Report Summary

  • 54

    Performance

    Renders faster than
    72% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

invasivespecies.gov

National Invasive Species Council | U.S. Department of the Interior

Page Load Speed

2.5 sec in total

First Response

76 ms

Resources Loaded

1.5 sec

Page Rendered

927 ms

invasivespecies.gov screenshot

About Website

Visit invasivespecies.gov now to see the best up-to-date Invasive Species content and also check out these interesting facts you probably never knew about invasivespecies.gov

The National Invasive Species Council (NISC) is a council of federal departments and agencies tasked to provide national leadership regarding invasive species.

Visit invasivespecies.gov

Key Findings

We analyzed Invasivespecies.gov page load time and found that the first response time was 76 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

invasivespecies.gov performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value400 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value6.7 s

56/100

10%

Network Requests Diagram

76 ms

Universal-Federated-Analytics-Min.js

119 ms

css_UB0QL9kUq0XkfMvFMxCCeJ4TstPerRANqNDL7WbOSQI.css

40 ms

css_3x0xhfOOD8pTb3AOLJFQTMJY5uDy_S2FfnXzf2ZCb5Q.css

73 ms

css

303 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Invasivespecies.gov, 9% (4 requests) were made to Google-analytics.com and 6% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (575 ms) relates to the external source Google-analytics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 179.9 kB (11%)

Content Size

1.6 MB

After Optimization

1.4 MB

In fact, the total size of Invasivespecies.gov main page is 1.6 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 32.5 kB

  • Original 41.4 kB
  • After minification 39.8 kB
  • After compression 8.9 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 32.5 kB or 79% of the original size.

Image Optimization

-9%

Potential reduce by 107.1 kB

  • Original 1.2 MB
  • After minification 1.1 MB

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. Invasive Species images are well optimized though.

JavaScript Optimization

-20%

Potential reduce by 40.1 kB

  • Original 204.5 kB
  • After minification 203.9 kB
  • After compression 164.4 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 40.1 kB or 20% of the original size.

CSS Optimization

-0%

Potential reduce by 135 B

  • Original 85.4 kB
  • After minification 85.4 kB
  • After compression 85.3 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. Invasivespecies.gov has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 13 (36%)

Requests Now

36

After Optimization

23

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Invasive Species. 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 from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

invasivespecies.gov accessibility score

100

Accessibility Issues

Best Practices

invasivespecies.gov best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

invasivespecies.gov SEO score

93

Search Engine Optimization Advices

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

    EN

  • Encoding

    UTF-8

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

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