astromundus.com - Mobile Friendly Test

Astromundus.com Test Results

Astromundus.com Mobile Performance: 28/100

Quick overview:

Opportunities

These suggestions can help your page load faster. They don't directly affect the Performance score.

Eliminate render-blocking resources. Potential savings of 6,470 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn more.

Remove unused CSS. Potential savings of 271 KiB

Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity. Learn more.

Remove unused JavaScript. Potential savings of 278 KiB

Remove unused JavaScript to reduce bytes consumed by network activity. Learn more.

Minify CSS. Potential savings of 21 KiB

Minifying CSS files can reduce network payload sizes. Learn more.

Serve images in next-gen formats. Potential savings of 38 KiB

Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more.

Diagnostics

More information about the performance of your application. These numbers don't directly affect the Performance score.

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.

Serve static assets with an efficient cache policy

7 resources found

A long cache lifetime can speed up repeat visits to your page. Learn more.

Minimize main-thread work

3.3 s

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn more

Reduce JavaScript execution time

1.7 s

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn more.

Keep request counts low and transfer sizes small

66 requests • 1,263 KiB

To set budgets for the quantity and size of page resources, add a budget.json file. Learn more.

Largest Contentful Paint element

1 element found

This is the largest contentful element painted within the viewport. Learn More

Avoid chaining critical requests

36 chains found

The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load. Learn more.

Avoid long main-thread tasks

11 long tasks found

Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn more

Astromundus.com Mobile SEO: 79/100

Quick overview:

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Document does not have a meta description

Meta descriptions may be included in search results to concisely summarize page content. Learn more.

Links do not have descriptive text

1 link found

Descriptive link text helps search engines understand your content. Learn more.

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Links are not crawlable

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn More

Astromundus.com Mobile Best Practices: 62/100

Quick overview:

User Experience

Serves images with low resolution

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn more.

General

Browser errors were logged to the console

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more

Trust and Safety

Includes front-end JavaScript libraries with known security vulnerabilities

4 vulnerabilities detected

Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers. Learn more.

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 servedover 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.

Links to cross-origin destinations are unsafe

Add `rel="noopener"` or `rel="noreferrer"` to any external links to improve performance and prevent security vulnerabilities. Learn more.

Astromundus.com Mobile Progressive Web App: 25/100

Quick overview:

PWA Optimized

Manifest doesn't have a maskable icon

A maskable icon ensures that the image fills the entire shape without being letterboxed when installing the app on a device. Learn more. No manifest was fetched

Does not set a theme color for the address bar.

The browser address bar can be themed to match your site. Learn more. Failures: No manifest was fetched, No `<meta name="theme-color">` tag found.

Is not configured for a custom splash screen

A themed splash screen ensures a high-quality experience when users launch your app from their homescreens. Learn more. Failures: No manifest was fetched.

Installable

Does not register a service worker that controls page and `start_url`

The service worker is the technology that enables your app to use many Progressive Web App features, such as offline, add to homescreen, and push notifications. Learn more.

Web app manifest does not meet the installability requirements

Browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement. Learn more. Failures: No manifest was fetched.

Does not use HTTPS

1 insecure request found

Fast and reliable

Current page does not respond with a 200 when offline

If you're building a Progressive Web App, consider using a service worker so that your app can work offline. Learn more.

Page load is not fast enough on mobile networks

Interactive at 11.6 s

A fast page load over a cellular network ensures a good mobile user experience. Learn more. Your page loads too slowly and is not interactive within 10 seconds. Look at the opportunities and diagnostics in the "Performance" section to learn how to improve.

`start_url` does not respond with a 200 when offline

A service worker enables your web app to be reliable in unpredictable network conditions. Learn more. No usable web app manifest found on page.

Astromundus.com Mobile Accessibility: 91/100

Quick overview:

Best practices

These items highlight common accessibility best practices.

`[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.

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