Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

cresli.org

Coastal Research and Education Society of Long Island

Page Load Speed

2.4 sec in total

First Response

263 ms

Resources Loaded

1.4 sec

Page Rendered

727 ms

cresli.org screenshot

About Website

Visit cresli.org now to see the best up-to-date Cresli content and also check out these interesting facts you probably never knew about cresli.org

CRESLI's programs foster stewardship and understanding of NY's coastal ecosystems, marine mammal and sea turtles.

Visit cresli.org

Key Findings

We analyzed Cresli.org page load time and found that the first response time was 263 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

cresli.org performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value51.9 s

0/100

25%

SI (Speed Index)

Value24.3 s

0/100

10%

TBT (Total Blocking Time)

Value1,640 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.38

27/100

15%

TTI (Time to Interactive)

Value64.4 s

0/100

10%

Network Requests Diagram

cresli.org

263 ms

buttons.js

107 ms

copyright.js

389 ms

show_ads.js

4 ms

async-buttons.js

3 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 20% of them (12 requests) were addressed to the original Cresli.org, 8% (5 requests) were made to Youtube.com and 7% (4 requests) were made to W.sharethis.com. The less responsive or slowest element that took the longest time to load (590 ms) belongs to the original domain Cresli.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 975.7 kB (47%)

Content Size

2.1 MB

After Optimization

1.1 MB

In fact, the total size of Cresli.org main page is 2.1 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. 70% of websites need less resources to load. Javascripts take 837.9 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 66.9 kB

  • Original 79.5 kB
  • After minification 65.8 kB
  • After compression 12.7 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 13.8 kB, which is 17% 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 66.9 kB or 84% of the original size.

Image Optimization

-1%

Potential reduce by 5.4 kB

  • Original 756.9 kB
  • After minification 751.5 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. Cresli images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 561.8 kB

  • Original 837.9 kB
  • After minification 837.4 kB
  • After compression 276.1 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 561.8 kB or 67% of the original size.

CSS Optimization

-84%

Potential reduce by 341.6 kB

  • Original 407.6 kB
  • After minification 407.3 kB
  • After compression 65.9 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. Cresli.org needs all CSS files to be minified and compressed as it can save up to 341.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 26 (49%)

Requests Now

53

After Optimization

27

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cresli. 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 as a result speed up the page load time.

Accessibility Review

cresli.org accessibility score

76

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

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

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

<frame> or <iframe> elements do not have a title

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

cresli.org best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

cresli.org SEO score

83

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cresli.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Cresli.org main page’s claimed encoding is iso-8859-1. 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 description is not detected on the main page of Cresli. 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: