opticmsxperience .com
4.36
Results collected 2024-03-15 from https://opticmsxperience.com/
Lighthouse Performance
4.00
- The website is fast.
- Total Blocking Time 5.00
- Largest Contentful Paint: 4.3 s 2.10
- Cumulative Layout Shift 5.00
- First Contentful Paint: 3.0 s 2.40
- Speed Index: 3.0 s 4.65
- Eliminate render-blocking resources 1.00
- Largest Contentful Paint element 1.00
- Minify JavaScript 1.00
- Properly size images 1.00
- Reduce unused CSS 1.00
- Serve images in next-gen formats 1.00
- Avoid serving legacy JavaScript to modern browsers: Potential savings of 12 KiB 2.50
- Serve static assets with an efficient cache policy: 12 resources found 2.50
- First Meaningful Paint: 3.1 s 3.55
- Time to Interactive: 3.4 s 4.65
- Max Potential First Input Delay: 110 ms 4.75
- All text remains visible during webfont loads 5.00
- 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
- 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 - Initial server response time was short 5.00
- JavaScript execution time 5.00
- Largest Contentful Paint image was not lazily loaded 5.00
- Metrics 5.00
- Minify CSS 5.00
- Minimize third-party usage 5.00
- Minimizes main-thread work 5.00
- Network Requests 5.00
- Network Round Trip Times 5.00
- Preconnect to required origins 5.00
- Preload Largest Contentful Paint image 5.00
- Reduce unused JavaScript 5.00
- Remove duplicate modules in JavaScript bundles 5.00
- Resources Summary 5.00
- Screenshot Thumbnails 5.00
- Script Treemap Data 5.00
- Server Backend Latencies 5.00
- Tasks 5.00
- Use HTTP/2 5.00
- Use video formats for animated content 5.00
- Uses passive listeners to improve scrolling performance 5.00
- Enable text compression 5.00
Lighthouse SEO
5.00
- The website is really good at SEO!
- Document avoids plugins 5.00
- Document has a
<title>
element 5.00 - Document has a meta description 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
5.00
- The website is adhering to good practice according to Google Lighthouse!
- Avoids deprecated APIs 5.00
- Avoids third-party cookies 5.00
- 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
- No issues in the
Issues
panel in Chrome Devtools 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
- No issues in the
Issues
panel in Chrome Devtools 5.00 - Allows users to paste into input fields 5.00
- Avoids deprecated APIs 5.00
- Page has the HTML doctype 5.00
W3C HTML
3.95
- The tested page has 11 errors in its HTML code.
- Number of grouped error type: 5 4.00
- Number of errors: 11 3.90
- Attribute X not allowed on element X at this point. (errors of this type: 6 pcs)
- Element X not allowed as child of element X in this context. (Suppressing further errors from this subtree.) (errors of this type: 2 pcs)
- An X element with a X attribute whose value is X and with a X attribute whose value is X must have an X attribute whose value is X. (errors of this type: 1 pcs)
- The X element must not appear as a descendant of the X element. (errors of this type: 1 pcs)
- The X attribute was specified, but the element is not a property of any item. (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 is missing. 1.00
Lighthouse A11y
4.40
- The website can be more accessible, but is rather good!
- Background and foreground colors do not have a sufficient contrast ratio. 1.00
- Links rely on color to be distinguishable. 1.00
- 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 - Form elements have associated labels 5.00
- Heading elements are not in a sequentially-descending order 1.00
- 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 <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[role]
values are valid 5.00- Values assigned to
role=""
are not valid ARIA roles. 1.00 - Skip links are focusable. 5.00
- Image elements do not have
[alt]
attributes that are redundant text. 5.00
Sitespeed.io
5.00
- The website is really fast! 5.00
- Speedindex: 183 5.00
- Loading time: 0.255 sec
- Number of requests: 42
Yellow Lab Tools
4.60
- The website has good frontend code. 4.60
- Page weight 5.00
- Requests 4.35
- DOM complexity 5.00
- JS complexity 5.00
- Bad JS 5.00
- jQuery 5.00
- CSS complexity 1.00
- Bad CSS 3.15
- Web fonts 4.25
- Server config 5.00
- Number of iframes 5.00
- Total JS execution time 5.00
- DOM access 5.00
- Scroll events bound 5.00
- 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 5.00
- File minification 5.00
- Requests number 5.00
- Different domains 5.00
- 404 not found 5.00
- Connections closed 5.00
- Identical content 5.00
- Below the fold images 1.00
- Webfonts number 3.75
- Overweighted webfonts 4.50
- WOFF 2 5.00
- HTTP protocols 5.00
- TLS protocols 5.00
- Caching disabled 5.00
- Caching not specified 5.00
- Caching too short 5.00
- TLS protocols 5.00
- IDs duplicated 5.00
- CSS syntax error 5.00
- Gzip/Brotli compression 5.00
- 404 not found 5.00
- TLS protocols 5.00
Pa11y
3.80
- 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: 12 3.80
Problems:
- Anchor element found with a valid href attribute, but no link content has been supplied.
- 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 4.2:1. Recommendation: change text colour to #73777d.
- Heading tag found with no content. Text that is not intended as a heading should not be marked up with heading tags.
- Iframe element requires a non-empty title attribute that identifies the frame.
- A fieldset element does not have a name available to an accessibility API. Valid names are: legend element, aria-label undefined, aria-labelledby undefined.
- Fieldset does not contain a legend element. All fieldsets should contain a legend element that describes a description of the field group.
Integrity & Security
3.31
- Ok integrity but should get better.
- Result generated: 2024-03-15 16:00:44 Etc/UTC (Cached for 24 hours)
- HTTPS by default: is good! 5.00
- HTTP Strict Transport Security HSTS: is ok, with 2 error(s) and 0 warning(s). 4.00
- Content Security Policy: is pretty bad. 1.00
- Reporting CSP Certificate Transparency Network Error Logging: is good! 5.00
- Referrer Policy: is pretty bad. 1.00
- Subresource Integrity SRI: is pretty bad. 1.00
- HTTP headers: is ok, with 1 error(s) and 0 warning(s). 4.50
- Cookies: is good! 5.00
HTTP & Tech
4.56
- HTTP to HTTPS redirect 5.00
- TLSv1.3 support 5.00
- TLSv1.2 support 5.00
- No IPv6 support 1.00
- IPv4 support 5.00
- HTTPv3 support 5.00
- QUIC support 5.00
Carbon Calculator
4.65
- Webpage generates very little carbon dioxide!
- Carbon dioxide per pageview: 0.32 gram(s)
- More green than 93 % of the websites tested by webperf.se (Reference updated: 2022-12-16).
- More green than 92 % of the websites tested by webperf.se (Reference updated: 2021-12-12).
- Network transfer size: 521 kb 4.65