Access gis.cancer.gov. GIS Portal for Cancer Research

Report Summary

About Website

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

This website provides resources for interactive mapping, exploring, and downloading, geographically based cancer related information.

Visit gis.cancer.gov

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value2.1 s

96/100

25%

SI (Speed Index)

Value1.9 s

100/100

10%

TBT (Total Blocking Time)

Value200 ms

90/100

30%

CLS (Cumulative Layout Shift)

Value0.31

38/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

gis.cancer.gov

35 ms

bootstrap.min.css

28 ms

sm-core-css.min.css

16 ms

sm-clean.min.css

26 ms

cascadeMapstory.css

27 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 78% of them (25 requests) were addressed to the original Gis.cancer.gov, 13% (4 requests) were made to Static.cancer.gov and 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (105 ms) relates to the external source Googletagmanager.com.

Content Size

489.6 kB

After Optimization

431.2 kB

In fact, the total size of Gis.cancer.gov main page is 489.6 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. Images take 252.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 26.0 kB

Original 33.7 kB
After minification 24.8 kB
After compression 7.7 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 8.9 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 26.0 kB or 77% of the original size.

Image Optimization

-0%

Potential reduce by 80 B

Original 252.6 kB
After minification 252.5 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. GIS Cancer images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 22.7 kB

Original 109.6 kB
After minification 106.6 kB
After compression 86.9 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 22.7 kB or 21% of the original size.

CSS Optimization

-10%

Potential reduce by 9.7 kB

Original 93.8 kB
After minification 93.8 kB
After compression 84.1 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. Gis.cancer.gov has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of GIS Cancer. 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 8 to 1 for CSS and as a result speed up the page load time.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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/).

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 Gis.cancer.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 Gis.cancer.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

gis.cancer.gov

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

Report Summary

Performance

Accessibility

Best Practices

SEO

GIS Portal for Cancer Research

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)