Tools & Wizards About Us
nano.cancer.gov screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 99

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

nano.cancer.gov

NSDB - Nanodelivery Systems and Devices Branch - NCI

Page Load Speed

602 ms in total

First Response

75 ms

Resources Loaded

332 ms

Page Rendered

195 ms

nano.cancer.gov screenshot

About Website

Visit nano.cancer.gov now to see the best up-to-date Nano Cancer content for United States and also check out these interesting facts you probably never knew about nano.cancer.gov

Nanotechnology is changing the way we look at cancer. Learn about NSDB's programs dedicated to clinical translation and in vivo understanding of nanotechnology for cancer.

Visit nano.cancer.gov

Key Findings

We analyzed Nano.cancer.gov page load time and found that the first response time was 75 ms and then it took 527 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

nano.cancer.gov performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value3.3 s

91/100

10%

TBT (Total Blocking Time)

Value530 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value0.124

83/100

15%

TTI (Time to Interactive)

Value7.7 s

45/100

10%

Network Requests Diagram

nano.cancer.gov

75 ms

main.css

29 ms

ddm.js

18 ms

wa_cssi_pageload.js

45 ms

rss-feed-icon.gif

69 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 82% of them (36 requests) were addressed to the original Nano.cancer.gov, 9% (4 requests) were made to Static.cancer.gov and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (75 ms) belongs to the original domain Nano.cancer.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 85.3 kB (36%)

Content Size

235.7 kB

After Optimization

150.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nano.cancer.gov main page is 235.7 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 109.6 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 31.6 kB

  • Original 43.0 kB
  • After minification 36.9 kB
  • After compression 11.4 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 6.1 kB, which is 14% 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 31.6 kB or 73% of the original size.

Image Optimization

-5%

Potential reduce by 5.4 kB

  • Original 109.6 kB
  • After minification 104.2 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. Nano Cancer images are well optimized though.

JavaScript Optimization

-47%

Potential reduce by 27.6 kB

  • Original 58.2 kB
  • After minification 53.3 kB
  • After compression 30.6 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 27.6 kB or 47% of the original size.

CSS Optimization

-83%

Potential reduce by 20.7 kB

  • Original 24.8 kB
  • After minification 19.1 kB
  • After compression 4.2 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. Nano.cancer.gov needs all CSS files to be minified and compressed as it can save up to 20.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (51%)

Requests Now

43

After Optimization

21

  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nano 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 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

nano.cancer.gov

nano.cancer.gov

75 ms

main.css

main.css

29 ms

ddm.js

ddm.js

18 ms

wa_cssi_pageload.js

wa_cssi_pageload.js

45 ms

rss-feed-icon.gif

rss-feed-icon.gif

69 ms

ga.js

ga.js

26 ms

background.jpg

background.jpg

25 ms

nci.jpg

nci.jpg

15 ms

nci_shadow.jpg

nci_shadow.jpg

13 ms

logo.png

logo.png

18 ms

go.gif

go.gif

14 ms

nav_learn.gif

nav_learn.gif

19 ms

nav_bg.gif

nav_bg.gif

16 ms

nav_bottom_left.gif

nav_bottom_left.gif

18 ms

nav_collaborate.gif

nav_collaborate.gif

21 ms

nav_bottom_2.gif

nav_bottom_2.gif

21 ms

nav_action.gif

nav_action.gif

59 ms

nav_bottom_3.gif

nav_bottom_3.gif

58 ms

nav_about.gif

nav_about.gif

59 ms

nav_bottom_right.gif

nav_bottom_right.gif

59 ms

news_top.gif

news_top.gif

60 ms

home_rss.gif

home_rss.gif

60 ms

news_bg.gif

news_bg.gif

62 ms

news_bottom.gif

news_bottom.gif

60 ms

home_content_top2.png

home_content_top2.png

60 ms

home_content_bg_left.gif

home_content_bg_left.gif

62 ms

home_content_bg_right.gif

home_content_bg_right.gif

59 ms

june-2014.jpg

june-2014.jpg

63 ms

home_tabs_1.gif

home_tabs_1.gif

62 ms

home_tabs_bg.gif

home_tabs_bg.gif

61 ms

home_icon_1.jpg

home_icon_1.jpg

63 ms

home_icon_5.jpg

home_icon_5.jpg

64 ms

home_icon_2.jpg

home_icon_2.jpg

63 ms

home_icon_3.jpg

home_icon_3.jpg

62 ms

home_content_bottom.gif

home_content_bottom.gif

63 ms

footer-navitems-divider.gif

footer-navitems-divider.gif

60 ms

slide-plus.png

slide-plus.png

64 ms

slide-prev.png

slide-prev.png

62 ms

slide-next.png

slide-next.png

63 ms

wa_cssi_pre.js

wa_cssi_pre.js

19 ms

s_code.js

s_code.js

32 ms

wa_cssi_post.js

wa_cssi_post.js

23 ms

__utm.gif

__utm.gif

26 ms

s43940457708667

s43940457708667

41 ms

Accessibility Review

nano.cancer.gov accessibility score

99

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

nano.cancer.gov best practices score

83

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

Page has valid source maps

SEO Factors

nano.cancer.gov SEO score

100

Search Engine Optimization Advices

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

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nano.cancer.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 Nano.cancer.gov main page’s claimed encoding is . 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

nano.cancer.gov

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