWV Cumulative Layout Shift	0 good	↓ -0.093 (-100%) significant 0 – 0.099	0.010 good	96% 2.9% 1.2%
TBT Total Blocking Time	1.55 s poor	↑ +394 ms (+34.1%) 1.14 s – 2.09 s	n/a	—
FCP First Contentful Paint	4.55 s poor	↑ +514 ms (+12.7%) significant 2.83 s – 4.55 s	1.32 s good	85.1% 9.4% 5.5%
Speed Index	8.14 s poor	↑ +1371 ms (+20.3%) significant 5.03 s – 8.14 s	n/a	—
TTFB Time to First Byte	639 ms good	↑ +9 ms (+1.4%) 617 ms – 714 ms	798 ms good	75.2% 19.1% 5.7%

Metric

Lab Simulated

Field

Value

Change / range

Trend

p75

Distribution

LCP CWV Largest Contentful Paint

23.94 s poor

↑ +9712 ms (+68.3%) significant 14.23 s – 24.12 s

2.70 s needs work

72.2% 14.8% 13%

INP CWV Interaction to Next Paint — field only, no lab run can measure it

n/a

—

211 ms needs work

73.3% 20.3% 6.4%

CLS CWV Cumulative Layout Shift

0 good

↓ -0.093 (-100%) significant 0 – 0.099

0.010 good

96% 2.9% 1.2%

TBT Total Blocking Time

1.55 s poor

↑ +394 ms (+34.1%) 1.14 s – 2.09 s

n/a

—

FCP First Contentful Paint

4.55 s poor

↑ +514 ms (+12.7%) significant 2.83 s – 4.55 s

1.32 s good

85.1% 9.4% 5.5%

Speed Index

8.14 s poor

↑ +1371 ms (+20.3%) significant 5.03 s – 8.14 s

n/a

—

TTFB Time to First Byte

639 ms good

↑ +9 ms (+1.4%) 617 ms – 714 ms

798 ms good

75.2% 19.1% 5.7%

LCP Subparts LAB Throttled

The subparts attribute LCP to your server, resource discovery, download, or rendering. They come from one throttled load, the same one as the filmstrip, so they add up to that load’s LCP rather than the simulated Lab LCP above.

element render delay 12.84 s

time to first byte 691 ms

LCP LAB Simulated vs LCP FIELD

Lab 23.94 s

Field p75 2.70 s

The lab LCP is 8.87× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric	Value	Change / range
Page Weight	4.73 MB	↓ -7923.7 kB (-63.2%) significant 2.64 MB – 12.87 MB
Requests	95	↓ -13 (-12%) 95 – 123
Third-party Weight	149 kB	↑ +8.7 kB (+6.4%) 139 kB – 214 kB
Third-party CPU	40 ms	↓ -3 ms (-6.1%) 34 ms – 53 ms
Unused JS	761 kB	↓ -7.6 kB (-1%) 757 kB – 769 kB
Unused CSS	0 B	→ no change 0 B – 0 B

Metric

Value

Change / range

Trend

Page Weight

4.73 MB

↓ -7923.7 kB (-63.2%) significant 2.64 MB – 12.87 MB

Requests

↓ -13 (-12%) 95 – 123

Third-party Weight

149 kB

↑ +8.7 kB (+6.4%) 139 kB – 214 kB

Third-party CPU

40 ms

↓ -3 ms (-6.1%) 34 ms – 53 ms

Unused JS

761 kB

↓ -7.6 kB (-1%) 757 kB – 769 kB

Unused CSS

0 B

→ no change 0 B – 0 B

By resource type

Type	Share	Size	Requests
image	63.3%	2.99 MB	28
script	30.4%	1.44 MB	35
font	2.5%	119 kB	4
document	2.2%	102 kB	1
other	1.4%	64.3 kB	25
stylesheet	0.2%	11.7 kB	1
Total		4.73 MB	95

Third parties 3 entities

Entity	Transfer	Size	Main thread Simulated
Other Google APIs/SDKs	script	102 kB	11 ms
Tealium	script	36.9 kB	29 ms
cloudfront.net		9.8 kB	0 ms
Total		149 kB	40 ms

Entity

Transfer

Size

Main thread Simulated

Other Google APIs/SDKs

script

102 kB

11 ms

Tealium

script

36.9 kB

29 ms

cloudfront.net

9.8 kB

0 ms

Total

149 kB

40 ms

Without JavaScript

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

12.3% of pixels differ — parts of the page change. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Page health

Metric	Value	Change / range
Main Thread Work	7.23 s	↑ +271 ms (+3.9%) 6.87 s – 8.62 s
Long Tasks	20	→ no change 19 – 20
DOM Elements	2,271	↓ -287 (-11.2%) significant 2,203 – 2,588
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	12	→ no change 12 – 12
A11y Failures	5	↑ +1 (+25%) significant 4 – 5
A11y Failing Nodes	7	↑ +2 (+40%) significant 5 – 7

Metric

Value

Change / range

Trend

Main Thread Work

7.23 s

↑ +271 ms (+3.9%) 6.87 s – 8.62 s

Long Tasks

→ no change 19 – 20

DOM Elements

2,271

↓ -287 (-11.2%) significant 2,203 – 2,588

Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)

→ no change 12 – 12

A11y Failures

↑ +1 (+25%) significant 4 – 5

A11y Failing Nodes

↑ +2 (+40%) significant 5 – 7

Main thread work

Task	Share	Duration Simulated
script evaluation	63%	4.56 s
other	16%	1.13 s
style layout	8%	554 ms
script parse compile	5%	377 ms
paint composite render	5%	374 ms
garbage collection	2%	138 ms
parse HTML	1%	102 ms
Total		7.23 s

Task

Time

Duration Simulated

script evaluation

63%

4.56 s

other

16%

1.13 s

style layout

554 ms

script parse compile

377 ms

paint composite render

374 ms

garbage collection

138 ms

parse HTML

102 ms

Total

7.23 s

Axe violations axe-core 4.13.0, full rule set

12 violating nodes across 5 rules, 1675 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

minor image-redundant-alt — Alternative text of images should not be repeated as text 6 nodes
serious color-contrast — Elements must meet minimum color contrast ratio thresholds 2 nodes
serious listitem — <li> elements must be contained in a <ul> or <ol> 2 nodes
serious aria-dialog-name — ARIA dialog and alertdialog nodes should have an accessible name 1 node
serious list — <ul> and <ol> must only directly contain <li>, <script> or <template> elements 1 node

Accessibility failures 5 of 36 audits

color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 2 nodes
listitem — List items (`<li>`) are not contained within `<ul>`, `<ol>` or `<menu>` parent elements. 2 nodes
aria-dialog-name — Elements with `role="dialog"` or `role="alertdialog"` do not have accessible names. 1 node
list — Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). 1 node
target-size — Touch targets do not have sufficient size or spacing. 1 node

Best Practices failures 1 of 19 audits

valid-source-maps — Missing source maps for large first-party JavaScript 32 items

SEO failures 1 of 10 audits

link-text — Links do not have descriptive text 3 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Field history 25 weeks

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

Week ending	LCP	INP	CLS	FCP	TTFB
2026-09-05	2.55 s	218 ms	0.010	1.29 s	804 ms
2026-08-29	2.41 s	240 ms	0.010	1.29 s	802 ms
2026-08-22	2.32 s	258 ms	0.010	1.29 s	805 ms
2026-08-15	2.31 s	273 ms	0.010	1.29 s	803 ms
2026-08-08	2.35 s	293 ms	0.010	1.30 s	800 ms
2026-08-01	2.43 s	305 ms	0.010	1.31 s	806 ms
2026-07-25	2.53 s	339 ms	0.010	1.34 s	822 ms
2026-07-18	2.63 s	368 ms	0	1.38 s	840 ms
2026-07-11	2.74 s	390 ms	0	1.41 s	843 ms
2026-07-04	2.79 s	396 ms	0	1.44 s	840 ms
2026-06-27	2.83 s	404 ms	0	1.47 s	824 ms
2026-06-20	2.85 s	424 ms	0	1.46 s	808 ms

Week ending

LCP

INP

CLS

FCP

TTFB

2026-09-05

2.55 s

218 ms

0.010

1.29 s

804 ms

2026-08-29

2.41 s

240 ms

0.010

1.29 s

802 ms

2026-08-22

2.32 s

258 ms

0.010

1.29 s

805 ms

2026-08-15

2.31 s

273 ms

0.010

1.29 s

803 ms

2026-08-08

2.35 s

293 ms

0.010

1.30 s

800 ms

2026-08-01

2.43 s

305 ms

0.010

1.31 s

806 ms

2026-07-25

2.53 s

339 ms

0.010

1.34 s

822 ms

2026-07-18

2.63 s

368 ms

1.38 s

840 ms

2026-07-11

2.74 s

390 ms

1.41 s

843 ms

2026-07-04

2.79 s

396 ms

1.44 s

840 ms

2026-06-27

2.83 s

404 ms

1.47 s

824 ms

2026-06-20

2.85 s

424 ms

1.46 s

808 ms

Runs

Every stored run for this URL, newest first.

When	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took	Archive
Sep 14, 2026, 6:07 PM UTC	32	23.94 s	0	1.55 s	4.73 MB	3/3	±3	2,499 +1%	134.2s	Wayback
Sep 12, 2026, 7:19 AM UTC	35	14.23 s	0.093	1.15 s	12.84 MB	3/3	±3	2,333 -6%	132.1s	Wayback
Sep 10, 2026, 5:43 AM UTC	35	24.12 s	0.007	1.67 s	4.72 MB	3/3	±1	2,366 -5%	60.8s	Wayback
Sep 8, 2026, 1:02 AM UTC	35	15.21 s	0.099	1.31 s	12.87 MB	3/3	±2	2,503 +1%	61.6s	Wayback
Sep 6, 2026, 12:41 AM UTC	36	15.20 s	0.099	1.39 s	12.86 MB	3/3	±2	2,283 -8%	60.4s	Wayback
Sep 4, 2026, 9:23 PM UTC	38	15.86 s	0.007	1.70 s	2.64 MB	3/3	±3	2,336 -6%	60.7s	Wayback
Sep 3, 2026, 7:07 AM UTC	39	16.18 s	0	1.61 s	3.07 MB	3/3	±3	2,487 0%	62.9s	Wayback
Sep 2, 2026, 3:17 AM UTC	40	16.42 s	0.007	1.57 s	3.18 MB	3/3	±5	2,486 0%	62.1s	Wayback
Aug 31, 2026, 10:41 PM UTC	38	21.61 s	0	2.09 s	3.92 MB	3/3	±2	2,403 -3%	62.4s	Wayback
Aug 28, 2026, 5:38 PM UTC	42	19.95 s	0.007	1.14 s	3.75 MB	3/3	±3	2,718 +10%	57.7s	Wayback

When

Scores

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Stack

Filmstrip LAB 🐢 Throttled

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB FIELD

LCP Subparts LAB 🐢 Throttled

LCP LAB 🤖 Simulated vs LCP FIELD

Page weight

By resource type

Third parties 3 entities

Without JavaScript

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 5 of 36 audits

Best Practices failures 1 of 19 audits

SEO failures 1 of 10 audits

Hygiene

Measurement log

Field history 25 weeks

Runs

Filmstrip LAB Throttled

Lighthouse Scores LAB Simulated

LCP Subparts LAB Throttled

LCP LAB Simulated vs LCP FIELD