Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    65% of websites

  • 91

    SEO

    Google-friendlier than
    76% of websites

energyteachers.org

EnergyTeachers.org - The network for educators interested in energy production and use

Page Load Speed

536 ms in total

First Response

82 ms

Resources Loaded

363 ms

Page Rendered

91 ms

energyteachers.org screenshot

About Website

Click here to check amazing Energy Teachers content. Otherwise, check out these important facts you probably never knew about energyteachers.org

Visit energyteachers.org

Key Findings

We analyzed Energyteachers.org page load time and found that the first response time was 82 ms and then it took 454 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

energyteachers.org performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value0.7 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

Network Requests Diagram

energyteachers.org

82 ms

plusone.js

103 ms

all.js

12 ms

donations.png

45 ms

help.png

56 ms

Our browser made a total of 29 requests to load all elements on the main page. We found that 45% of them (13 requests) were addressed to the original Energyteachers.org, 28% (8 requests) were made to Apis.google.com and 7% (2 requests) were made to Paypal.com. The less responsive or slowest element that took the longest time to load (136 ms) relates to the external source Facebook.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 18.9 kB (42%)

Content Size

45.4 kB

After Optimization

26.5 kB

In fact, the total size of Energyteachers.org main page is 45.4 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. 30% of websites need less resources to load. Images take 23.1 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 8.3 kB

  • Original 11.9 kB
  • After minification 11.8 kB
  • After compression 3.6 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 8.3 kB or 69% of the original size.

Image Optimization

-20%

Potential reduce by 4.6 kB

  • Original 23.1 kB
  • After minification 18.4 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. Obviously, Energy Teachers needs image optimization as it can save up to 4.6 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 6.0 kB

  • Original 10.4 kB
  • After minification 10.4 kB
  • After compression 4.4 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 6.0 kB or 58% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (29%)

Requests Now

28

After Optimization

20

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Energy Teachers. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

energyteachers.org accessibility score

80

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

energyteachers.org 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

SEO Factors

energyteachers.org SEO score

91

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Energyteachers.org can be misinterpreted by Google and other search engines. Our service has detected that English 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 Energyteachers.org 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 Energy Teachers. 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: