Tools & Wizards About Us

Report Summary

  • 54

    Performance

    Renders faster than
    71% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

itis.gov

Integrated Taxonomic Information System

Page Load Speed

2.2 sec in total

First Response

394 ms

Resources Loaded

1.8 sec

Page Rendered

93 ms

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 394 ms and then it took 1.8 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

itis.gov performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

60/100

25%

SI (Speed Index)

Value3.2 s

91/100

10%

TBT (Total Blocking Time)

Value1,150 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value9.0 s

34/100

10%

Network Requests Diagram

itis.gov

394 ms

itisstyle.css

153 ms

jquery-3.5.1.min.js

441 ms

jquery-migrate-3.3.2.min.js

224 ms

superfish-2013.js

223 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 53% of them (16 requests) were addressed to the original Itis.gov, 20% (6 requests) were made to Google-analytics.com and 17% (5 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (543 ms) belongs to the original domain Itis.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 36.0 kB (11%)

Content Size

338.8 kB

After Optimization

302.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Itis.gov main page is 338.8 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. 60% of websites need less resources to load. Images take 190.0 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 22.6 kB

  • Original 28.0 kB
  • After minification 20.2 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 7.8 kB, which is 28% 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 22.6 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 2.9 kB

  • Original 190.0 kB
  • After minification 187.2 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. Itis images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.1 kB

  • Original 109.2 kB
  • After minification 109.2 kB
  • After compression 108.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-81%

Potential reduce by 9.4 kB

  • Original 11.6 kB
  • After minification 7.9 kB
  • After compression 2.2 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 9.4 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (45%)

Requests Now

29

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 29 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

Accessibility Review

itis.gov accessibility score

100

Accessibility Issues

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

69

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Page is blocked from indexing

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • 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 it matches the claimed language. 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

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: