Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

coolrom.eu

CoolROM - N64 ROMs GBA ROMs SNES ROMs NDS ROMs GBC ROMs NES ROMs MAME ROMs PSX ROMs Gamecube ROMs ISOs and Emulators

Page Load Speed

2.4 sec in total

First Response

370 ms

Resources Loaded

1.8 sec

Page Rendered

230 ms

coolrom.eu screenshot

About Website

Click here to check amazing CoolROM content for United States. Otherwise, check out these important facts you probably never knew about coolrom.eu

Download from the largest and cleanest ROMs and emulators resource on the net. Mobile optimized. Systems include N64, GBA, SNES, NDS, GBC, NES, MAME, PSX, Gamecube and more.

Visit coolrom.eu

Key Findings

We analyzed Coolrom.eu page load time and found that the first response time was 370 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

coolrom.eu performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.5 s

95/100

10%

LCP (Largest Contentful Paint)

Value1.5 s

99/100

25%

SI (Speed Index)

Value1.7 s

100/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.8 s

100/100

10%

Network Requests Diagram

coolrom.eu

370 ms

main.css

309 ms

download-roms-icon.png

784 ms

CoolROM-01.png

301 ms

nintendo-characters.jpg

1403 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that 50% of them (5 requests) were addressed to the original Coolrom.eu, 30% (3 requests) were made to Theoldcomputer.com and 20% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Coolrom.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 50.7 kB (5%)

Content Size

923.3 kB

After Optimization

872.6 kB

In fact, the total size of Coolrom.eu main page is 923.3 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 10% of websites need less resources to load. Images take 859.4 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 6.2 kB

  • Original 8.9 kB
  • After minification 8.6 kB
  • After compression 2.7 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 6.2 kB or 70% of the original size.

Image Optimization

-1%

Potential reduce by 11.0 kB

  • Original 859.4 kB
  • After minification 848.4 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. CoolROM images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 32.0 kB

  • Original 52.9 kB
  • After minification 52.9 kB
  • After compression 20.9 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 32.0 kB or 60% of the original size.

CSS Optimization

-72%

Potential reduce by 1.5 kB

  • Original 2.0 kB
  • After minification 1.4 kB
  • After compression 562 B

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Coolrom.eu needs all CSS files to be minified and compressed as it can save up to 1.5 kB or 72% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CoolROM. According to our analytics all requests are already optimized.

Accessibility Review

coolrom.eu accessibility score

88

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best Practices

coolrom.eu best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

coolrom.eu SEO score

100

Search Engine Optimization Advices

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Coolrom.eu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Coolrom.eu main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of CoolROM. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: