aws.amazon.com/amplify

https://aws.amazon.com/amplify

Data from Aug 22, 2026, 9:24 PM UTC 24h old

Web Hosts #11 · 3 measurements · since Aug 20, 2026

This URL redirects to https://aws.amazon.com/amplify/.

A trailing slash only, so both forms are treated as one site rather than two — one history, measured once. Lighthouse follows the redirect, so the numbers below describe the canonical page; the only cost is an extra hop on each run.

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.

Se Hosted by Server

Core Web Vitals field data, origin-level

Real Chrome users, 28-day window (2026-07-24 → 2026-08-20). This is what Google measures you on.

LCP 3.98 s needs-improvement

INP 316 ms needs-improvement

CLS 0 good

Scores

Performance

↑ +2 (+7.1%)

Accessibility

no change

Best Practices

no change

SEO

no change

Filmstrip Lighthouse, mobile

How the page drew during the measured load, at 8 points across 5.63 s.

704 ms
1.41 s
2.11 s
2.82 s
3.52 s
4.23 s
4.93 s
5.63 s

Lab metrics Lighthouse, mobile

Metric	Current	Previous	Change	Best	Worst
LCP Largest Contentful Paint	45.87 s	35.78 s	↑ +10086 ms (+28.2%) significant	35.78 s	45.87 s
CLS Cumulative Layout Shift	0	0	→ no change	0	0
TBT Total Blocking Time	1.46 s	1.89 s	↓ -436 ms (-23%)	1.46 s	2.09 s
FCP First Contentful Paint	16.32 s	14.79 s	↑ +1528 ms (+10.3%)	14.79 s	16.32 s
Speed Index	20.86 s	17.37 s	↑ +3492 ms (+20.1%)	15.75 s	20.86 s
TTFB Time to First Byte	688 ms	649 ms	↑ +39 ms (+6%)	632 ms	688 ms

Metric

Current

Change

Best

Worst

Trend

LCP Largest Contentful Paint

45.87 s

35.78 s

↑ +10086 ms (+28.2%) significant

35.78 s

45.87 s

CLS Cumulative Layout Shift

→ no change

TBT Total Blocking Time

1.46 s

1.89 s

↓ -436 ms (-23%)

1.46 s

2.09 s

FCP First Contentful Paint

16.32 s

14.79 s

↑ +1528 ms (+10.3%)

14.79 s

16.32 s

Speed Index

20.86 s

17.37 s

↑ +3492 ms (+20.1%)

15.75 s

20.86 s

TTFB Time to First Byte

688 ms

649 ms

↑ +39 ms (+6%)

632 ms

688 ms

What LCP is made of observed, unthrottled

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

Measured on the trace before throttling is modelled, so these are real durations that will not sum to the 45.87 s above — that figure is a simulation of the same load on a slow phone and connection. Read these for the proportions: which phase dominates.

element render delay 1.92 s

time to first byte 178 ms

resource load delay 176 ms

resource load duration 82 ms

Field data Chrome UX Report, origin-level

Real Chrome users, 28-day trailing window (2026-07-24 → 2026-08-20). This is what Google measures you on.

Metric	p75	Rating	Distribution (good / needs work / poor)
LCP CWV	3.98 s	needs-improvement	50.9% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run	316 ms	needs-improvement	60.6% good
CLS CWV	0	good	89.3% good
FCP	3.65 s	poor	38.6% good
TTFB	1.29 s	needs-improvement	49.2% good

Metric

p75

Rating

Distribution (good / needs work / poor)

LCP CWV

3.98 s

needs-improvement

50.9% good

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

316 ms

needs-improvement

60.6% good

CLS CWV

good

89.3% good

FCP

3.65 s

poor

38.6% good

TTFB

1.29 s

needs-improvement

49.2% good

Lab vs field

Lab LCP 45.87 s · field p75 3.98 s · real users are 0.09× 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	3.91 s	311 ms	3.60 s	1.27 s
2026-08-08	3.84 s	304 ms	3.58 s	1.25 s
2026-08-01	3.81 s	300 ms	3.58 s	1.24 s
2026-07-25	3.79 s	297 ms	3.58 s	1.25 s
2026-07-18	3.82 s	292 ms	3.63 s	1.28 s
2026-07-11	3.85 s	292 ms	3.65 s	1.31 s
2026-07-04	3.88 s	293 ms	3.69 s	1.35 s
2026-06-27	3.90 s	291 ms	3.71 s	1.39 s
2026-06-20	3.90 s	293 ms	3.70 s	1.42 s
2026-06-13	3.88 s	289 ms	3.67 s	1.43 s
2026-06-06	3.78 s	280 ms	3.58 s	1.40 s
2026-05-30	3.67 s	274 ms	3.48 s	1.35 s

Week ending

LCP

INP

CLS

FCP

TTFB

2026-08-15

3.91 s

311 ms

3.60 s

1.27 s

2026-08-08

3.84 s

304 ms

3.58 s

1.25 s

2026-08-01

3.81 s

300 ms

3.58 s

1.24 s

2026-07-25

3.79 s

297 ms

3.58 s

1.25 s

2026-07-18

3.82 s

292 ms

3.63 s

1.28 s

2026-07-11

3.85 s

292 ms

3.65 s

1.31 s

2026-07-04

3.88 s

293 ms

3.69 s

1.35 s

2026-06-27

3.90 s

291 ms

3.71 s

1.39 s

2026-06-20

3.90 s

293 ms

3.70 s

1.42 s

2026-06-13

3.88 s

289 ms

3.67 s

1.43 s

2026-06-06

3.78 s

280 ms

3.58 s

1.40 s

2026-05-30

3.67 s

274 ms

3.48 s

1.35 s

Page weight

Metric	Current	Previous	Change	Best	Worst
Page Weight	11.59 MB	11.45 MB	↑ +134.5 kB (+1.2%)	11.33 MB	11.59 MB
Requests	155	156	↓ -1 (-0.6%)	153	156
Third-party Weight	10.33 MB	10.18 MB	↑ +145.6 kB (+1.5%)	10.06 MB	10.33 MB
Third-party CPU	573 ms	684 ms	↓ -111 ms (-16.3%)	573 ms	755 ms
Unused JS	2.35 MB	2.22 MB	↑ +127.6 kB (+5.9%) significant	2.22 MB	2.35 MB
Unused CSS	339 kB	339 kB	↓ -252 B (-0.1%)	316 kB	339 kB

Metric

Current

Change

Best

Worst

Trend

Page Weight

11.59 MB

11.45 MB

↑ +134.5 kB (+1.2%)

11.33 MB

11.59 MB

Requests

155

156

↓ -1 (-0.6%)

153

156

Third-party Weight

10.33 MB

10.18 MB

↑ +145.6 kB (+1.5%)

10.06 MB

10.33 MB

Third-party CPU

573 ms

684 ms

↓ -111 ms (-16.3%)

573 ms

755 ms

Unused JS

2.35 MB

2.22 MB

↑ +127.6 kB (+5.9%) significant

2.22 MB

2.35 MB

Unused CSS

339 kB

↓ -252 B (-0.1%)

316 kB

339 kB

By resource type

script 6.46 MB · 54 req

image 4.16 MB · 31 req

stylesheet 347 kB · 15 req

font 269 kB · 5 req

document 117 kB · 2 req

media 48.4 kB · 1 req

other 35.7 kB · 39 req

third party 11.44 MB · 147 req

Third parties 5 entities

10.33 MB transferred, 573 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

awsstatic.com 8.71 MB · 310 ms CPU

aws.dev 1.61 MB · 263 ms CPU

Adobe Experience Cloud 3.1 kB · 0 ms CPU

api.aws 955 B · 0 ms CPU

clrt.ai 251 B · 0 ms CPU

Page health

Metric	Current	Previous	Change	Best	Worst
Main Thread Work	8.91 s	10.09 s	↓ -1174 ms (-11.6%)	8.91 s	10.94 s
Long Tasks	20	20	→ no change	20	20
DOM Elements	2,378	2,391	↓ -13 (-0.5%)	2,378	2,391
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset	5	5	→ no change	5	5
A11y Failures	2	2	→ no change	2	2
A11y Failing Nodes	2	2	→ no change	2	2

Main thread work

script evaluation 4.05 s

other 2.82 s

script parse compile 666 ms

style layout 649 ms

paint composite render 396 ms

garbage collection 175 ms

parse HTML 160 ms

Axe violations axe-core 4.13.0, full rule set

5 violating nodes across 4 rules, 1869 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
minor aria-allowed-role — ARIA role should be appropriate for the element 1 node
serious link-name — Links must have discernible text 1 node
serious list — <ul> and <ol> must only directly contain <li>, <script> or <template> elements 1 node

Accessibility failures 2 of 29 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.

button-name — Buttons do not have an accessible name 1 node
link-name — Links do not have a discernible name 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 9 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	Perf	LCP	TBT	Weight	Runs	Spread	Bench	Took
Aug 22, 2026, 9:24 PM UTC	30	45.87 s	1.46 s	11.59 MB	3/3	±2	2,675	74.6s
Aug 21, 2026, 8:33 PM UTC	28	35.78 s	1.89 s	11.45 MB	3/3	±3	2,449	79.7s
Aug 20, 2026, 4:37 PM UTC	27	36.05 s	2.09 s	11.33 MB	3/3	±1	2,435	82.9s

When

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Aug 22, 2026, 9:24 PM UTC

45.87 s

1.46 s

11.59 MB

3/3

±2

2,675

74.6s

Aug 21, 2026, 8:33 PM UTC

35.78 s

1.89 s

11.45 MB

3/3

±3

2,449

79.7s

Aug 20, 2026, 4:37 PM UTC

36.05 s

2.09 s

11.33 MB

3/3

±1

2,435

82.9s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show aws.amazon.com/amplify's scores, updated whenever this instance re-measures — more about the component. Don’t forget to bundle the speedlify2-score.js component code into your site!

<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://aws.amazon.com/amplify"></speedlify2-score>