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odmc.overdrive.com screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

odmc.overdrive.com

Ontario Library Service Consortium - OverDrive

Page Load Speed

1.2 sec in total

First Response

285 ms

Resources Loaded

788 ms

Page Rendered

92 ms

odmc.overdrive.com screenshot

About Website

Welcome to odmc.overdrive.com homepage info - get ready to check Odmc Over Drive best content for United States right away, or after learning these important things about odmc.overdrive.com

Browse, borrow, and enjoy titles from the Ontario Library Service Consortium digital collection.

Visit odmc.overdrive.com

Key Findings

We analyzed Odmc.overdrive.com page load time and found that the first response time was 285 ms and then it took 880 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

odmc.overdrive.com performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value12.2 s

0/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value5,520 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value13.7 s

10/100

10%

Network Requests Diagram

odmc.overdrive.com

285 ms

odmc.overdrive.com

128 ms

vendor.bundle.min.css

57 ms

app.bundle.min.css

71 ms

contrast.min.css

68 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 21% of them (4 requests) were addressed to the original Odmc.overdrive.com, 68% (13 requests) were made to Lightning.od-cdn.com and 5% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (285 ms) belongs to the original domain Odmc.overdrive.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (78%)

Content Size

1.6 MB

After Optimization

340.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Odmc.overdrive.com main page is 1.6 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. 65% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 65.5 kB

  • Original 78.0 kB
  • After minification 59.1 kB
  • After compression 12.5 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 18.9 kB, which is 24% 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 65.5 kB or 84% of the original size.

Image Optimization

-36%

Potential reduce by 10.5 kB

  • Original 28.8 kB
  • After minification 18.3 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, Odmc Over Drive needs image optimization as it can save up to 10.5 kB or 36% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-76%

Potential reduce by 816.0 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 254.7 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 816.0 kB or 76% of the original size.

CSS Optimization

-86%

Potential reduce by 347.1 kB

  • Original 401.6 kB
  • After minification 401.5 kB
  • After compression 54.5 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. Odmc.overdrive.com needs all CSS files to be minified and compressed as it can save up to 347.1 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (50%)

Requests Now

14

After Optimization

7

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Odmc Over Drive. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

odmc.overdrive.com

odmc.overdrive.com

285 ms

odmc.overdrive.com

odmc.overdrive.com

128 ms

vendor.bundle.min.css

vendor.bundle.min.css

57 ms

app.bundle.min.css

app.bundle.min.css

71 ms

contrast.min.css

contrast.min.css

68 ms

colors.css

colors.css

43 ms

vendor.bundle.min.js

vendor.bundle.min.js

88 ms

en.js

en.js

72 ms

app.bundle.min.js

app.bundle.min.js

118 ms

home.bundle.min.js

home.bundle.min.js

71 ms

gtm.js

gtm.js

225 ms

1702

1702

233 ms

home

home

116 ms

no-cover_en_US.jpg

no-cover_en_US.jpg

13 ms

proximanova-regular.svg

proximanova-regular.svg

17 ms

proximanova-semibold.svg

proximanova-semibold.svg

13 ms

icons.woff

icons.woff

13 ms

proximanova-regular.woff

proximanova-regular.woff

10 ms

proximanova-semibold.woff

proximanova-semibold.woff

11 ms

Accessibility Review

odmc.overdrive.com accessibility score

83

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-*] attributes are not valid or misspelled

High

ARIA IDs are not unique

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

Best Practices

odmc.overdrive.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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

odmc.overdrive.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

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Odmc.overdrive.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 Odmc.overdrive.com main page’s claimed encoding is . 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

odmc.overdrive.com

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