Tools & Wizards About Us
burlington.bibliocommons.com screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

burlington.bibliocommons.com

Recent Activity | Burlington Public Library | BiblioCommons

Page Load Speed

2.1 sec in total

First Response

35 ms

Resources Loaded

2 sec

Page Rendered

98 ms

burlington.bibliocommons.com screenshot

About Website

Click here to check amazing Burlington Biblio Commons content for United States. Otherwise, check out these important facts you probably never knew about burlington.bibliocommons.com

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Key Findings

We analyzed Burlington.bibliocommons.com page load time and found that the first response time was 35 ms and then it took 2.1 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

burlington.bibliocommons.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value17.4 s

0/100

25%

SI (Speed Index)

Value12.4 s

3/100

10%

TBT (Total Blocking Time)

Value4,370 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.534

14/100

15%

TTI (Time to Interactive)

Value17.6 s

4/100

10%

Network Requests Diagram

burlington.bibliocommons.com

35 ms

burlington.bibliocommons.com

1210 ms

gtm.js

147 ms

bc_base-7458b34fb4de9be11818e405e123b860.css

88 ms

core-0ebb1c96c1022e0da243d70f0cde2466.css

102 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that 13% of them (3 requests) were addressed to the original Burlington.bibliocommons.com, 46% (11 requests) were made to Cor-cdn-static.bibliocommons.com and 13% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Burlington.bibliocommons.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 150.8 kB (10%)

Content Size

1.5 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Burlington.bibliocommons.com main page is 1.5 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. Javascripts take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 145.1 kB

  • Original 170.4 kB
  • After minification 167.3 kB
  • After compression 25.3 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 145.1 kB or 85% of the original size.

Image Optimization

-9%

Potential reduce by 2.3 kB

  • Original 25.0 kB
  • After minification 22.7 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. Burlington Biblio Commons images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 9 B

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 1.2 MB

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

-4%

Potential reduce by 3.3 kB

  • Original 95.1 kB
  • After minification 95.1 kB
  • After compression 91.7 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. Burlington.bibliocommons.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (67%)

Requests Now

18

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Burlington Biblio Commons. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

burlington.bibliocommons.com

burlington.bibliocommons.com

35 ms

burlington.bibliocommons.com

burlington.bibliocommons.com

1210 ms

gtm.js

gtm.js

147 ms

bc_base-7458b34fb4de9be11818e405e123b860.css

bc_base-7458b34fb4de9be11818e405e123b860.css

88 ms

core-0ebb1c96c1022e0da243d70f0cde2466.css

core-0ebb1c96c1022e0da243d70f0cde2466.css

102 ms

dashboard-aa0ea2fdf1b09998517dc104ca00771e.css

dashboard-aa0ea2fdf1b09998517dc104ca00771e.css

121 ms

library_branding.css

library_branding.css

124 ms

vendor-c51265b3f46952539b0d2eb34dbdeee1.js

vendor-c51265b3f46952539b0d2eb34dbdeee1.js

120 ms

sdk.js

sdk.js

132 ms

core-9dcdf893958c70a566159f0e9c75e4b3.js

core-9dcdf893958c70a566159f0e9c75e4b3.js

112 ms

dashboard-a605c3c1378d3878459ead05a2cd8d03.js

dashboard-a605c3c1378d3878459ead05a2cd8d03.js

112 ms

css

css

43 ms

logo.png

logo.png

280 ms

app.sdk-fd090f8a2b07b3524d03.css

app.sdk-fd090f8a2b07b3524d03.css

84 ms

app.sdk-fd090f8a2b07b3524d03.js

app.sdk-fd090f8a2b07b3524d03.js

250 ms

preloader.grey-0972ac11db78fb0f16f5338beb76d559.gif

preloader.grey-0972ac11db78fb0f16f5338beb76d559.gif

71 ms

base_master-9668a2e92af385e1e8e47db36e3c7845.png

base_master-9668a2e92af385e1e8e47db36e3c7845.png

69 ms

ajax-loader-2ad22ee6988a62b7f1661cb696219501.gif

ajax-loader-2ad22ee6988a62b7f1661cb696219501.gif

69 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVc.ttf

105 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVc.ttf

244 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVc.ttf

249 ms

fontello-7aaf5df643343c6846d1d2be8803acd8.woff

fontello-7aaf5df643343c6846d1d2be8803acd8.woff

69 ms

print-887e1ad12746a48f7a18776d8f41080c.css

print-887e1ad12746a48f7a18776d8f41080c.css

21 ms

css

css

37 ms

Accessibility Review

burlington.bibliocommons.com accessibility score

98

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

burlington.bibliocommons.com best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

burlington.bibliocommons.com SEO score

90

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Burlington.bibliocommons.com 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 Burlington.bibliocommons.com 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

burlington.bibliocommons.com

Open Graph description is not detected on the main page of Burlington Biblio Commons. 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: