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Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

deltas.usgs.gov

Delta Research And Global Observation Network (DRAGON)

Page Load Speed

1.5 sec in total

First Response

283 ms

Resources Loaded

1 sec

Page Rendered

232 ms

deltas.usgs.gov screenshot

About Website

Welcome to deltas.usgs.gov homepage info - get ready to check Delta S Usgs best content for United States right away, or after learning these important things about deltas.usgs.gov

Visit deltas.usgs.gov

Key Findings

We analyzed Deltas.usgs.gov page load time and found that the first response time was 283 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

deltas.usgs.gov performance score

0

Network Requests Diagram

deltas.usgs.gov

283 ms

common.css

96 ms

dragon.css

176 ms

ddsmoothmenu.css

186 ms

ddsmoothmenu-v.css

196 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 43% of them (17 requests) were addressed to the original Deltas.usgs.gov, 20% (8 requests) were made to Usgs.gov and 13% (5 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (444 ms) belongs to the original domain Deltas.usgs.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 245.4 kB (35%)

Content Size

703.8 kB

After Optimization

458.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Deltas.usgs.gov main page is 703.8 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. 25% of websites need less resources to load. Images take 411.8 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 22.3 kB

  • Original 28.9 kB
  • After minification 22.7 kB
  • After compression 6.6 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 6.2 kB, which is 21% 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 22.3 kB or 77% of the original size.

Image Optimization

-16%

Potential reduce by 65.6 kB

  • Original 411.8 kB
  • After minification 346.2 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. Obviously, Delta S Usgs needs image optimization as it can save up to 65.6 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-58%

Potential reduce by 143.6 kB

  • Original 246.2 kB
  • After minification 226.3 kB
  • After compression 102.6 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 143.6 kB or 58% of the original size.

CSS Optimization

-83%

Potential reduce by 13.9 kB

  • Original 16.8 kB
  • After minification 9.8 kB
  • After compression 2.9 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. Deltas.usgs.gov needs all CSS files to be minified and compressed as it can save up to 13.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (58%)

Requests Now

38

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Delta S Usgs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

deltas.usgs.gov

deltas.usgs.gov

283 ms

common.css

common.css

96 ms

dragon.css

dragon.css

176 ms

ddsmoothmenu.css

ddsmoothmenu.css

186 ms

ddsmoothmenu-v.css

ddsmoothmenu-v.css

196 ms

jquery.min.js

jquery.min.js

287 ms

ddsmoothmenu.js

ddsmoothmenu.js

210 ms

swfobject.js

swfobject.js

211 ms

usgs-analytics.js

usgs-analytics.js

163 ms

brand

brand

19 ms

wz_tooltip.js

wz_tooltip.js

376 ms

brand

brand

30 ms

ga.js

ga.js

23 ms

foresee-trigger.js

foresee-trigger.js

132 ms

Universal-Federated-Analytics-Min.1.0.js

Universal-Federated-Analytics-Min.1.0.js

147 ms

usa-search.js

usa-search.js

128 ms

get_flash_player.gif

get_flash_player.gif

65 ms

deltaBannerClear2.gif

deltaBannerClear2.gif

346 ms

listserv_subscribe.gif

listserv_subscribe.gif

186 ms

Mekong.jpg

Mekong.jpg

432 ms

dragon.jpg

dragon.jpg

444 ms

getReader.gif

getReader.gif

136 ms

dragonFoot_Copy.jpg

dragonFoot_Copy.jpg

197 ms

header_graphic_usgsIdentifier_white.jpg

header_graphic_usgsIdentifier_white.jpg

118 ms

footer_graphic_takePride.jpg

footer_graphic_takePride.jpg

117 ms

footer_graphic_usagov.jpg

footer_graphic_usagov.jpg

118 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

105 ms

__utm.gif

__utm.gif

57 ms

DeltaBack2.jpg

DeltaBack2.jpg

384 ms

rightBack4.jpg

rightBack4.jpg

318 ms

right.gif

right.gif

211 ms

remote.loader.js

remote.loader.js

182 ms

analytics.js

analytics.js

10 ms

iframe_api

iframe_api

38 ms

collect

collect

29 ms

collect

collect

63 ms

collect

collect

25 ms

collect

collect

56 ms

www-widgetapi.js

www-widgetapi.js

16 ms

stats.js

stats.js

87 ms

SEO Factors

deltas.usgs.gov SEO score

0

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 Deltas.usgs.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 Deltas.usgs.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

deltas.usgs.gov

Open Graph description is not detected on the main page of Delta S Usgs. 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: