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senteacher.org screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

senteacher.org

SEN Teacher : Home Page

Page Load Speed

1.4 sec in total

First Response

56 ms

Resources Loaded

620 ms

Page Rendered

727 ms

senteacher.org screenshot

About Website

Visit senteacher.org now to see the best up-to-date SEN Teacher content for United States and also check out these interesting facts you probably never knew about senteacher.org

SEN Teacher is amongst the oldest teaching resource sites and has over 300,000 regular users. Our learning materials are free to share and use in schools or at home. The Print tools on SEN Teacher all...

Visit senteacher.org

Key Findings

We analyzed Senteacher.org page load time and found that the first response time was 56 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

senteacher.org performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

85/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value3,190 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value19.2 s

2/100

10%

Network Requests Diagram

senteacher.org

56 ms

www.senteacher.org

102 ms

bootstrap.min.css

69 ms

sencustom.css

81 ms

fontawesome.css

135 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 81% of them (30 requests) were addressed to the original Senteacher.org, 3% (1 request) were made to Fundingchoicesmessages.google.com and 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (249 ms) relates to the external source Pagead2.googlesyndication.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 500.8 kB (30%)

Content Size

1.7 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Senteacher.org main page is 1.7 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 70% of websites need less resources to load. Images take 893.6 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 36.7 kB

  • Original 43.6 kB
  • After minification 26.6 kB
  • After compression 6.9 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 17.0 kB, which is 39% 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 36.7 kB or 84% of the original size.

Image Optimization

-12%

Potential reduce by 107.7 kB

  • Original 893.6 kB
  • After minification 786.0 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, SEN Teacher needs image optimization as it can save up to 107.7 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 1.3 kB

  • Original 330.6 kB
  • After minification 330.6 kB
  • After compression 329.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-85%

Potential reduce by 355.2 kB

  • Original 418.4 kB
  • After minification 377.6 kB
  • After compression 63.2 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. Senteacher.org needs all CSS files to be minified and compressed as it can save up to 355.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (36%)

Requests Now

33

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SEN Teacher. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

senteacher.org

senteacher.org

56 ms

www.senteacher.org

www.senteacher.org

102 ms

bootstrap.min.css

bootstrap.min.css

69 ms

sencustom.css

sencustom.css

81 ms

fontawesome.css

fontawesome.css

135 ms

pub-2683290096831465

pub-2683290096831465

101 ms

js

js

90 ms

api.js

api.js

80 ms

adsbygoogle.js

adsbygoogle.js

249 ms

jquery.js

jquery.js

96 ms

bootstrap.js

bootstrap.js

132 ms

utils.js

utils.js

83 ms

net.js

net.js

96 ms

element.js

element.js

83 ms

css2

css2

64 ms

blueback.png

blueback.png

73 ms

subtlewhitepaper.jpeg

subtlewhitepaper.jpeg

72 ms

logo_640.png

logo_640.png

140 ms

7.png

7.png

73 ms

10.png

10.png

75 ms

29.png

29.png

73 ms

21.png

21.png

73 ms

18.png

18.png

139 ms

8.png

8.png

200 ms

40.png

40.png

139 ms

32.png

32.png

74 ms

4.png

4.png

200 ms

20.png

20.png

199 ms

1.png

1.png

199 ms

33.png

33.png

200 ms

17.png

17.png

199 ms

52.png

52.png

204 ms

43.png

43.png

205 ms

37.png

37.png

204 ms

recaptcha__en.js

recaptcha__en.js

138 ms

fa-duotone-900.woff

fa-duotone-900.woff

56 ms

fa-brands-400.woff

fa-brands-400.woff

47 ms

Accessibility Review

senteacher.org accessibility score

98

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.

Best Practices

senteacher.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

senteacher.org 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 Senteacher.org 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 Senteacher.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

senteacher.org

Open Graph data is detected on the main page of SEN Teacher. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: