Access buffalo.overdrive.com. Buffalo & Erie County Public Library

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

6/100

10%

LCP (Largest Contentful Paint)

Value23.1 s

0/100

25%

SI (Speed Index)

Value28.6 s

0/100

10%

TBT (Total Blocking Time)

Value24,850 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value32.3 s

0/100

10%

buffalo.overdrive.com

162 ms

buffalo.overdrive.com

304 ms

css-bundle.css

97 ms

hero.min.css

95 ms

js-vendor-bundle.js

128 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 4% of them (2 requests) were addressed to the original Buffalo.overdrive.com, 45% (25 requests) were made to Lightning.cdn.overdrive.com and 16% (9 requests) were made to Images.cdn.overdrive.com. The less responsive or slowest element that took the longest time to load (327 ms) relates to the external source Stats.g.doubleclick.net.

Content Size

1.7 MB

After Optimization

947.9 kB

In fact, the total size of Buffalo.overdrive.com main page is 1.7 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. Images take 784.1 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 434.6 kB

Original 480.5 kB
After minification 376.2 kB
After compression 45.9 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 104.4 kB, which is 22% 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 434.6 kB or 90% of the original size.

Image Optimization

-3%

Potential reduce by 26.5 kB

Original 784.1 kB
After minification 757.7 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. Buffalo Over Drive images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 329.1 kB

Original 473.3 kB
After minification 424.1 kB
After compression 144.3 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 329.1 kB or 70% of the original size.

Requests Now

After Optimization

The browser has sent 49 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 17 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

High

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

High

[aria-*] attributes are not valid or misspelled

High

ARIA IDs are not unique

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

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/).

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 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 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

buffalo.overdrive.com

Open Graph description is not detected on the main page of Buffalo Over Drive. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Buffalo & Erie County Public Library - OverDrive

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

buffalo.overdrive.com

buffalo.overdrive.com

css-bundle.css

hero.min.css

js-vendor-bundle.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

buffalo.overdrive.com

buffalo.overdrive.com

css-bundle.css

hero.min.css

js-vendor-bundle.js

toaster.js

actions.js

title-actions.js

nav.js

sample.js

foundation.js

js-foundation-bundle.js

app.js

utility.js

home.js

modal.js

placeholder.js

gtm.js

1241

%7B84B3C6B3-6CC7-487B-B746-CAEE8A482782%7DImg400.jpg

loading2.gif

BLR-logo.png

bn-logo.jpg

proximanova-regular.svg

proximanova-semibold.svg

icons.woff

freight-light.woff

proximanova-regular.woff

proximanova-semibold.woff

analytics.js

collect

collect

collect

collect

ga-audiences

loading.gif

nr-885.min.js

%7B43D9F63C-3B59-46BC-8085-A531074A9500%7DImg400.jpg

%7BD0C1F72E-80E7-4D0A-AF99-57F69A442A1E%7DImg400.jpg

%7B2C76E8EC-7712-48D9-9A39-BB21611BCD4E%7DImg400.jpg

%7BE4B6CBFC-E649-4A54-8A22-22763D0FDF7C%7DImg400.jpg

%7B0CE48CD4-51AE-401D-9111-0B192E9A6901%7DImg400.jpg

%7BEB0EF139-0CF7-43DF-9196-7008AE7CC4B9%7DImg400.jpg

%7B700C381C-2E73-44F4-BE4E-EC7B9E46C405%7DImg400.jpg