notion.com

https://www.notion.com/

Ranks Overall #1,434 Next.js Showcase #6

Data from Sep 22, 2026, 3:29 AM UTC 18h old Measured once a week · 1 run since Sep 22, 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

Built with Next.js

Uses React

Hosted by Vercel

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 12.95 s. Compare this filmstrip against another site.

1.62 s
3.24 s
3.29 s
6.48 s
8.10 s
9.71 s
11.33 s
12.95 s

Lighthouse Scores LAB Simulated

Performance

no change

Accessibility

no change

Best Practices

no change

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 (2026-08-24 → 2026-09-20), url-level.

Metric	Lab Simulated	Field
LCP CWV Largest Contentful Paint	12.19 s poor	— 12.19 s – 12.19 s	2.47 s good	75.2% 14% 10.9%
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—	254 ms needs work	65% 27.1% 7.9%
CLS CWV Cumulative Layout Shift	0.001 good	— 0.001 – 0.001	0 good	96.2% 3.3% 0.5%
TBT Total Blocking Time	2.77 s poor	— 2.77 s – 2.77 s	n/a	—
FCP First Contentful Paint	3.02 s poor	— 3.02 s – 3.02 s	2.42 s needs work	59.9% 23.4% 16.7%
Speed Index	8.58 s poor	— 8.58 s – 8.58 s	n/a	—
TTFB Time to First Byte	630 ms good	— 630 ms – 630 ms	1.37 s needs work	42.1% 41.2% 16.8%

Metric

Lab Simulated

Field

Value

Change / range

Trend

p75

Distribution

LCP CWV Largest Contentful Paint

12.19 s poor

— 12.19 s – 12.19 s

2.47 s good

75.2% 14% 10.9%

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

n/a

—

254 ms needs work

65% 27.1% 7.9%

CLS CWV Cumulative Layout Shift

0.001 good

— 0.001 – 0.001

0 good

96.2% 3.3% 0.5%

TBT Total Blocking Time

2.77 s poor

— 2.77 s – 2.77 s

n/a

—

FCP First Contentful Paint

3.02 s poor

— 3.02 s – 3.02 s

2.42 s needs work

59.9% 23.4% 16.7%

Speed Index

8.58 s poor

— 8.58 s – 8.58 s

n/a

—

TTFB Time to First Byte

630 ms good

— 630 ms – 630 ms

1.37 s needs work

42.1% 41.2% 16.8%

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 2.42 s

time to first byte 870 ms

LCP LAB Simulated vs LCP FIELD

Lab 12.19 s

Field p75 2.47 s

The lab LCP is 4.93× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric	Value	Change / range
Page Weight	3.54 MB	— 3.54 MB – 3.54 MB
Requests	260	— 260 – 260
Third-party Weight	1.49 MB	— 1.49 MB – 1.49 MB
Third-party CPU	700 ms	— 700 ms – 700 ms
Unused JS	915 kB	— 915 kB – 915 kB
Unused CSS	44.4 kB	— 44.4 kB – 44.4 kB

Metric

Value

Change / range

Trend

Page Weight

3.54 MB

— 3.54 MB – 3.54 MB

Requests

260

— 260 – 260

Third-party Weight

1.49 MB

— 1.49 MB – 1.49 MB

Third-party CPU

700 ms

— 700 ms – 700 ms

Unused JS

915 kB

— 915 kB – 915 kB

Unused CSS

44.4 kB

— 44.4 kB – 44.4 kB

By resource type

Type	Share	Size	Requests
script	79.7%	2.82 MB	95
image	9.8%	347 kB	92
stylesheet	5%	178 kB	21
font	4.2%	148 kB	5
document	1%	34.8 kB	1
other	0.3%	10.4 kB	45
Total		3.54 MB	260

Third parties 21 entities

Entity	Transfer	Size	Main thread Simulated
Google Tag Manager	script	879 kB	441 ms
Facebook	script	169 kB	96 ms
transcend-cdn.com	script	160 kB	93 ms
tailorhq.ai		112 kB	19 ms
ctfassets.net		55.8 kB	0 ms
All 21		1.49 MB	700 ms

Entity

Transfer

Size

Main thread Simulated

Google Tag Manager

script

879 kB

441 ms

Facebook

script

169 kB

96 ms

transcend-cdn.com

script

160 kB

93 ms

tailorhq.ai

112 kB

19 ms

ctfassets.net

55.8 kB

0 ms

All 21

1.49 MB

700 ms

Without JavaScript

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

3.9% of pixels differ — they are nearly identical. 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	14.61 s	— 14.61 s – 14.61 s
Long Tasks	20	— 20 – 20
DOM Elements	743	— 743 – 743
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	5	— 5 – 5
A11y Failures	3	— 3 – 3
A11y Failing Nodes	8	— 8 – 8

Metric

Value

Change / range

Trend

Main Thread Work

14.61 s

— 14.61 s – 14.61 s

Long Tasks

— 20 – 20

DOM Elements

743

— 743 – 743

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

— 5 – 5

A11y Failures

— 3 – 3

A11y Failing Nodes

— 8 – 8

Main thread work

Task	Share	Duration Simulated
script evaluation	39%	5.63 s
other	27%	3.99 s
style layout	13%	1.94 s
paint composite render	13%	1.89 s
script parse compile	6%	879 ms
parse HTML	1%	156 ms
garbage collection	1%	126 ms
Total		14.61 s

Task

Time

Duration Simulated

script evaluation

39%

5.63 s

other

27%

3.99 s

style layout

13%

1.94 s

paint composite render

13%

1.89 s

script parse compile

879 ms

parse HTML

156 ms

garbage collection

126 ms

Total

14.61 s

Axe violations axe-core 4.13.0, full rule set

5 violating nodes across 2 rules, 931 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

serious list — <ul> and <ol> must only directly contain <li>, <script> or <template> elements 4 nodes
serious color-contrast — Elements must meet minimum color contrast ratio thresholds 1 node

Accessibility failures 3 of 27 audits

list — Lists do not contain only `<li>` elements and script supporting elements (`<script>` and `<template>`). 4 nodes
label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 3 nodes
color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 1 node

Best Practices failures 4 of 18 audits

third-party-cookies — Uses third-party cookies 19 items
errors-in-console — Browser errors were logged to the console 16 items
inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 2 items
valid-source-maps — Missing source maps for large first-party JavaScript 62 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 16 console errors

Measurement log

Field history 25 weeks

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

Week ending	LCP	INP	FCP	TTFB
2026-09-19	2.47 s	254 ms	2.42 s	1.37 s
2026-09-12	2.42 s	249 ms	2.36 s	1.33 s
2026-09-05	2.35 s	242 ms	2.29 s	1.29 s
2026-08-29	2.42 s	243 ms	2.33 s	1.34 s
2026-08-22	2.49 s	241 ms	2.40 s	1.48 s
2026-08-15	2.59 s	244 ms	2.50 s	1.59 s
2026-08-08	2.66 s	246 ms	2.58 s	1.66 s
2026-08-01	2.59 s	245 ms	2.54 s	1.64 s
2026-07-25	2.54 s	247 ms	2.48 s	1.57 s
2026-07-18	2.54 s	248 ms	2.41 s	1.48 s
2026-07-11	2.55 s	251 ms	2.38 s	1.43 s
2026-07-04	2.66 s	260 ms	2.46 s	1.47 s

Week ending

LCP

INP

CLS

FCP

TTFB

2026-09-19

2.47 s

254 ms

2.42 s

1.37 s

2026-09-12

2.42 s

249 ms

2.36 s

1.33 s

2026-09-05

2.35 s

242 ms

2.29 s

1.29 s

2026-08-29

2.42 s

243 ms

2.33 s

1.34 s

2026-08-22

2.49 s

241 ms

2.40 s

1.48 s

2026-08-15

2.59 s

244 ms

2.50 s

1.59 s

2026-08-08

2.66 s

246 ms

2.58 s

1.66 s

2026-08-01

2.59 s

245 ms

2.54 s

1.64 s

2026-07-25

2.54 s

247 ms

2.48 s

1.57 s

2026-07-18

2.54 s

248 ms

2.41 s

1.48 s

2026-07-11

2.55 s

251 ms

2.38 s

1.43 s

2026-07-04

2.66 s

260 ms

2.46 s

1.47 s

Runs

Every stored run for this URL, newest first.

When	Scores	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took	Archive
Sep 22, 2026, 3:29 AM UTC		33	12.19 s	0.001	2.77 s	3.54 MB	3/3	±7	2,480 0%	186.4s	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 21 entities

Without JavaScript

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 3 of 27 audits

Best Practices failures 4 of 18 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