fffuel.co

https://www.fffuel.co/

Ranks Overall #1,260 Built Awesome #864

Data from Oct 3, 2026, 11:31 PM UTC 2d old Measured once a week · 8 runs since Aug 20, 2026

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

Moved from https://fffuel.co/.

History from the previous URL is included below, with the move on Sep 5, 2026. A step-change around that point is likely the change of address rather than a regression.

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

Stack

Uses Alpine.js 3.13.10

Hosted by Vercel

Lighthouse Scores LAB Simulated

Performance

↓ -1 (-1.1%)

Accessibility

no change

100

Best Practices

no change

100

SEO

no change

Metrics LAB FIELD

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

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-04 → 2026-10-01), url-level.

Metric	Lab Simulated	Field
LCP CWV Largest Contentful Paint	2.79 s needs work	↓ -40 ms (-1.4%) 2.79 s – 3.64 s	1.38 s good	89.3% 6.6% 4.1%
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—	79 ms good	96.5% 3.3% 0.3%
CLS CWV Cumulative Layout Shift	0.008 good	→ no change 0.008 – 0.008	0 good	95.6% 2.5% 1.9%
TBT Total Blocking Time	0 ms good	→ no change 0 ms – 0 ms	n/a	—
FCP First Contentful Paint	1.89 s needs work	↑ +325 ms (+20.8%) 1.54 s – 2.68 s	1.16 s good	86.7% 8.3% 5%
Speed Index	1.89 s good	↑ +325 ms (+20.8%) 1.54 s – 2.68 s	n/a	—
TTFB Time to First Byte	479 ms good	↓ -13 ms (-2.6%) 479 ms – 662 ms	882 ms needs work	71.2% 20.3% 8.5%

Metric

Lab Simulated

Field

Value

Change / range

Trend

p75

Distribution

LCP CWV Largest Contentful Paint

2.79 s needs work

↓ -40 ms (-1.4%) 2.79 s – 3.64 s

1.38 s good

89.3% 6.6% 4.1%

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

n/a

—

79 ms good

96.5% 3.3% 0.3%

CLS CWV Cumulative Layout Shift

0.008 good

→ no change 0.008 – 0.008

0 good

95.6% 2.5% 1.9%

TBT Total Blocking Time

0 ms good

→ no change 0 ms – 0 ms

n/a

—

FCP First Contentful Paint

1.89 s needs work

↑ +325 ms (+20.8%) 1.54 s – 2.68 s

1.16 s good

86.7% 8.3% 5%

Speed Index

1.89 s good

↑ +325 ms (+20.8%) 1.54 s – 2.68 s

n/a

—

TTFB Time to First Byte

479 ms good

↓ -13 ms (-2.6%) 479 ms – 662 ms

882 ms needs work

71.2% 20.3% 8.5%

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 178 ms

resource load delay 107 ms

resource load duration 80 ms

time to first byte 27 ms

LCP LAB Simulated vs LCP FIELD

Lab 2.79 s

Field p75 1.38 s

The lab LCP is 2.02× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric	Value	Change / range
Page Weight	442 kB	↓ -1 B 442 kB – 444 kB
Requests	76	→ no change 76 – 77
Third-party Weight	12.6 kB	↑ +3 B 12.0 kB – 13.9 kB
Third-party CPU	7 ms	↓ -0 ms (-2.7%) 4 ms – 8 ms
Unused JS	0 B	→ no change 0 B – 0 B
Unused CSS	0 B	→ no change 0 B – 0 B

Metric

Value

Change / range

Trend

Page Weight

442 kB

↓ -1 B 442 kB – 444 kB

Requests

→ no change 76 – 77

Third-party Weight

12.6 kB

↑ +3 B 12.0 kB – 13.9 kB

Third-party CPU

7 ms

↓ -0 ms (-2.7%) 4 ms – 8 ms

Unused JS

0 B

→ no change 0 B – 0 B

Unused CSS

0 B

→ no change 0 B – 0 B

By resource type

Type	Share	Size	Requests
image	75.5%	329 kB	65
font	11.5%	49.9 kB	1
script	7%	30.6 kB	3
stylesheet	3.4%	14.8 kB	2
document	2.1%	8.9 kB	1
other	0.5%	2.4 kB	3
Total		442 kB	76

Third parties 2 entities

Entity	Transfer	Size	Main thread Simulated
Cloudflare	script	10.2 kB	6 ms
Plausible	script	2.4 kB	2 ms
Total		12.6 kB	7 ms

Entity

Transfer

Size

Main thread Simulated

Cloudflare

script

10.2 kB

6 ms

Plausible

script

2.4 kB

2 ms

Total

12.6 kB

7 ms

Page health

Metric	Value	Change / range
Main Thread Work	1.37 s	↓ -282 ms (-17.1%) 1.02 s – 1.65 s
Long Tasks	1	↓ -1 (-50%) 1 – 3
DOM Elements	336	→ no change 336 – 336
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	73	→ no change 73 – 73
A11y Failures	2	→ no change 2 – 2
A11y Failing Nodes	2	→ no change 2 – 2

Metric

Value

Change / range

Trend

Main Thread Work

1.37 s

↓ -282 ms (-17.1%) 1.02 s – 1.65 s

Long Tasks

↓ -1 (-50%) 1 – 3

DOM Elements

336

→ no change 336 – 336

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

→ no change 73 – 73

A11y Failures

→ no change 2 – 2

A11y Failing Nodes

→ no change 2 – 2

Main thread work

Task	Share	Duration Simulated
other	51%	694 ms
style layout	33%	446 ms
paint composite render	9%	128 ms
script evaluation	6%	76 ms
parse HTML	2%	22 ms
script parse compile	0%	6 ms
Total		1.37 s

Task

Time

Duration Simulated

other

51%

694 ms

style layout

33%

446 ms

paint composite render

128 ms

script evaluation

76 ms

parse HTML

22 ms

script parse compile

6 ms

Total

1.37 s

Axe violations axe-core 4.13.0, full rule set

73 violating nodes across 3 rules, 595 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

moderate region — All page content should be contained by landmarks 71 nodes

Offending elements (5 of 71)

a[href$="syntax.fm/"]

<a href="https://syntax.fm/" target="_blank" rel="noreferrer noopener nofollow">Syntax - Web Development Podcast</a>

h2

<h2 class="xl:hidden mb-0" style="grid-column: 1/-1">SVG generators, tools &amp; design resources<br>↓</h2>

.bg-white\/25.hover\:bg-white[href$="cccolor/"]

<a class="bg-white/25 hover:bg-white transition-colors duration-300 !no-underline square grid place-items-center text-xl sm:text-2xl lg:text-4xl" title="HEX, RGB & HSL color picker for HTML and CSS" …

a[title="color palette generator"]

<a class="bg-white/25 hover:bg..." title="color palette genera..." style="background: linear-g..." href="/pppalette/">

a[href$="hhhue/"]

<a class="bg-white/25 hover:bg-white transition-colors duration-300 !no-underline square grid place-items-center text-xl sm:text-2xl lg:text-4xl" title="curated collection of beautiful color palettes…

serious aria-prohibited-attr — Elements must only use permitted ARIA attributes 1 node

Offending element

label

<label for="themeSwitch" class="theme-switch__label !top-10" aria-label="Color theme switcher"><span></span></label>

moderate landmark-one-main — Document should have one main landmark 1 node
Offending element
1. html
```
<html lang="en">
```

Accessibility failures 2 of 17 audits

aria-prohibited-attr — Elements use prohibited ARIA attributes 1 node
landmark-one-main — Document does not have a main landmark. 1 node

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h3

Measurement log

Every stored run for this URL, newest first.

When	Perf	LCP	CLS	Weight	Runs	Spread	Bench	Took	Archive
Oct 3, 2026, 11:31 PM UTC	94	2.79 s	0.008	442 kB	3/3	±1	2,489 0%	27.8s	Wayback
Sep 26, 2026, 9:51 PM UTC	95	2.83 s	0.008	442 kB	3/3	±4	2,484 0%	30.1s	Wayback
Sep 19, 2026, 7:10 PM UTC	94	2.81 s	0.008	442 kB	3/3	±4	2,312 -7%	30.5s	Wayback
Sep 12, 2026, 6:07 PM UTC	95	2.81 s	0.008	442 kB	3/3	±1	2,281 -8%	28.4s	Wayback
Sep 5, 2026, 3:47 PM UTC	95	2.79 s	0.008	442 kB	3/3	±2	2,936 +18%	25.9s	Wayback
Sep 5, 2026, 8:09 AM UTC old URL	87	3.64 s	0.008	443 kB	3/3	±6	3,314 +33%	25.5s	Wayback
Aug 29, 2026, 5:53 AM UTC old URL	86	3.58 s	0.008	442 kB	3/3	±1	2,488 0%	27s	Wayback
Aug 20, 2026, 10:32 PM UTC old URL	91	2.98 s	0.008	444 kB	3/3	±4	3,378 +36%	25.6s	Wayback

When

Scores

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Embed this score

Use this web component to show fffuel.co's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site!

<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://www.fffuel.co/"></speedlify2-score>

Stack

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB FIELD

LCP Subparts LAB 🐇 Unthrottled

LCP LAB 🤖 Simulated vs LCP FIELD

Page weight

By resource type

Third parties 2 entities

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 2 of 17 audits

Hygiene

Measurement log

Embed this score

Lighthouse Scores LAB Simulated

LCP Subparts LAB Unthrottled

LCP LAB Simulated vs LCP FIELD