blog.felipestanzani.com

https://blog.felipestanzani.com/

Ranks Overall #1,430 Built Awesome #967

Data from Oct 3, 2026, 1:45 AM UTC 5d old Measured once a week · 7 runs since Aug 20, 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 Eleventy

Hosted by Self-hosted

Lighthouse Scores LAB Simulated

Performance

no change

Accessibility

no change

100

Best Practices

no change

100

SEO

no change

Metrics LAB

No field data: the Chrome UX Report is not being collected for this project, so every figure below is from the Lighthouse run.

Metric	Lab Simulated
LCP CWV (estimate) Largest Contentful Paint	4.38 s poor	↓ -1 ms 4.26 s – 4.62 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—
CLS CWV (estimate) Cumulative Layout Shift	0 good	→ no change 0 – 0.005
TBT Total Blocking Time	77 ms good	↑ +6 ms (+8.5%) 70 ms – 111 ms
FCP First Contentful Paint	3.69 s poor	↓ -151 ms (-3.9%) 3.69 s – 3.89 s
Speed Index	4.95 s needs work	↓ -7 ms (-0.1%) 3.71 s – 5.00 s
TTFB Time to First Byte	720 ms good	↓ -20 ms (-2.7%) 717 ms – 778 ms

Metric

Lab Simulated

Value

Change / range

Trend

LCP CWV (estimate) Largest Contentful Paint

4.38 s poor

↓ -1 ms 4.26 s – 4.62 s

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

n/a

—

CLS CWV (estimate) Cumulative Layout Shift

0 good

→ no change 0 – 0.005

TBT Total Blocking Time

77 ms good

↑ +6 ms (+8.5%) 70 ms – 111 ms

FCP First Contentful Paint

3.69 s poor

↓ -151 ms (-3.9%) 3.69 s – 3.89 s

Speed Index

4.95 s needs work

↓ -7 ms (-0.1%) 3.71 s – 5.00 s

TTFB Time to First Byte

720 ms good

↓ -20 ms (-2.7%) 717 ms – 778 ms

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.

resource load delay 1.21 s

element render delay 904 ms

time to first byte 142 ms

resource load duration 123 ms

Page weight

Metric	Value	Change / range
Page Weight	612 kB	↑ +1.8 kB (+0.3%) 603 kB – 612 kB
Requests	10	→ no change 10 – 10
Third-party Weight	224 kB	↑ +1.8 kB (+0.8%) 214 kB – 224 kB
Third-party CPU	56 ms	↑ +2 ms (+2.9%) 55 ms – 58 ms
Unused JS	76.4 kB	↑ +721 B (+1%) 72.7 kB – 76.4 kB
Unused CSS	0 B	→ no change 0 B – 0 B

Metric

Value

Change / range

Trend

Page Weight

612 kB

↑ +1.8 kB (+0.3%) 603 kB – 612 kB

Requests

→ no change 10 – 10

Third-party Weight

224 kB

↑ +1.8 kB (+0.8%) 214 kB – 224 kB

Third-party CPU

56 ms

↑ +2 ms (+2.9%) 55 ms – 58 ms

Unused JS

76.4 kB

↑ +721 B (+1%) 72.7 kB – 76.4 kB

Unused CSS

0 B

→ no change 0 B – 0 B

By resource type

Type	Share	Size	Requests
image	31.3%	192 kB	2
script	29.5%	181 kB	1
other	28.1%	172 kB	1
font	6.6%	40.6 kB	2
document	2.7%	16.3 kB	1
stylesheet	1.7%	10.4 kB	3
Total		612 kB	10

Third parties 2 entities

Entity	Transfer	Size	Main thread Simulated
Google Tag Manager	script	181 kB	56 ms
Google Fonts	font	42.9 kB	0 ms
Total		224 kB	56 ms

Entity

Transfer

Size

Main thread Simulated

Google Tag Manager

script

181 kB

56 ms

Google Fonts

font

42.9 kB

0 ms

Total

224 kB

56 ms

Page health

Metric	Value	Change / range
Main Thread Work	672 ms	↓ -6 ms (-0.9%) 642 ms – 678 ms
Long Tasks	4	→ no change 3 – 4
DOM Elements	461	→ no change 461 – 461
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	19	→ no change 17 – 19
A11y Failures	2	→ no change 2 – 2
A11y Failing Nodes	13	→ no change 13 – 13

Metric

Value

Change / range

Trend

Main Thread Work

672 ms

↓ -6 ms (-0.9%) 642 ms – 678 ms

Long Tasks

→ no change 3 – 4

DOM Elements

461

→ no change 461 – 461

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

→ no change 17 – 19

A11y Failures

→ no change 2 – 2

A11y Failing Nodes

→ no change 13 – 13

Main thread work

Task	Share	Duration Simulated
script evaluation	30%	200 ms
other	30%	199 ms
style layout	28%	188 ms
script parse compile	7%	47 ms
paint composite render	3%	19 ms
parse HTML	3%	19 ms
Total		672 ms

Task

Time

Duration Simulated

script evaluation

30%

200 ms

other

30%

199 ms

style layout

28%

188 ms

script parse compile

47 ms

paint composite render

19 ms

parse HTML

19 ms

Total

672 ms

Axe violations axe-core 4.13.0, full rule set

19 violating nodes across 4 rules, 850 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 12 nodes

Offending elements (5 of 12)

.justify-self-end

<p class="text-sm justify-self-end text-[#2e8b57]">Felipe Stanzani's blog</p>

.lg\:text-md

<p class="text-phosphor-green-dim text-sm lg:text-md text-justify">

.flex-col.gap-2 > .w-fit.gap-2[target="_blank"]:nth-child(1)

<a href="https://github.com/felipestanzani" target="_blank" class="flex items-center gap-2 w-fit text-sm text-phosphor-green-dim hover:underline">

.flex-col.gap-2 > .w-fit.gap-2[target="_blank"]:nth-child(2)

<a href="https://www.linkedin.com/in/felipestanzani/" target="_blank" class="flex items-center gap-2 w-fit text-sm text-phosphor-green-dim hover:underline">

.w-fit[href$="felipestanzani"][target="_blank"]:nth-child(3)

<a href="https://dev.to/felipestanzani" target="_blank" class="flex items-center gap-2 w-fit text-sm text-phosphor-green-dim hover:underline">

minor image-redundant-alt — Alternative text of images should not be repeated as text 4 nodes

Offending elements

img[src$="NuhRuuSc-4-24.svg"]

<img loading="lazy" decoding="async" src="img/NuhRuuSc-4-24.svg" alt="GitHub" class="size-4 [filter:invert(0.6)_sepia(1)_saturate(3)_hue-rotate(65deg)_brightness(1.2)_contrast(1)]" width="24" height=…

img[src$="6rqsWY_PH--24.svg"]

<img loading="lazy" decoding="async" src="img/6rqsWY_PH--24.svg" alt="LinkedIn" class="size-4 [filter:invert(0.6)_sepia(1)_saturate(3)_hue-rotate(65deg)_brightness(1.2)_contrast(1)]" width="24" heigh…

img[src$="Hga9rIuzO9-24.svg"]

<img loading="lazy" decoding="async" src="img/Hga9rIuzO9-24.svg" alt="DEV.to" class="size-4 [filter:invert(0.6)_sepia(1)_saturate(3)_hue-rotate(65deg)_brightness(1.2)_contrast(1)]" width="24" height=…

img[src$="SqXsbWRcGp-24.svg"]

<img loading="lazy" decoding="async" src="img/SqXsbWRcGp-24.svg" alt="X" class="size-4 [filter:invert(0.6)_sepia(1)_saturate(3)_hue-rotate(65deg)_brightness(1.2)_contrast(1)]" width="24" height="24">

serious scrollable-region-focusable — Scrollable region must have keyboard access 2 nodes
Offending elements
1. li:nth-child(4) > article > pre
```
<pre class="language-java">
```
2. li:nth-child(5) > article > pre
```
<pre class="language-java">
```
serious link-in-text-block — Links must be distinguishable without relying on color 1 node
Offending element
1. p > a[href$="blog/"]
```
<a href="blog/">the archive</a>
```

Accessibility failures 2 of 22 audits

color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 12 nodes
link-in-text-block — Links rely on color to be distinguishable. 1 node

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first.

When	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took	Archive
Oct 3, 2026, 1:45 AM UTC	74	4.38 s	0	77 ms	612 kB	3/3	±1	2,382 -4%	31.4s	Wayback
Sep 25, 2026, 11:19 AM UTC	74	4.38 s	0	71 ms	611 kB	3/3	±5	2,308 -7%	31.5s	Wayback
Sep 18, 2026, 8:51 AM UTC	75	4.26 s	0	74 ms	609 kB	3/3	±5	2,500 +1%	32.5s	Wayback
Sep 11, 2026, 8:40 AM UTC	73	4.43 s	0	70 ms	608 kB	3/3	±9	2,590 +4%	34.4s	Wayback
Sep 4, 2026, 5:37 AM UTC	73	4.43 s	0	85 ms	607 kB	3/3	±4	2,490 0%	32.8s	Wayback
Aug 28, 2026, 1:20 AM UTC	74	4.62 s	0.005	111 ms	604 kB	3/3	±1	2,366 -5%	29.7s	Wayback
Aug 20, 2026, 7:09 PM UTC	74	4.42 s	0	74 ms	603 kB	3/3	±6	2,481 0%	32.9s	Wayback

When

Scores

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

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Stack

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB

LCP Subparts LAB 🐇 Unthrottled

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 22 audits

Hygiene

Measurement log

Embed this score

Lighthouse Scores LAB Simulated

LCP Subparts LAB Unthrottled