Slmath.org Site Title
SLMath
Slmath.org Test Results
Slmath.org Mobile Performance: 25/100
Quick overview:
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Properly size images
Potential savings of 2,074 KiB
Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.
Eliminate render-blocking resources
Potential savings of 10,280 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn how to eliminate render-blocking resources.
Use video formats for animated content
Potential savings of 1,854 KiB
Large GIFs are inefficient for delivering animated content. Consider using MPEG4/WebM videos for animations and PNG/WebP for static images instead of GIF to save network bytes. Learn more about efficient video formats
Avoid serving legacy JavaScript to modern browsers
Potential savings of 80 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers. Learn how to use modern JavaScript
Reduce unused CSS
Potential savings of 654 KiB
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Reduce JavaScript execution time
7.2 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.
Serve images in next-gen formats
Potential savings of 1,438 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more about modern image formats.
Enable text compression
Potential savings of 2,265 KiB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn more about text compression.
Minimize main-thread work
12.6 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Avoid multiple page redirects
Potential savings of 1,110 ms
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Largest Contentful Paint element
58,450 ms
This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint element
Preload Largest Contentful Paint image
Potential savings of 9,650 ms
If the LCP element is dynamically added to the page, you should preload the image in order to improve LCP. Learn more about preloading LCP elements.
Reduce the impact of third-party code
Third-party code blocked the main thread for 1,580 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn how to minimize third-party impact.
Reduce unused JavaScript
Potential savings of 2,235 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Avoid an excessive DOM size
1,670 elements
A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows. Learn how to avoid an excessive DOM size.
Avoid enormous network payloads
Total size was 12,694 KiB
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Minify CSS
Potential savings of 3 KiB
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Serve static assets with an efficient cache policy
55 resources found
A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.
Defer offscreen images
Potential savings of 1,220 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn how to defer offscreen images.
Image elements do not have explicit `width` and `height`
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Efficiently encode images
Potential savings of 59 KiB
Optimized images load faster and consume less cellular data. Learn how to efficiently encode images.
Ensure text remains visible during webfont load
Leverage the `font-display` CSS feature to ensure text is user-visible while webfonts are loading. Learn more about `font-display`.
Max Potential First Input Delay
1,270 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
First Meaningful Paint
36.7 s
First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric.
Time to Interactive
52.6 s
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Slmath.org Mobile SEO: 83/100
Quick overview:
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Image elements do not have `[alt]` attributes
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Crawling and Indexing
To appear in search results, crawlers need access to your app.
robots.txt is not valid
8 errors found
If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.
Slmath.org Mobile Best Practices: 79/100
Quick overview:
User Experience
Displays images with incorrect aspect ratio
Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.
General
Missing source maps for large first-party JavaScript
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Trust and Safety
Does not use HTTPS
1 insecure request found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.
Slmath.org Mobile Accessibility: 78/100
Quick overview:
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Image elements do not have `[alt]` attributes
Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.
Links do not have a discernible name
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Links rely on color to be distinguishable.
Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.
Elements with visible text labels do not have matching accessible names.
Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.
Best practices
These items highlight common accessibility best practices.
Touch targets do not have sufficient size or spacing.
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
`[user-scalable="no"]` is used in the `<meta name="viewport">` element or the `[maximum-scale]` attribute is less than 5.
Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.
Similar sites
Similar tests
www.slmath.com
www.slmath.net
www.slmath.org
www.slmath.info
www.slmath.biz
www.slmath.us
www.slmath.mobi
www.lmath.org
www.slmath.org
www.wlmath.org
www.swlmath.org
www.wslmath.org
www.elmath.org
www.selmath.org
www.eslmath.org
www.dlmath.org
www.sdlmath.org
www.dslmath.org
www.zlmath.org
www.szlmath.org
www.zslmath.org
www.xlmath.org
www.sxlmath.org
www.xslmath.org
www.almath.org
www.salmath.org
www.aslmath.org
www.smath.org
www.spmath.org
www.slpmath.org
www.splmath.org
www.somath.org
www.slomath.org
www.solmath.org
www.skmath.org
www.slkmath.org
www.sklmath.org
www.slath.org
www.slnath.org
www.slmnath.org
www.slnmath.org
www.sljath.org
www.slmjath.org
www.sljmath.org
www.slkath.org
www.slmkath.org
www.slmth.org
www.slmqth.org
www.slmaqth.org
www.slmqath.org
www.slmwth.org
www.slmawth.org
www.slmwath.org
www.slmsth.org
www.slmasth.org
www.slmsath.org
www.slmzth.org
www.slmazth.org
www.slmzath.org
www.slmah.org
www.slmarh.org
www.slmatrh.org
www.slmarth.org
www.slmafh.org
www.slmatfh.org
www.slmafth.org
www.slmagh.org
www.slmatgh.org
www.slmagth.org
www.slmayh.org
www.slmatyh.org
www.slmayth.org
www.slmat.org
www.slmatb.org
www.slmathb.org
www.slmatbh.org
www.slmatg.org
www.slmathg.org
www.slmaty.org
www.slmathy.org
www.slmatu.org
www.slmathu.org
www.slmatuh.org
www.slmatj.org
www.slmathj.org
www.slmatjh.org
www.slmatn.org
www.slmathn.org
www.slmatnh.org
www.slmath.net
www.slmath.org
www.slmath.info
www.slmath.biz
www.slmath.us
www.slmath.mobi
www.lmath.org
www.slmath.org
www.wlmath.org
www.swlmath.org
www.wslmath.org
www.elmath.org
www.selmath.org
www.eslmath.org
www.dlmath.org
www.sdlmath.org
www.dslmath.org
www.zlmath.org
www.szlmath.org
www.zslmath.org
www.xlmath.org
www.sxlmath.org
www.xslmath.org
www.almath.org
www.salmath.org
www.aslmath.org
www.smath.org
www.spmath.org
www.slpmath.org
www.splmath.org
www.somath.org
www.slomath.org
www.solmath.org
www.skmath.org
www.slkmath.org
www.sklmath.org
www.slath.org
www.slnath.org
www.slmnath.org
www.slnmath.org
www.sljath.org
www.slmjath.org
www.sljmath.org
www.slkath.org
www.slmkath.org
www.slmth.org
www.slmqth.org
www.slmaqth.org
www.slmqath.org
www.slmwth.org
www.slmawth.org
www.slmwath.org
www.slmsth.org
www.slmasth.org
www.slmsath.org
www.slmzth.org
www.slmazth.org
www.slmzath.org
www.slmah.org
www.slmarh.org
www.slmatrh.org
www.slmarth.org
www.slmafh.org
www.slmatfh.org
www.slmafth.org
www.slmagh.org
www.slmatgh.org
www.slmagth.org
www.slmayh.org
www.slmatyh.org
www.slmayth.org
www.slmat.org
www.slmatb.org
www.slmathb.org
www.slmatbh.org
www.slmatg.org
www.slmathg.org
www.slmaty.org
www.slmathy.org
www.slmatu.org
www.slmathu.org
www.slmatuh.org
www.slmatj.org
www.slmathj.org
www.slmatjh.org
www.slmatn.org
www.slmathn.org
www.slmatnh.org