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itis.gov screenshot

Report Summary

  • 69

    Performance

    Renders faster than
    81% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

itis.gov

Integrated Taxonomic Information System

Page Load Speed

1.7 sec in total

First Response

217 ms

Resources Loaded

1.4 sec

Page Rendered

145 ms

itis.gov screenshot

About Website

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

Hosted by the USGS Core Science Analytics and Synthesis. Page designed through the cooperative efforts of interagency ITIS Teams. Point of Contact: itiswebmaster@itis.gov.

Visit itis.gov

Key Findings

We analyzed Itis.gov page load time and found that the first response time was 217 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

itis.gov performance score

69

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

60/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value320 ms

76/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value6.8 s

55/100

10%

Network Requests Diagram

itis.gov

217 ms

www.itis.gov

472 ms

itisstyle.css

109 ms

jquery-1.7.min.js

270 ms

superfish.js

139 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 55% of them (18 requests) were addressed to the original Itis.gov, 15% (5 requests) were made to Google-analytics.com and 12% (4 requests) were made to Usgs.gov. The less responsive or slowest element that took the longest time to load (472 ms) belongs to the original domain Itis.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 193.4 kB (63%)

Content Size

309.1 kB

After Optimization

115.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Itis.gov main page is 309.1 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. 15% of websites need less resources to load. Javascripts take 269.1 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 23.1 kB

  • Original 28.5 kB
  • After minification 21.0 kB
  • After compression 5.4 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. This page needs HTML code to be minified as it can gain 7.5 kB, which is 26% 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 23.1 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 28 B

  • Original 2.6 kB
  • After minification 2.6 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. Itis images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 163.0 kB

  • Original 269.1 kB
  • After minification 263.0 kB
  • After compression 106.1 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 163.0 kB or 61% of the original size.

CSS Optimization

-82%

Potential reduce by 7.2 kB

  • Original 8.9 kB
  • After minification 6.3 kB
  • After compression 1.6 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. Itis.gov needs all CSS files to be minified and compressed as it can save up to 7.2 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (74%)

Requests Now

31

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Itis. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

itis.gov

itis.gov

217 ms

www.itis.gov

www.itis.gov

472 ms

itisstyle.css

itisstyle.css

109 ms

jquery-1.7.min.js

jquery-1.7.min.js

270 ms

superfish.js

superfish.js

139 ms

supersubs.js

supersubs.js

159 ms

jquery.hoverIntent.minified.js

jquery.hoverIntent.minified.js

144 ms

superfish.css

superfish.css

147 ms

superfish-vertical.css

superfish-vertical.css

208 ms

usgs-analytics.js

usgs-analytics.js

130 ms

foresee-trigger.js

foresee-trigger.js

405 ms

Universal-Federated-Analytics-Min.1.0.js

Universal-Federated-Analytics-Min.1.0.js

119 ms

usa-search.js

usa-search.js

82 ms

ga.js

ga.js

44 ms

bg.gif

bg.gif

123 ms

maintoplogo.gif

maintoplogo.gif

198 ms

homebanner.gif

homebanner.gif

85 ms

spacer.gif

spacer.gif

136 ms

leftbar.gif

leftbar.gif

90 ms

feed-icon-14x14.png

feed-icon-14x14.png

179 ms

bar.gif

bar.gif

185 ms

arrows-ffffff.png

arrows-ffffff.png

153 ms

shadow.png

shadow.png

184 ms

__utm.gif

__utm.gif

12 ms

remote.loader.js

remote.loader.js

174 ms

analytics.js

analytics.js

12 ms

iframe_api

iframe_api

57 ms

collect

collect

55 ms

collect

collect

64 ms

collect

collect

54 ms

collect

collect

64 ms

www-widgetapi.js

www-widgetapi.js

21 ms

stats.js

stats.js

80 ms

Accessibility Review

itis.gov accessibility score

92

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

Best Practices

itis.gov 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

itis.gov SEO score

77

Search Engine Optimization Advices

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 Itis.gov 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 Itis.gov 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

itis.gov

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