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https://w3techs.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
90
GRADE
A
FIX
1
REVIEW
3
PASS
11
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
97
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
83
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.54 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

2.47 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

0 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.007

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.84 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

2.47 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
17
11 PASS 3 REVIEW 1 FIX
D
Third-Party Impact
Action
78% third-party, 0 ms blocking
FIX
78% third-party, 0 ms blocking
Warning::
Third-party code accounts for 78% of page weight (65.8 KiB of 84.8 KiB)
Info::
Third-party blocking time is low (0 ms)
22%
78%
First-party Third-party
C
Image Optimization
Action
6 images, 0 KB saveable
REVIEW
6 images, 0 KB saveable
Warning::
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://media.ethicalads.io/images/2023/07/mongodb... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
6 images 35 KB
0 oversized -0 KB
5 legacy format
2 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

B
JS Execution Cost
623ms total JS execution
REVIEW
623ms total JS execution
Warning::
https://w3techs.com/: 437ms CPU time
Info::
Unattributable: 187ms CPU time
Info::
Third-party scripts: 187ms (30% of total)

Main Thread Breakdown

Style & Layout 35% Other 30% Script Evaluation 15% Rendering 15% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://w3techs.com/437ms16ms3ms1st
Unattributable187ms13ms0ms3rd
B
HTTP Caching
max-age=0
REVIEW
max-age=0
Info::
Cache-Control header is set
Got: max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=0

DirectiveValueMeaning
max-age0Cache for 0 seconds
A+
Page Weight Budget
85 KB transferred, 14 requests
PASS
85 KB transferred, 14 requests
Info::
Page weighs 220 KB (85 KB transferred)
Info::
14 HTTP requests
Info::
Estimated 0.02 g CO2 per page load
85 KB / 2.4 MB budget
85 KB transferred
14 requests
0.02 g CO2 per page load
Images 34.7 KiB 41%
JavaScript 34.6 KiB 41%
HTML 8.7 KiB 10%
CSS 4.9 KiB 6%
Other 1.5 KiB 2%
Other 298 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+
JS Bundles
5 scripts, 0 KB unused
PASS
5 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://media.ethicalads.io/media/client/ethicalads.min.js11 KB—✓3rd
https://m.q-success.com/mtj22 KB—✓3rd
https://b.w3techs.com/ajs/2/2/204207914/https%3A%2F%2Fw3techs.com%2F0 KB—✓3rd
https://b.w3techs.com/ajs/2/5/204207914/https%3A%2F%2Fw3techs.com%2F0 KB—✓3rd
https://server.ethicalads.io/api/v1/decision/?publisher=w3techs-com&ad_types=image-v1&div_ids=ad_1776889649763_223049&callback=ad_1776889649763_223049&keywords=web%7Cdevelopment%7CCMS%7Cweb+hosting%7Cjavascript%7Ccss&campaign_types=paid%7Ccommunity%7Chouse&format=jsonp&client_version=2.3.0&placement_index=0&url=https%3A%2F%2Fw3techs.com%2F1 KB—✓3rd
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A
Page Weight Inventory
14 resources · 85 KB · 0 KB savings available
PASS
14 resources · 85 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 85 KB
Warning::
10 third-party resources (78% of weight)
14 resources · 84.8 KiB · 10 third-party Within 1MB page-weight target
Image 43% · 36.2 KiB
JavaScript 41% · 34.6 KiB
Document 10% · 8.7 KiB
CSS 6% · 4.9 KiB
Other 0% · 298 B
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Hetzner Online GmbH

Network Waterfall
14 requests over 2072ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.5 s LCP 2.5 shttps://w3techs.com// https://w3techs.com/ — 200 — 8.7 KiB — 499 ms — http/1.1https://w3techs.com/s46.css/s46.css https://w3techs.com/s46.css — 200 — 4.9 KiB — 165 ms — http/1.1https://media.ethicalads.io/media/client/ethicalads.min.jsmedia.ethicalads.io/media/client/et... https://media.ethicalads.io/media/client/ethicalads.min.js — 200 — 10.8 KiB — 39 ms — h2https://w3techs.com/logo1.gif/logo1.gif https://w3techs.com/logo1.gif — 200 — 3.8 KiB — 164 ms — http/1.1https://m.q-success.com/mtjm.q-success.com/mtj https://m.q-success.com/mtj — 200 — 22.1 KiB — 968 ms — http/1.1https://b.w3techs.com/ajs/2/2/204207914/https%3A%2F%2Fw3techs.com%2Fb.w3techs.com/ajs/2/2/204207914/htt... https://b.w3techs.com/ajs/2/2/204207914/https%3A%2F%2Fw3techs.com%2F — 200 — 342 B — 661 ms — http/1.1https://b.w3techs.com/ajs/2/5/204207914/https%3A%2F%2Fw3techs.com%2Fb.w3techs.com/ajs/2/5/204207914/htt... https://b.w3techs.com/ajs/2/5/204207914/https%3A%2F%2Fw3techs.com%2F — 200 — 341 B — 166 ms — http/1.1https://server.ethicalads.io/api/v1/decision/?publisher=w3techs-com&ad_types=image-v1&div_ids=ad_1776889649763_223049&callback=ad_1776889649763_223049&keywords=web%7Cdevelopment%7CCMS%7Cweb+hosting%7Cjavascript%7Ccss&campaign_types=paid%7Ccommunity%7Chouse&format=jsonp&client_version=2.3.0&placement_index=0&url=https%3A%2F%2Fw3techs.com%2Fserver.ethicalads.io/api/v1/decisio... https://server.ethicalads.io/api/v1/decision/?publisher=w3techs-com&ad_types=image-v1&div_ids=ad_1776889649763_223049&callback=ad_1776889649763_223049&keywords=web%7Cdevelopment%7CCMS%7Cweb+hosting%7Cjavascript%7Ccss&campaign_types=paid%7Ccommunity%7Chouse&format=jsonp&client_version=2.3.0&placement_index=0&url=https%3A%2F%2Fw3techs.com%2F — 200 — 1.1 KiB — 185 ms — h2https://media.ethicalads.io/abp/px.gif?ch=1&rn=6.783731371585589media.ethicalads.io/abp/px.gif?ch=1... https://media.ethicalads.io/abp/px.gif?ch=1&rn=6.783731371585589 — 200 — 345 B — 20 ms — h2https://media.ethicalads.io/abp/px.gif?ch=2&rn=6.783731371585589media.ethicalads.io/abp/px.gif?ch=2... https://media.ethicalads.io/abp/px.gif?ch=2&rn=6.783731371585589 — 200 — 558 B — 15 ms — h2https://m.q-success.com/mtp?action_name=W3Techs%20-%20extensive%20and%20reliable%20web%20technology%20surveys&idsite=2&rec=1&r=972391&h=20&m=27&s=29&url=https%3A%2F%2Fw3techs.com%2F&_id=&_idn=1&send_image=0&_refts=0&pv_id=wJEvJP&pf_net=335&pf_srv=163&pf_tfr=3&pf_dm1=1078&uadata=%7B%22formFactors%22%3A%5B%22Desktop%22%5D%2C%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Not-A.Brand%22%2C%22version%22%3A%2224.0.0.0%22%7D%2C%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22146.0.7680.164%22%7D%5D%2C%22mobile%22%3Atrue%2C%22model%22%3A%22moto%20g%20power%20(2022)%22%2C%22platform%22%3A%22Android%22%2C%22platformVersion%22%3A%2211.0%22%7D&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=412x823m.q-success.com/mtp?action_name=W3T... https://m.q-success.com/mtp?action_name=W3Techs%20-%20extensive%20and%20reliable%20web%20technology%20surveys&idsite=2&rec=1&r=972391&h=20&m=27&s=29&url=https%3A%2F%2Fw3techs.com%2F&_id=&_idn=1&send_image=0&_refts=0&pv_id=wJEvJP&pf_net=335&pf_srv=163&pf_tfr=3&pf_dm1=1078&uadata=%7B%22formFactors%22%3A%5B%22Desktop%22%5D%2C%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Not-A.Brand%22%2C%22version%22%3A%2224.0.0.0%22%7D%2C%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22146.0.7680.164%22%7D%5D%2C%22mobile%22%3Atrue%2C%22model%22%3A%22moto%20g%20power%20(2022)%22%2C%22platform%22%3A%22Android%22%2C%22platformVersion%22%3A%2211.0%22%7D&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=412x823 — 204 — 298 B — 403 ms — http/1.1https://media.ethicalads.io/images/2023/07/mongodb-codedark-240x180.pngmedia.ethicalads.io/images/2023/07/... https://media.ethicalads.io/images/2023/07/mongodb-codedark-240x180.png — 200 — 29.6 KiB — 16 ms — h2https://w3techs.com/favicon.ico/favicon.ico https://w3techs.com/favicon.ico — 200 — 1.5 KiB — 163 ms — http/1.1https://server.ethicalads.io/proxy/view/10122/019db6e0-5aca-7f40-9c88-220f0c199ca5/server.ethicalads.io/proxy/view/101... https://server.ethicalads.io/proxy/view/10122/019db6e0-5aca-7f40-9c88-220f0c199ca5/ — 200 — 431 B — 88 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
30% of JavaScript execution is third-party
First-party Third-party 187ms · 0KB · €3/mo
Unattributable
Other
Optional
Execution 187ms
Transfer 0 KB
Monthly Cost €3/mo

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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