Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 67% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

epa.aero

Home - EPA Training Center

Page Load Speed

3.2 sec in total

First Response

525 ms

Resources Loaded

2.4 sec

Page Rendered

239 ms

epa.aero screenshot

About Website

Click here to check amazing EPA content. Otherwise, check out these important facts you probably never knew about epa.aero

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Key Findings

We analyzed Epa.aero page load time and found that the first response time was 525 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

epa.aero performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value14.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value25.8 s

0/100

25%

SI (Speed Index)

Value26.1 s

0/100

10%

TBT (Total Blocking Time)

Value1,000 ms

27/100

30%

CLS (Cumulative Layout Shift)

Value0.573

12/100

15%

TTI (Time to Interactive)

Value30.8 s

0/100

10%

Network Requests Diagram

epa.aero

525 ms

reset.css

144 ms

styles.css

283 ms

styles-fonts.css

281 ms

jquery.lightbox-0.5.css

286 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 87% of them (39 requests) were addressed to the original Epa.aero, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Epa.aero.

Page Optimization Overview & Recommendations

Page size can be reduced by 255.6 kB (29%)

Content Size

892.4 kB

After Optimization

636.8 kB

In fact, the total size of Epa.aero main page is 892.4 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. 25% of websites need less resources to load. Images take 625.5 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 29.9 kB

  • Original 34.1 kB
  • After minification 20.0 kB
  • After compression 4.2 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. This page needs HTML code to be minified as it can gain 14.1 kB, which is 41% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 29.9 kB or 88% of the original size.

Image Optimization

-10%

Potential reduce by 63.9 kB

  • Original 625.5 kB
  • After minification 561.5 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. EPA images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 135.7 kB

  • Original 200.8 kB
  • After minification 168.1 kB
  • After compression 65.1 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 135.7 kB or 68% of the original size.

CSS Optimization

-81%

Potential reduce by 26.1 kB

  • Original 32.1 kB
  • After minification 28.2 kB
  • After compression 6.0 kB

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. Epa.aero needs all CSS files to be minified and compressed as it can save up to 26.1 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (65%)

Requests Now

43

After Optimization

15

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of EPA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

epa.aero accessibility score

87

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.

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.

Impact

Issue

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

epa.aero best practices score

83

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

epa.aero SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    PT

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Epa.aero can be misinterpreted by Google and other search engines. Our service has detected that Portuguese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Epa.aero main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of EPA. 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: