optimizelyvisuals .dev
3.82
Results collected 2024-03-15 from https://optimizelyvisuals.dev/
Lighthouse Performance
2.85
- The website is quite slow.
- Total Blocking Time: 180 ms 4.60
- Largest Contentful Paint: 9.1 s 1.00
- Cumulative Layout Shift 5.00
- First Contentful Paint: 4.4 s 1.00
- Speed Index: 7.3 s 1.40
- Eliminate render-blocking resources 1.00
- Largest Contentful Paint element 1.00
- Largest Contentful Paint image was lazily loaded 1.00
- Minimize main-thread work 1.00
- Preconnect to required origins 1.00
- Properly size images 1.00
- Reduce JavaScript execution time 1.00
- Reduce initial server response time 1.00
- Reduce unused CSS 1.00
- Reduce unused JavaScript 1.00
- First Meaningful Paint: 4.4 s 2.00
- Time to Interactive: 8.3 s 2.00
- Avoid serving legacy JavaScript to modern browsers: Potential savings of 9 KiB 2.50
- Ensure text remains visible during webfont load: 2.50
- Serve static assets with an efficient cache policy: 28 resources found 2.50
- Max Potential First Input Delay: 110 ms 4.65
- Avoid chaining critical requests 5.00
- Avoid large layout shifts 5.00
- Avoid large layout shifts 5.00
- Avoid long main-thread tasks 5.00
- Avoid multiple page redirects 5.00
- Avoid non-composited animations 5.00
- Avoids
document.write()
5.00 - Avoids an excessive DOM size 5.00
- Avoids enormous network payloads 5.00
- Defer offscreen images 5.00
- Diagnostics 5.00
- Efficiently encode images 5.00
- Enable text compression 5.00
- Final Screenshot 5.00
- Has a
<meta name="viewport">
tag withwidth
orinitial-scale
5.00 - Image elements have explicit
width
andheight
5.00 - Metrics 5.00
- Minify CSS 5.00
- Minify JavaScript 5.00
- Minimize third-party usage 5.00
- Network Requests 5.00
- Network Round Trip Times 5.00
- Preload Largest Contentful Paint image 5.00
- Remove duplicate modules in JavaScript bundles 5.00
- Resources Summary 5.00
- Screenshot Thumbnails 5.00
- Script Treemap Data 5.00
- Serve images in next-gen formats 5.00
- Server Backend Latencies 5.00
- Tasks 5.00
- Use HTTP/2 5.00
- Use video formats for animated content 5.00
- User Timing marks and measures 5.00
- Uses passive listeners to improve scrolling performance 5.00
- Enable text compression 5.00
Lighthouse SEO
4.65
- Pretty good at SEO, but still has some potential improvements.
- Document does not have a meta description 1.00
- Document avoids plugins 5.00
- Document has a
<title>
element 5.00 - Document has a valid
hreflang
5.00 - Document has a valid
rel=canonical
5.00 - Document uses legible font sizes 5.00
- Has a
<meta name="viewport">
tag withwidth
orinitial-scale
5.00 - Image elements have
[alt]
attributes 5.00 - Links are crawlable 5.00
- Links have descriptive text 5.00
- Page has successful HTTP status code 5.00
- Page isn’t blocked from indexing 5.00
- Tap targets are sized appropriately 5.00
- robots.txt is valid 5.00
Lighthouse Best Practices
3.90
- About average on following good practice
- Uses third-party cookies 1.00
- Avoids deprecated APIs 5.00
- Issues were logged in the
Issues
panel in Chrome Devtools 1.00 - Uses HTTPS 5.00
- Allows users to paste into input fields 5.00
- Avoids
unload
event listeners 5.00 - Avoids requesting the geolocation permission on page load 5.00
- Avoids requesting the notification permission on page load 5.00
- Displays images with correct aspect ratio 5.00
- No browser errors logged to the console 5.00
- Page has the HTML doctype 5.00
- Properly defines charset 5.00
- Serves images with appropriate resolution 5.00
- Detected JavaScript libraries 5.00
- Ensure CSP is effective against XSS attacks 5.00
- Page has valid source maps 5.00
- Uses HTTPS 5.00
- Issues were logged in the
Issues
panel in Chrome Devtools 1.00 - Allows users to paste into input fields 5.00
- Avoids deprecated APIs 5.00
- Page has the HTML doctype 5.00
W3C HTML
3.30
- The tested page has 26 errors in its HTML code.
- Number of grouped error type: 4 4.20
- Number of errors: 26 2.40
- Duplicate attribute X. (errors of this type: 18 pcs)
- The element X must not appear as a descendant of the X element. (errors of this type: 4 pcs)
- When the X attribute has any image candidate string with a width descriptor, the X attribute must also be specified. (errors of this type: 3 pcs)
- CSS: X: Parse Error. (errors of this type: 1 pcs)
Standard Files
4.00
- robots.txt seems ok. 5.00
- Sitemap seems to work. 5.00
- RSS subscription found. 5.00
- security.txt has wrong content. 1.00
Lighthouse A11y
4.80
- The website can be more accessible, but is rather good!
- Background and foreground colors do not have a sufficient contrast ratio. 1.00
- Buttons have an accessible name 5.00
- Image elements have
[alt]
attributes 5.00 [aria-*]
attributes are valid and not misspelled 5.00[aria-*]
attributes have valid values 5.00[aria-*]
attributes match their roles 5.00[aria-hidden="true"]
is not present on the document<body>
5.00[role]
s have all required[aria-*]
attributes 5.00[user-scalable="no"]
is not used in the<meta name="viewport">
element and the[maximum-scale]
attribute is not less than 5. 5.00- Document has a
<title>
element 5.00 - Links are distinguishable without relying on color. 5.00
- Links have a discernible name 5.00
- List items (
<li>
) are contained within<ul>
,<ol>
or<menu>
parent elements 5.00 - Lists contain only
<li>
elements and script supporting elements (<script>
and<template>
). 5.00 - No element has a
[tabindex]
value greater than 0 5.00 <frame>
or<iframe>
elements have a title 5.00<html>
element has a[lang]
attribute 5.00<html>
element has a valid value for its[lang]
attribute 5.00[aria-hidden="true"]
elements do not contain focusable descendents 5.00[id]
attributes on active, focusable elements are unique 5.00[role]
values are valid 5.00button
,link
, andmenuitem
elements have accessible names 5.00- Heading elements appear in a sequentially-descending order 5.00
- Image elements do not have
[alt]
attributes that are redundant text. 5.00 - Values assigned to
role=""
are valid ARIA roles. 5.00 - Elements with visible text labels have matching accessible names. 5.00
- Touch targets have sufficient size and spacing. 5.00
Sitespeed.io
3.09
- About average speed. 3.09
- Speedindex: 2410 3.09
- Loading time: 2.20s
- Number of requests: 78
Yellow Lab Tools
4.45
- The website has good frontend code. 4.45
- Page weight 4.95
- Requests 4.75
- DOM complexity 5.00
- JS complexity 4.10
- Bad JS 4.95
- jQuery 5.00
- CSS complexity 1.00
- Bad CSS 2.65
- Web fonts 4.40
- Server config 4.45
- Number of iframes 5.00
- Total JS execution time 4.35
- DOM access 4.85
- Scroll events bound 1.45
- document.write calls 5.00
- Synchronous Ajax requests 5.00
- Rules count 1.00
- Total weight 5.00
- Image optimization 5.00
- Oversized images 5.00
- Gzip/Brotli compression 4.75
- File minification 5.00
- Requests number 5.00
- Different domains 4.15
- 404 not found 5.00
- Connections closed 5.00
- Identical content 5.00
- Below the fold images 4.55
- Webfonts number 3.75
- Overweighted webfonts 5.00
- WOFF 2 5.00
- HTTP protocols 5.00
- TLS protocols 5.00
- Caching disabled 5.00
- Caching not specified 5.00
- Caching too short 1.00
- jQuery version 5.00
- TLS protocols 5.00
- IDs duplicated 5.00
- CSS syntax error 1.00
- Gzip/Brotli compression 4.75
- 404 not found 5.00
- TLS protocols 5.00
Pa11y
3.50
- The accessibility is apparently really bad! Probably both for disabled people and everyone of us when we need some accessibility!
- Number of error type: 6 3.80
- Number of errors: 18 3.20
Problems:
- A element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.31:1. Recommendation: change background to #246ef6.
- Iframe element requires a non-empty title attribute that identifies the frame.
- A element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 4.31:1. Recommendation: change text colour to #246ef6.
- A element has insufficient contrast at this conformance level. Expected a contrast ratio of at least 4.5:1, but text in this element has a contrast ratio of 2.07:1. Recommendation: change text colour to #000a15.
- A textarea element does not have a name available to an accessibility API. Valid names are: label element, title undefined, aria-label undefined, aria-labelledby undefined.
- A form field should be labelled in some way. Use the label element (either with a "for" attribute or wrapped around the form field), or "title", "aria-label" or "aria-labelledby" attributes as appropriate.
Integrity & Security
2.19
- Rather poor on user privacy.
- Result generated: 2024-03-15 15:57:54 Etc/UTC (Cached for 24 hours)
- HTTPS by default: is good! 5.00
- HTTP Strict Transport Security HSTS: is pretty bad. 1.00
- Content Security Policy: is pretty bad. 1.00
- Reporting CSP Certificate Transparency Network Error Logging: is not that good. 2.50
- Referrer Policy: is pretty bad. 1.00
- Subresource Integrity SRI: is pretty bad. 1.00
- HTTP headers: is good! 5.00
- Cookies: is ok, with 9 error(s) and 0 warning(s). 1.00
HTTP & Tech
5.00
- HTTP to HTTPS redirect 5.00
- TLSv1.3 support 5.00
- TLSv1.2 support 5.00
- IPv6 support 5.00
- IPv4 support 5.00
- HTTPv3 support 5.00
- QUIC support 5.00
Carbon Calculator
4.15
- Webpage generates little carbon dioxide!
- Carbon dioxide per pageview: 0.54 gram(s)
- More green than 83 % of the websites tested by webperf.se (Reference updated: 2022-12-16).
- More green than 83 % of the websites tested by webperf.se (Reference updated: 2021-12-12).
- Network transfer size: 883 kb 4.15