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swimmablenyc.org screenshot

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

swimmablenyc.org

SWIM Coalition | Swimmable and Fishable Waters in NYC

Page Load Speed

912 ms in total

First Response

91 ms

Resources Loaded

731 ms

Page Rendered

90 ms

swimmablenyc.org screenshot

About Website

Welcome to swimmablenyc.org homepage info - get ready to check Swimmable NYC best content right away, or after learning these important things about swimmablenyc.org

New York City Stormwater Advocacy: SWIM is a coalition of 70+ organizations citywide who are dedicated to ensuring swimmable, fishable waters around New York City through natural, sustainable stormwat...

Visit swimmablenyc.org

Key Findings

We analyzed Swimmablenyc.org page load time and found that the first response time was 91 ms and then it took 821 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

swimmablenyc.org performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value4.6 s

70/100

10%

TBT (Total Blocking Time)

Value2,530 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.045

99/100

15%

TTI (Time to Interactive)

Value14.3 s

9/100

10%

Network Requests Diagram

www.swimmablenyc.org

91 ms

minified.js

47 ms

focus-within-polyfill.js

41 ms

polyfill.min.js

80 ms

thunderbolt-commons.fe884ace.bundle.min.js

70 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Swimmablenyc.org, 39% (15 requests) were made to Static.parastorage.com and 32% (12 requests) were made to Sentry-next.wixpress.com. The less responsive or slowest element that took the longest time to load (371 ms) relates to the external source Static.wixstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 385.8 kB (47%)

Content Size

827.6 kB

After Optimization

441.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Swimmablenyc.org main page is 827.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. HTML takes 482.4 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 377.0 kB

  • Original 482.4 kB
  • After minification 480.7 kB
  • After compression 105.4 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 377.0 kB or 78% of the original size.

Image Optimization

-5%

Potential reduce by 4.5 kB

  • Original 84.7 kB
  • After minification 80.2 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. Swimmable NYC images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 4.2 kB

  • Original 260.4 kB
  • After minification 260.4 kB
  • After compression 256.2 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.

Requests Breakdown

Number of requests can be reduced by 10 (45%)

Requests Now

22

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Swimmable 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 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.swimmablenyc.org

www.swimmablenyc.org

91 ms

minified.js

minified.js

47 ms

focus-within-polyfill.js

focus-within-polyfill.js

41 ms

polyfill.min.js

polyfill.min.js

80 ms

thunderbolt-commons.fe884ace.bundle.min.js

thunderbolt-commons.fe884ace.bundle.min.js

70 ms

main.cc1c9ca9.bundle.min.js

main.cc1c9ca9.bundle.min.js

120 ms

main.renderer.1d21f023.bundle.min.js

main.renderer.1d21f023.bundle.min.js

35 ms

lodash.min.js

lodash.min.js

70 ms

react.production.min.js

react.production.min.js

70 ms

react-dom.production.min.js

react-dom.production.min.js

120 ms

siteTags.bundle.min.js

siteTags.bundle.min.js

137 ms

18c26a_6246640d3b1d4a2dba6e95134c4fd95e.png

18c26a_6246640d3b1d4a2dba6e95134c4fd95e.png

79 ms

bundle.min.js

bundle.min.js

74 ms

d7cfab_1d4966f723a54b66954fba1fd8305f42~mv2_d_3718_1200_s_2.png

d7cfab_1d4966f723a54b66954fba1fd8305f42~mv2_d_3718_1200_s_2.png

304 ms

d7cfab_3e69b5a41b664cac962827b43e545699~mv2.jpg

d7cfab_3e69b5a41b664cac962827b43e545699~mv2.jpg

217 ms

a3bef7_82e2774ea3da4b568d550894a34089c8.jpg

a3bef7_82e2774ea3da4b568d550894a34089c8.jpg

294 ms

a3bef7_a7f41d9595894084b7ebc0ea73e36399.jpg

a3bef7_a7f41d9595894084b7ebc0ea73e36399.jpg

371 ms

a3bef7_78e54cedf45c41b1964728689ee76107~mv2_d_2101_3247_s_2.jpg

a3bef7_78e54cedf45c41b1964728689ee76107~mv2_d_2101_3247_s_2.jpg

286 ms

d7cfab_652d9fb9721d4003b4291475d78dc7d4~mv2_d_1200_1200_s_2.png

d7cfab_652d9fb9721d4003b4291475d78dc7d4~mv2_d_1200_1200_s_2.png

234 ms

103 ms

101 ms

99 ms

100 ms

99 ms

96 ms

135 ms

130 ms

129 ms

130 ms

127 ms

124 ms

deprecation-en.v5.html

deprecation-en.v5.html

6 ms

bolt-performance

bolt-performance

29 ms

deprecation-style.v5.css

deprecation-style.v5.css

7 ms

right-arrow.svg

right-arrow.svg

23 ms

WixMadeforDisplay_W_Bd.woff

WixMadeforDisplay_W_Bd.woff

6 ms

WixMadeforText_W_Bd.woff

WixMadeforText_W_Bd.woff

12 ms

WixMadeforText_W_Rg.woff

WixMadeforText_W_Rg.woff

6 ms

Accessibility Review

swimmablenyc.org accessibility score

94

Accessibility Issues

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

Heading elements are not in a sequentially-descending order

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Links do not have a discernible name

Best Practices

swimmablenyc.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

swimmablenyc.org SEO score

99

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 Swimmablenyc.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 Swimmablenyc.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

swimmablenyc.org

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