opticmsxperience .com

4.27

Results collected 2023-09-07 from https://opticmsxperience.com/

Lighthouse Performance

4.25

The website is fast.
Total Blocking Time 5.00
Largest Contentful Paint: 3.9 s 2.65
Cumulative Layout Shift 5.00
First Contentful Paint: 2.5 s 3.45
Speed Index: 2.5 s 4.90
Page prevented back/forward cache restoration 1.00
Reduce unused CSS: Potential savings of 86 KiB 2.05
Eliminate render-blocking resources: Potential savings of 1,070 ms 2.30
Defer offscreen images: Potential savings of 47 KiB 3.85
Minify JavaScript: Potential savings of 6 KiB 4.10
First Meaningful Paint: 2.5 s 4.35
Time to Interactive: 3.9 s 4.45
Minimizes main-thread work: 1.6 s 4.80
Uses efficient cache policy on static assets: 12 resources found 4.85
All text remains visible during webfont loads 5.00
Avoid multiple page redirects 5.00
Avoid serving legacy JavaScript to modern browsers 5.00
Avoids document.write() 5.00
Avoids an excessive DOM size 5.00
Avoids enormous network payloads 5.00
Efficiently encode images 5.00
Enable text compression 5.00
Has a <meta name="viewport"> tag with width or initial-scale 5.00
Image elements have explicit width and height 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
Max Potential First Input Delay 5.00
Minify CSS 5.00
Minimize third-party usage 5.00
Preconnect to required origins 5.00
Preload Largest Contentful Paint image 5.00
Properly size images 5.00
Reduce unused JavaScript 5.00
Remove duplicate modules in JavaScript bundles 5.00
Serve images in next-gen formats 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

4.30

Pretty good at SEO, but still has some potential improvements.
Links are not crawlable 1.00
Links do not have descriptive text 1.00
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 with width or initial-scale 5.00
Image elements have [alt] attributes 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
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
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

3.85

The tested page has 11 errors in its HTML code.
Number of grouped error type: 6 3.80
Number of errors: 11 3.90
Attribute X not allowed on element X at this point. (errors of this type: 6 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)
Element X not allowed as child of element X in this context. (Suppressing further errors from this subtree.) (errors of this type: 1 pcs)
Element X is missing required attribute X. (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

4.65

The website can be more accessible, but is rather good!
Links rely on color to be distinguishable. 1.00
ARIA IDs are unique 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
Background and foreground colors have a sufficient contrast ratio 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

4.79

The website is fast. 4.79
Speedindex: 713 4.79
Loading time: 0.768 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

4.10

The website can be more accessible, but is rather good!
Number of error type: 4 4.20
Number of errors: 10 4.00

Problems:

Heading tag found with no content. Text that is not intended as a heading should not be marked up with heading tags.
Fieldset does not contain a legend element. All fieldsets should contain a legend element that describes a description of the field group.
Anchor element found with no link content and no name and/or ID attribute.
A fieldset element does not have a name available to an accessibility API. Valid names are: legend element, aria-label undefined, aria-labelledby undefined.

Integrity & Security

3.31

Ok integrity but should get better.
Result generated: 2023-09-06 17:01:35 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

3.67

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
No HTTPv3 support 1.00
No QUIC support 1.00

Carbon Calculator

5.00

Webpage generates very little carbon dioxide!
Carbon dioxide per pageview: 0.2 gram(s)
More green than 97 % of the websites tested by webperf.se (Reference updated: 2022-12-16).
More green than 96 % of the websites tested by webperf.se (Reference updated: 2021-12-12).
Network transfer size: 328 kb 5.00

Software

4.00

CMS used: wordpress
WebServer used: tomcat
Technology used: php
License(s) used: mit
Metadata used: open-graph, viewport, dns-prefetch, canonical, icon, apple-touch-icon
JS Libraries used: audio
Languages found: en, en_us
Image formats used: jpeg, png, webp, gif, ico
Update(s) available 4.00