Tools & Wizards About Us

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

expansion.citibikenyc.com

Citi Bike: NYC’s Official Bike Sharing System | Citi Bike NYC | Citi Bike NYC

Page Load Speed

854 ms in total

First Response

100 ms

Resources Loaded

518 ms

Page Rendered

236 ms

About Website

Welcome to expansion.citibikenyc.com homepage info - get ready to check Expansion Citi Bike NYC best content for United States right away, or after learning these important things about expansion.citibikenyc.com

Experience the best way to get around Manhattan, Brooklyn, Queens, Hoboken & Jersey City with Citi Bike, New York’s bike share system.

Visit expansion.citibikenyc.com

Key Findings

We analyzed Expansion.citibikenyc.com page load time and found that the first response time was 100 ms and then it took 754 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

expansion.citibikenyc.com performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

42/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value4.4 s

74/100

10%

TBT (Total Blocking Time)

Value1,470 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0.037

100/100

15%

TTI (Time to Interactive)

Value14.7 s

8/100

10%

Network Requests Diagram

citibikenyc.com

100 ms

gtm.js

81 ms

4b5abb3ebce5154d.css

55 ms

37222275d19554c4.css

59 ms

polyfills-78c92fac7aa8fdd8.js

184 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Expansion.citibikenyc.com, 9% (4 requests) were made to Images.ctfassets.net and 5% (2 requests) were made to Lyft-lastmile-production-iad.s3.amazonaws.com. The less responsive or slowest element that took the longest time to load (323 ms) relates to the external source Cdn.lyft.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 106.3 kB (8%)

Content Size

1.3 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Expansion.citibikenyc.com main page is 1.3 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. 60% of websites need less resources to load. Javascripts take 754.4 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 97.1 kB

  • Original 133.0 kB
  • After minification 133.0 kB
  • After compression 35.9 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. 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 97.1 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 8.6 kB

  • Original 372.3 kB
  • After minification 363.7 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. Expansion Citi Bike NYC images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 567 B

  • Original 754.4 kB
  • After minification 754.4 kB
  • After compression 753.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 39 B

  • Original 15.6 kB
  • After minification 15.6 kB
  • After compression 15.6 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. Expansion.citibikenyc.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 26 (70%)

Requests Now

37

After Optimization

11

  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Expansion Citi Bike NYC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

expansion.citibikenyc.com accessibility score

92

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-*] attributes do not match their roles

Best Practices

expansion.citibikenyc.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

expansion.citibikenyc.com SEO score

98

Search Engine Optimization Advices

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 Expansion.citibikenyc.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 Expansion.citibikenyc.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

Open Graph data is detected on the main page of Expansion Citi Bike NYC. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: