Tools & Wizards About Us

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

buffalo.overdrive.com

Buffalo & Erie County Public Library - OverDrive

Page Load Speed

4.4 sec in total

First Response

34 ms

Resources Loaded

3.5 sec

Page Rendered

906 ms

About Website

Visit buffalo.overdrive.com now to see the best up-to-date Buffalo Over Drive content for United States and also check out these interesting facts you probably never knew about buffalo.overdrive.com

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

Visit buffalo.overdrive.com

Key Findings

We analyzed Buffalo.overdrive.com page load time and found that the first response time was 34 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

buffalo.overdrive.com performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value22.4 s

0/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value11,030 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value25.4 s

0/100

10%

Network Requests Diagram

buffalo.overdrive.com

34 ms

buffalo.overdrive.com

87 ms

vendor.bundle.min.b062de5a03333401085c20696b3eec95.css

53 ms

app.bundle.min.a8692375bae0efc3dd193e06640b2db8.css

71 ms

contrast.min.ab134c0efa8d81b236c48ad06b7aa608.css

48 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 11% of them (7 requests) were addressed to the original Buffalo.overdrive.com, 49% (32 requests) were made to Lightning.od-cdn.com and 11% (7 requests) were made to Ic.od-cdn.com. The less responsive or slowest element that took the longest time to load (640 ms) belongs to the original domain Buffalo.overdrive.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 798.6 kB (27%)

Content Size

2.9 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Buffalo.overdrive.com main page is 2.9 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

-87%

Potential reduce by 265.6 kB

  • Original 307.1 kB
  • After minification 282.4 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 265.6 kB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 9 B

  • Original 513.5 kB
  • After minification 513.5 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. Buffalo Over Drive images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 533.0 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 533.0 kB or 25% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (37%)

Requests Now

59

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Buffalo 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 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

Accessibility Review

buffalo.overdrive.com 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

buffalo.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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

buffalo.overdrive.com 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

    N/A

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

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