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Report Summary

  • 79

    Performance

    Renders faster than
    86% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 46

    SEO

    Google-friendlier than
    18% of websites

reefbase.org

Reefbase.org

Page Load Speed

1.4 sec in total

First Response

156 ms

Resources Loaded

1.1 sec

Page Rendered

152 ms

reefbase.org screenshot

About Website

Welcome to reefbase.org homepage info - get ready to check Reefbase best content for United States right away, or after learning these important things about reefbase.org

ReefBase provides information management services for the collection, storage, analysis, distribution, and application of coral reef data and information. We support conservation and management of cor...

Visit reefbase.org

Key Findings

We analyzed Reefbase.org page load time and found that the first response time was 156 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

reefbase.org performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

88/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value2.0 s

99/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

reefbase.org

156 ms

main.aspx

213 ms

StyleSheet.css

322 ms

WebResource.axd

135 ms

WebResource.axd

157 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 95% of them (36 requests) were addressed to the original Reefbase.org, 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (529 ms) belongs to the original domain Reefbase.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 218.6 kB (81%)

Content Size

268.8 kB

After Optimization

50.2 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Reefbase.org main page is 268.8 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. 20% of websites need less resources to load. HTML takes 122.5 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 108.0 kB

  • Original 122.5 kB
  • After minification 114.7 kB
  • After compression 14.6 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 108.0 kB or 88% of the original size.

JavaScript Optimization

-69%

Potential reduce by 63.8 kB

  • Original 92.8 kB
  • After minification 68.5 kB
  • After compression 28.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 63.8 kB or 69% of the original size.

CSS Optimization

-88%

Potential reduce by 46.9 kB

  • Original 53.5 kB
  • After minification 37.9 kB
  • After compression 6.7 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. Reefbase.org needs all CSS files to be minified and compressed as it can save up to 46.9 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (44%)

Requests Now

36

After Optimization

20

  • Images
  • JavaScript
  • CSS

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Reefbase. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

reefbase.org

reefbase.org

156 ms

main.aspx

main.aspx

213 ms

StyleSheet.css

StyleSheet.css

322 ms

WebResource.axd

WebResource.axd

135 ms

WebResource.axd

WebResource.axd

157 ms

WebResource.axd

WebResource.axd

137 ms

toptext.gif

toptext.gif

70 ms

header_01.gif

header_01.gif

333 ms

WebResource.axd

WebResource.axd

76 ms

WebResource.axd

WebResource.axd

84 ms

WebResource.axd

WebResource.axd

136 ms

WebResource.axd

WebResource.axd

146 ms

save1.gif

save1.gif

149 ms

print.gif

print.gif

150 ms

email.gif

email.gif

165 ms

favourite.gif

favourite.gif

203 ms

comment.gif

comment.gif

218 ms

rss.gif

rss.gif

224 ms

intro_title.gif

intro_title.gif

297 ms

intro_global_database.gif

intro_global_database.gif

247 ms

intro_gis_and_maps.gif

intro_gis_and_maps.gif

269 ms

intro_publications.gif

intro_publications.gif

289 ms

intro_photos.gif

intro_photos.gif

298 ms

intro_projects_and_partners.gif

intro_projects_and_partners.gif

329 ms

intro_contacts.gif

intro_contacts.gif

338 ms

mainlogo1.gif

mainlogo1.gif

371 ms

mainlogo2.gif

mainlogo2.gif

372 ms

sidebar.gif

sidebar.gif

529 ms

footerlogo.gif

footerlogo.gif

408 ms

footerlinebreak.gif

footerlinebreak.gif

409 ms

headertop.gif

headertop.gif

382 ms

menubar.gif

menubar.gif

422 ms

toolbarsearch.gif

toolbarsearch.gif

425 ms

toolbarsitemap.gif

toolbarsitemap.gif

448 ms

toolbartool.gif

toolbartool.gif

468 ms

sidebaritem.gif

sidebaritem.gif

467 ms

ga.js

ga.js

5 ms

__utm.gif

__utm.gif

12 ms

Accessibility Review

reefbase.org accessibility score

61

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

reefbase.org best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

reefbase.org SEO score

46

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

High

Image elements do not have [alt] attributes

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

reefbase.org

Open Graph description is not detected on the main page of Reefbase. 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: