Tools & Wizards About Us
overdrive.buffalolib.org screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

overdrive.buffalolib.org

Buffalo & Erie County Public Library - OverDrive

Page Load Speed

4.2 sec in total

First Response

77 ms

Resources Loaded

3.4 sec

Page Rendered

729 ms

overdrive.buffalolib.org screenshot

About Website

Click here to check amazing Over Drive Buffalo Lib content for United States. Otherwise, check out these important facts you probably never knew about overdrive.buffalolib.org

Browse, borrow, and enjoy titles from the Buffalo & Erie County Public Library digital collection.

Visit overdrive.buffalolib.org

Key Findings

We analyzed Overdrive.buffalolib.org page load time and found that the first response time was 77 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

overdrive.buffalolib.org performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

19/100

10%

LCP (Largest Contentful Paint)

Value21.5 s

0/100

25%

SI (Speed Index)

Value8.8 s

15/100

10%

TBT (Total Blocking Time)

Value8,600 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.01

100/100

15%

TTI (Time to Interactive)

Value23.7 s

1/100

10%

Network Requests Diagram

buffalo.overdrive.com

77 ms

vendor.bundle.min.b062de5a03333401085c20696b3eec95.css

54 ms

app.bundle.min.d9deefff2fabfd559404a588e73949ca.css

65 ms

contrast.min.883379c23444da14c0f7480023f6696e.css

49 ms

colors.css

38 ms

Our browser made a total of 66 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Overdrive.buffalolib.org, 12% (8 requests) were made to Img3.od-cdn.com and 9% (6 requests) were made to Buffalo.overdrive.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Thunder.cdn.overdrive.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 795.7 kB (27%)

Content Size

3.0 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Overdrive.buffalolib.org main page is 3.0 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. Only a small number of websites need less resources to load. Javascripts take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 264.1 kB

  • Original 305.5 kB
  • After minification 280.8 kB
  • After compression 41.4 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 264.1 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 9 B

  • Original 564.5 kB
  • After minification 564.5 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. Over Drive Buffalo Lib images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 531.6 kB

  • Original 2.1 MB
  • After minification 2.1 MB
  • After compression 1.6 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 531.6 kB or 25% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (36%)

Requests Now

61

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Over Drive Buffalo Lib. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

buffalo.overdrive.com

buffalo.overdrive.com

77 ms

vendor.bundle.min.b062de5a03333401085c20696b3eec95.css

vendor.bundle.min.b062de5a03333401085c20696b3eec95.css

54 ms

app.bundle.min.d9deefff2fabfd559404a588e73949ca.css

app.bundle.min.d9deefff2fabfd559404a588e73949ca.css

65 ms

contrast.min.883379c23444da14c0f7480023f6696e.css

contrast.min.883379c23444da14c0f7480023f6696e.css

49 ms

colors.css

colors.css

38 ms

vendor.bundle.min.f23b75dd56a005d9261e6d9ace1927a2.js

vendor.bundle.min.f23b75dd56a005d9261e6d9ace1927a2.js

89 ms

holds.app.min.002285453e767057b4a358d579b645fe.js

holds.app.min.002285453e767057b4a358d579b645fe.js

52 ms

main.6da7304f.js

main.6da7304f.js

88 ms

en.05388b10734cf05f27b8ce9cd007b57d.js

en.05388b10734cf05f27b8ce9cd007b57d.js

88 ms

assetMapper.bundle.min.5f597db8e30c1247070b8ead29ff76a9.js

assetMapper.bundle.min.5f597db8e30c1247070b8ead29ff76a9.js

88 ms

app.bundle.min.751e5991137f80c86db73568b1f7ecda.js

app.bundle.min.751e5991137f80c86db73568b1f7ecda.js

195 ms

home.bundle.min.0b3cbaf0c723ff6ea89881913fae0b52.js

home.bundle.min.0b3cbaf0c723ff6ea89881913fae0b52.js

190 ms

182.6ee964f6.chunk.js

182.6ee964f6.chunk.js

332 ms

539.4c052a03.chunk.js

539.4c052a03.chunk.js

330 ms

gtm.js

gtm.js

1679 ms

1241.png

1241.png

1735 ms

home

home

111 ms

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1345 ms

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proximanova-semibold.1d2564dbb6e7fcb251baaf25a99d5e21.svg

1344 ms

icons.90c4cf91da33f08c6b548e66621c813c.woff

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1345 ms

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1328 ms

media

media

490 ms

media

media

449 ms

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738 ms

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64 ms

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67 ms

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app-store-badge-google.cd7089d9298aa9bcc6294bd84ff8a1a3.svg

69 ms

859.c57cd5f3.chunk.js

859.c57cd5f3.chunk.js

165 ms

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162 ms

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proximanova-regular.8241a110181ed059eca66be525799255.woff

215 ms

proximanova-semibold.1530392f014996326169abd15fed2e78.woff

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214 ms

museo-slab-500.92c783308d2d88f876dc551ff623576a.woff

museo-slab-500.92c783308d2d88f876dc551ff623576a.woff

213 ms

js

js

323 ms

analytics.js

analytics.js

312 ms

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654 ms

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%7B0DCD5778-D221-49D7-8E1F-426084B98355%7DImg400.jpg

707 ms

resize

resize

701 ms

%7B7B5E85BB-0CDB-456C-A417-1C642DC2A7F1%7DImg400.jpg

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678 ms

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691 ms

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679 ms

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590 ms

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647 ms

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653 ms

resize

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656 ms

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636 ms

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636 ms

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415 ms

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304 ms

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304 ms

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304 ms

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302 ms

resize

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334 ms

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296 ms

collect

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65 ms

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103 ms

collect

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78 ms

collect

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109 ms

ga-audiences

ga-audiences

132 ms

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124 ms

Accessibility Review

overdrive.buffalolib.org accessibility score

90

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

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

overdrive.buffalolib.org 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

Page has valid source maps

SEO Factors

overdrive.buffalolib.org SEO score

82

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 Overdrive.buffalolib.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 Overdrive.buffalolib.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

overdrive.buffalolib.org

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