perplexity.ai

https://www.perplexity.ai/

Ranks Overall #1,722 Developer Tooling #82 Next.js Showcase #14 AI #7

Data from Oct 16, 2026, 12:12 AM UTC 21h old Measured every 2 days · 21 runs since Aug 31, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · 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

Uses React

Hosted by Cloudflare

Filmstrip LAB Unthrottled

How the page drew during the measured load, at 8 points across 3.00 s. Compare this filmstrip against another site.

375 ms
750 ms
1.13 s
1.50 s
1.88 s
2.25 s
2.63 s
3.00 s

Lighthouse Scores LAB Simulated

Performance

↑ +2 (+6.9%)

Accessibility

no change

Best Practices

↑ +19 (+24.7%)

100

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 (2026-09-16 → 2026-10-13), url-level.

Metric	Lab Simulated	Field
LCP CWV Largest Contentful Paint	16.89 s poor	↓ -244 ms (-1.4%) 12.70 s – 17.71 s	6.87 s poor	29.1% 23.3% 47.6%
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—	515 ms poor	33.8% 40.3% 26%
CLS CWV Cumulative Layout Shift	0 good	→ no change 0 – 0	0.010 good	95.1% 2.3% 2.7%
TBT Total Blocking Time	1.57 s poor	↓ -350 ms (-18.2%) 685 ms – 2.44 s	n/a	—
FCP First Contentful Paint	8.71 s poor	↓ -170 ms (-1.9%) 8.22 s – 10.00 s	4.95 s poor	23.6% 26.6% 49.8%
Speed Index	8.71 s poor	↓ -170 ms (-1.9%) 8.22 s – 10.00 s	n/a	—
TTFB Time to First Byte	517 ms good	↑ +39 ms (+8.2%) 458 ms – 698 ms	787 ms good	75.4% 15.9% 8.7%

Metric

Lab Simulated

Field

Value

Change / range

Trend

p75

Distribution

LCP CWV Largest Contentful Paint

16.89 s poor

↓ -244 ms (-1.4%) 12.70 s – 17.71 s

6.87 s poor

29.1% 23.3% 47.6%

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

n/a

—

515 ms poor

33.8% 40.3% 26%

CLS CWV Cumulative Layout Shift

0 good

→ no change 0 – 0

0.010 good

95.1% 2.3% 2.7%

TBT Total Blocking Time

1.57 s poor

↓ -350 ms (-18.2%) 685 ms – 2.44 s

n/a

—

FCP First Contentful Paint

8.71 s poor

↓ -170 ms (-1.9%) 8.22 s – 10.00 s

4.95 s poor

23.6% 26.6% 49.8%

Speed Index

8.71 s poor

↓ -170 ms (-1.9%) 8.22 s – 10.00 s

n/a

—

TTFB Time to First Byte

517 ms good

↑ +39 ms (+8.2%) 458 ms – 698 ms

787 ms good

75.4% 15.9% 8.7%

LCP Subparts LAB Unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is a simulated throttled estimate.

element render delay 1.48 s

time to first byte 32 ms

LCP LAB Simulated vs LCP FIELD

Lab 16.89 s

Field p75 6.87 s

The lab LCP is 2.46× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric	Value	Change / range
Page Weight	2.34 MB	↓ -10.9 kB (-0.5%) 2.16 MB – 2.46 MB
Requests	133	↓ -7 (-5%) 119 – 148
Third-party Weight	508 kB	↑ +4.4 kB (+0.9%) 321 kB – 508 kB
Third-party CPU	6 ms	↑ +0 ms (+3.6%) 4 ms – 8 ms
Unused JS	485 kB	↑ +23.1 kB (+5.1%) significant 313 kB – 535 kB
Unused CSS	60.3 kB	↑ +308 B (+0.5%) 0 B – 76.5 kB

Metric

Value

Change / range

Trend

Page Weight

2.34 MB

↓ -10.9 kB (-0.5%) 2.16 MB – 2.46 MB

Requests

133

↓ -7 (-5%) 119 – 148

Third-party Weight

508 kB

↑ +4.4 kB (+0.9%) 321 kB – 508 kB

Third-party CPU

6 ms

↑ +0 ms (+3.6%) 4 ms – 8 ms

Unused JS

485 kB

↑ +23.1 kB (+5.1%) significant 313 kB – 535 kB

Unused CSS

60.3 kB

↑ +308 B (+0.5%) 0 B – 76.5 kB

By resource type

Type	Share	Size	Requests
script	55.9%	1.31 MB	96
other	21.8%	510 kB	25
font	17.8%	416 kB	3
stylesheet	3%	71.3 kB	1
image	1.2%	27.9 kB	2
document	0.3%	7.7 kB	2
Total		2.34 MB	133

Third parties 4 entities

Entity	Transfer	Size	Main thread Simulated
eppo.cloud	other	496 kB	0 ms
Cloudflare		10.3 kB	6 ms
browser-intake-datadoghq.com		956 B	0 ms
singular.net		747 B	0 ms
Total		508 kB	6 ms

Entity

Transfer

Size

Main thread Simulated

eppo.cloud

other

496 kB

0 ms

Cloudflare

10.3 kB

6 ms

browser-intake-datadoghq.com

956 B

0 ms

singular.net

747 B

0 ms

Total

508 kB

6 ms

Without JavaScript

This page is client rendered.

Nothing was painted until the scripts ran. This is a web performance and robustness issue!

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

75% of pixels differ — the page changes substantially. 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	5.75 s	↓ -1008 ms (-14.9%) 3.91 s – 10.41 s
Long Tasks	18	↓ -2 (-10%) significant 13 – 20
DOM Elements	1,592	↓ -3 (-0.2%) 1,571 – 1,602
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	3	→ no change 2 – 3
A11y Failures	2	→ no change 2 – 5
A11y Failing Nodes	2	→ no change 2 – 5

Metric

Value

Change / range

Trend

Main Thread Work

5.75 s

↓ -1008 ms (-14.9%) 3.91 s – 10.41 s

Long Tasks

↓ -2 (-10%) significant 13 – 20

DOM Elements

1,592

↓ -3 (-0.2%) 1,571 – 1,602

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

→ no change 2 – 3

A11y Failures

→ no change 2 – 5

A11y Failing Nodes

→ no change 2 – 5

Main thread work

Task	Share	Duration Simulated
script evaluation	67%	3.86 s
other	22%	1.27 s
style layout	4%	257 ms
garbage collection	3%	160 ms
parse HTML	2%	136 ms
script parse compile	1%	50 ms
paint composite render	0%	19 ms
Total		5.75 s

Task

Time

Duration Simulated

script evaluation

67%

3.86 s

other

22%

1.27 s

style layout

257 ms

garbage collection

160 ms

parse HTML

136 ms

script parse compile

50 ms

paint composite render

19 ms

Total

5.75 s

Axe violations axe-core 4.13.0, full rule set

3 violating nodes across 3 rules, 224 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

serious color-contrast — Elements must meet minimum color contrast ratio thresholds 1 node

Offending element

.origin-left

<div class="origin-left rtl:origin-right" style="opacity: 1; filter: blur(0px); transform: scale(1); position: absolute; inset: 0px;">Ask anything…</div>

minor empty-heading — Headings should not be empty 1 node
Offending element
1. #radix-_r_10_
```
<h2 id="radix-_r_10_"></h2>
```

serious svg-img-alt — <svg> elements with an img or image role must have alternative text 1 node

Offending element

svg[width="24"]

<svg role="img" class="inline-flex fill-current shrink-0" width="24" height="24" stroke-width="1.75"><use xlink:href="#pplx-icon-brand-android"></use></svg>

Accessibility failures 2 of 25 audits

color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 1 node
svg-img-alt — SVG elements with an `img` role do not have an accessible text alternative 1 node

Best Practices failures 1 of 16 audits

errors-in-console — Browser errors were logged to the console 1 item

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h3 1 console error

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
2026-10-10	6.83 s	512 ms	0.010	4.91 s	786 ms
2026-10-03	6.65 s	493 ms	0.010	4.77 s	783 ms
2026-09-26	6.47 s	470 ms	0.020	4.66 s	783 ms
2026-09-19	6.30 s	459 ms	0.030	4.55 s	771 ms
2026-09-12	6.15 s	449 ms	0.050	4.45 s	756 ms
2026-09-05	6.12 s	445 ms	0.050	4.45 s	737 ms
2026-08-29	5.90 s	444 ms	0.050	4.30 s	712 ms
2026-08-22	5.79 s	443 ms	0.050	4.21 s	702 ms
2026-08-15	5.69 s	444 ms	0.050	4.13 s	695 ms
2026-08-08	5.21 s	463 ms	0.040	3.67 s	677 ms
2026-08-01	5.22 s	478 ms	0.030	3.57 s	674 ms
2026-07-25	5.38 s	480 ms	0.030	3.57 s	678 ms

Week ending

LCP

INP

CLS

FCP

TTFB

2026-10-10

6.83 s

512 ms

0.010

4.91 s

786 ms

2026-10-03

6.65 s

493 ms

0.010

4.77 s

783 ms

2026-09-26

6.47 s

470 ms

0.020

4.66 s

783 ms

2026-09-19

6.30 s

459 ms

0.030

4.55 s

771 ms

2026-09-12

6.15 s

449 ms

0.050

4.45 s

756 ms

2026-09-05

6.12 s

445 ms

0.050

4.45 s

737 ms

2026-08-29

5.90 s

444 ms

0.050

4.30 s

712 ms

2026-08-22

5.79 s

443 ms

0.050

4.21 s

702 ms

2026-08-15

5.69 s

444 ms

0.050

4.13 s

695 ms

2026-08-08

5.21 s

463 ms

0.040

3.67 s

677 ms

2026-08-01

5.22 s

478 ms

0.030

3.57 s

674 ms

2026-07-25

5.38 s

480 ms

0.030

3.57 s

678 ms

Runs

Every stored run for this URL, newest first.

When	Perf	LCP	TBT	Weight	Runs	Spread	Bench	Took	Archive
Oct 16, 2026, 12:12 AM UTC	31	16.89 s	1.57 s	2.34 MB	3/3	±52	2,752 +11%	92.2s	Wayback
Oct 13, 2026, 10:00 PM UTC	29	17.14 s	1.92 s	2.36 MB	2/3	±0	2,476 0%	79s	Wayback
Oct 9, 2026, 3:04 AM UTC	31	17.49 s	1.38 s	2.37 MB	2/3	±51	2,484 0%	81.8s	Wayback
Oct 6, 2026, 11:06 PM UTC	36	12.70 s	910 ms	2.37 MB	3/3	±4	3,406 +37%	79.6s	Wayback
Oct 3, 2026, 8:50 PM UTC	32	16.97 s	1.33 s	2.27 MB	3/3	±0	2,999 +21%	77s	Wayback
Oct 1, 2026, 2:13 PM UTC	30	17.71 s	1.70 s	2.46 MB	2/3	±32	2,991 +20%	137.2s	Wayback
Sep 29, 2026, 11:19 AM UTC	30	14.44 s	1.68 s	2.44 MB	2/3	±54	3,004 +21%	119s	Wayback
Sep 25, 2026, 4:37 PM UTC	31	16.85 s	1.44 s	2.28 MB	2/3	±1	2,852 +15%	128.7s	Wayback
Sep 23, 2026, 10:53 AM UTC	30	16.73 s	1.58 s	2.22 MB	3/3	±2	2,485 0%	135.5s	Wayback
Sep 21, 2026, 7:43 AM UTC	28	13.28 s	2.44 s	2.28 MB	2/3	±3	2,459 -1%	124.7s	Wayback
Sep 18, 2026, 1:39 PM UTC	29	13.16 s	1.99 s	2.29 MB	2/3	±1	2,444 -2%	127.6s	Wayback
Sep 16, 2026, 9:13 AM UTC	40	16.33 s	685 ms	2.21 MB	3/3	±4	3,906 +57%	115.2s	Wayback
Sep 14, 2026, 5:55 AM UTC	31	15.44 s	1.47 s	2.21 MB	3/3	±2	2,205 -11%	248.4s	Wayback
Sep 11, 2026, 11:14 PM UTC	31	15.29 s	1.49 s	2.21 MB	3/3	±2	2,415 -3%	131.8s	Wayback
Sep 9, 2026, 8:39 PM UTC	32	14.93 s	1.29 s	2.18 MB	3/3	±0	3,185 +28%	201.6s	Wayback
Sep 7, 2026, 7:16 PM UTC	31	15.26 s	1.46 s	2.16 MB	3/3	±2	2,328 -6%	208.5s	Wayback
Sep 5, 2026, 8:05 AM UTC	30	17.32 s	1.63 s	2.44 MB	3/3	±2	2,305 -7%	90.4s	Wayback
Sep 4, 2026, 12:59 AM UTC	34	15.81 s	1.07 s	2.37 MB	3/3	±1	3,029 +22%	85.7s	Wayback
Sep 2, 2026, 11:09 PM UTC	30	16.37 s	1.56 s	2.36 MB	3/3	±1	2,207 -11%	91.3s	Wayback
Sep 1, 2026, 10:42 PM UTC	31	15.38 s	1.37 s	2.23 MB	3/3	±2	2,302 -7%	89.8s	Wayback
Aug 31, 2026, 9:00 PM UTC	30	15.95 s	1.67 s	2.28 MB	3/3	±3	2,409 -3%	93.5s	Wayback

When

Scores

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Archive

Oct 16, 2026, 12:12 AM UTC

16.89 s

1.57 s

2.34 MB

3/3

±52

2,752 +11%

92.2s

Wayback

Oct 13, 2026, 10:00 PM UTC

17.14 s

1.92 s

2.36 MB

2/3

±0

2,476 0%

79s

Wayback

Oct 9, 2026, 3:04 AM UTC

17.49 s

1.38 s

2.37 MB

2/3

±51

2,484 0%

81.8s

Wayback

Oct 6, 2026, 11:06 PM UTC

12.70 s

910 ms

2.37 MB

3/3

±4

3,406 +37%

79.6s

Wayback

Oct 3, 2026, 8:50 PM UTC

16.97 s

1.33 s

2.27 MB

3/3

±0

2,999 +21%

77s

Wayback

Oct 1, 2026, 2:13 PM UTC

17.71 s

1.70 s

2.46 MB

2/3

±32

2,991 +20%

137.2s

Wayback

Sep 29, 2026, 11:19 AM UTC

14.44 s

1.68 s

2.44 MB

2/3

±54

3,004 +21%

119s

Wayback

Sep 25, 2026, 4:37 PM UTC

16.85 s

1.44 s

2.28 MB

2/3

±1

2,852 +15%

128.7s

Wayback

Sep 23, 2026, 10:53 AM UTC

16.73 s

1.58 s

2.22 MB

3/3

±2

2,485 0%

135.5s

Wayback

Sep 21, 2026, 7:43 AM UTC

13.28 s

2.44 s

2.28 MB

2/3

±3

2,459 -1%

124.7s

Wayback

Sep 18, 2026, 1:39 PM UTC

13.16 s

1.99 s

2.29 MB

2/3

±1

2,444 -2%

127.6s

Wayback

Sep 16, 2026, 9:13 AM UTC

16.33 s

685 ms

2.21 MB

3/3

±4

3,906 +57%

115.2s

Wayback

Sep 14, 2026, 5:55 AM UTC

15.44 s

1.47 s

2.21 MB

3/3

±2

2,205 -11%

248.4s

Wayback

Sep 11, 2026, 11:14 PM UTC

15.29 s

1.49 s

2.21 MB

3/3

±2

2,415 -3%

131.8s

Wayback

Sep 9, 2026, 8:39 PM UTC

14.93 s

1.29 s

2.18 MB

3/3

±0

3,185 +28%

201.6s

Wayback

Sep 7, 2026, 7:16 PM UTC

15.26 s

1.46 s

2.16 MB

3/3

±2

2,328 -6%

208.5s

Wayback

Sep 5, 2026, 8:05 AM UTC

17.32 s

1.63 s

2.44 MB

3/3

±2

2,305 -7%

90.4s

Wayback

Sep 4, 2026, 12:59 AM UTC

15.81 s

1.07 s

2.37 MB

3/3

±1

3,029 +22%

85.7s

Wayback

Sep 2, 2026, 11:09 PM UTC

16.37 s

1.56 s

2.36 MB

3/3

±1

2,207 -11%

91.3s

Wayback

Sep 1, 2026, 10:42 PM UTC

15.38 s

1.37 s

2.23 MB

3/3

±2

2,302 -7%

89.8s

Wayback

Aug 31, 2026, 9:00 PM UTC

15.95 s

1.67 s

2.28 MB

3/3

±3

2,409 -3%

93.5s

Wayback

Stack

Filmstrip LAB 🐇 Unthrottled

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB FIELD

LCP Subparts LAB 🐇 Unthrottled

LCP LAB 🤖 Simulated vs LCP FIELD

Page weight

By resource type

Third parties 4 entities

Without JavaScript

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 2 of 25 audits

Best Practices failures 1 of 16 audits

Hygiene

Measurement log

Field history 25 weeks

Runs

Filmstrip LAB Unthrottled

Lighthouse Scores LAB Simulated

LCP Subparts LAB Unthrottled

LCP LAB Simulated vs LCP FIELD