Tools & Wizards About Us
teacherlibrarian.org screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    53% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

teacherlibrarian.org

TLNing (teacherlibrarian.org)

Page Load Speed

3.7 sec in total

First Response

941 ms

Resources Loaded

2.4 sec

Page Rendered

429 ms

teacherlibrarian.org screenshot

About Website

Click here to check amazing Teacherlibrarian content. Otherwise, check out these important facts you probably never knew about teacherlibrarian.org

Librarians without borders: For those of us who connect, teach, share, and lead in new information landscapes.

Visit teacherlibrarian.org

Key Findings

We analyzed Teacherlibrarian.org page load time and found that the first response time was 941 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

teacherlibrarian.org performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value6.9 s

33/100

10%

TBT (Total Blocking Time)

Value710 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.0 s

21/100

10%

Network Requests Diagram

www.teacherlibrarian.org

941 ms

gtm.js

58 ms

slick.css

35 ms

css

43 ms

base-and-theme-styles-css

337 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 7% of them (5 requests) were addressed to the original Teacherlibrarian.org, 42% (31 requests) were made to Storage.ning.com and 24% (18 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (941 ms) belongs to the original domain Teacherlibrarian.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 285.9 kB (63%)

Content Size

456.9 kB

After Optimization

171.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Teacherlibrarian.org main page is 456.9 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. HTML takes 265.8 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 238.7 kB

  • Original 265.8 kB
  • After minification 229.0 kB
  • After compression 27.1 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 36.8 kB, which is 14% 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 238.7 kB or 90% of the original size.

Image Optimization

-42%

Potential reduce by 1.3 kB

  • Original 3.2 kB
  • After minification 1.9 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, Teacherlibrarian needs image optimization as it can save up to 1.3 kB or 42% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-26%

Potential reduce by 44.9 kB

  • Original 172.4 kB
  • After minification 171.8 kB
  • After compression 127.5 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 44.9 kB or 26% of the original size.

CSS Optimization

-6%

Potential reduce by 927 B

  • Original 15.5 kB
  • After minification 15.5 kB
  • After compression 14.5 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. Teacherlibrarian.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 30 (50%)

Requests Now

60

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Teacherlibrarian. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.teacherlibrarian.org

www.teacherlibrarian.org

941 ms

gtm.js

gtm.js

58 ms

slick.css

slick.css

35 ms

css

css

43 ms

base-and-theme-styles-css

base-and-theme-styles-css

337 ms

custom-css

custom-css

297 ms

iconFont.css

iconFont.css

6 ms

css

css

36 ms

11025056691

11025056691

94 ms

871193392

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156 ms

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83 ms

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81 ms

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84 ms

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11023474882

84 ms

12940592698

12940592698

9 ms

3839426938

3839426938

86 ms

3558303057

3558303057

46 ms

spinner_20.gif

spinner_20.gif

6 ms

3426076402

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78 ms

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79 ms

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80 ms

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65 ms

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70 ms

863568054

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115 ms

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309 ms

2538906364

2538906364

118 ms

967477040

967477040

80 ms

widget.js

widget.js

12 ms

core.min.js

core.min.js

11 ms

slick.min.js

slick.min.js

13 ms

xn_track.min.js

xn_track.min.js

15 ms

default-avatar.png

default-avatar.png

111 ms

widgets.js

widgets.js

129 ms

www.teacherlibrarian.org

www.teacherlibrarian.org

887 ms

NING_MM_footer_blk1.png

NING_MM_footer_blk1.png

100 ms

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11024120488

108 ms

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101 ms

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103 ms

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103 ms

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110 ms

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109 ms

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105 ms

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108 ms

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107 ms

11023735284

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129 ms

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129 ms

11023762668

11023762668

128 ms

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

6 ms

jquery.jsonp.min.js

jquery.jsonp.min.js

13 ms

sdk.js

sdk.js

151 ms

jquery-ui.min.js

jquery-ui.min.js

13 ms

decimal.min.js

decimal.min.js

13 ms

11023402675

11023402675

14 ms

loader

loader

41 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

37 ms

settings

settings

97 ms

timeline.e108540dddc96e4b707f5cf259a582d7.js

timeline.e108540dddc96e4b707f5cf259a582d7.js

3 ms

search

search

60 ms

search

search

161 ms

polyfills-a40ef1678bae11e696dba45124eadd70.js

polyfills-a40ef1678bae11e696dba45124eadd70.js

8 ms

runtime-b1c52fd0a13ead5fcf6b.js

runtime-b1c52fd0a13ead5fcf6b.js

30 ms

modules-96ebc7ac3ad66d681a3d.js

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43 ms

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%5BscreenName%5D-0517bdda27d5006a5a2d.js

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42 ms

_buildManifest.js

_buildManifest.js

43 ms

_ssgManifest.js

_ssgManifest.js

78 ms

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31 ms

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32 ms

5893.d500bd2a89ded806aa73.js

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31 ms

Accessibility Review

teacherlibrarian.org accessibility score

70

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

ARIA toggle fields do not have accessible names

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

teacherlibrarian.org best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

teacherlibrarian.org SEO score

76

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

robots.txt is not valid

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 Teacherlibrarian.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 Teacherlibrarian.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

teacherlibrarian.org

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