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nhd.usgs.gov screenshot

Report Summary

  • 18

    Performance

    Renders faster than
    34% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

nhd.usgs.gov

National Hydrography Dataset | U.S. Geological Survey

Page Load Speed

4.8 sec in total

First Response

786 ms

Resources Loaded

3.5 sec

Page Rendered

512 ms

nhd.usgs.gov screenshot

About Website

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

The National Hydrography Dataset (NHD) represents the water drainage network of the United States with features such as rivers, streams, canals, lakes, ponds, coastline, dams, and streamgages. Note – ...

Visit nhd.usgs.gov

Key Findings

We analyzed Nhd.usgs.gov page load time and found that the first response time was 786 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

nhd.usgs.gov performance score

18

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.9 s

1/100

10%

LCP (Largest Contentful Paint)

Value22.4 s

0/100

25%

SI (Speed Index)

Value10.9 s

6/100

10%

TBT (Total Blocking Time)

Value1,920 ms

8/100

30%

CLS (Cumulative Layout Shift)

Value0.007

100/100

15%

TTI (Time to Interactive)

Value22.1 s

1/100

10%

Network Requests Diagram

nhd.usgs.gov

786 ms

national-hydrography-dataset

532 ms

national-hydrography-dataset

1413 ms

gtm.js

99 ms

core.css

13 ms

Our browser made a total of 146 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Nhd.usgs.gov, 94% (137 requests) were made to Usgs.gov and 2% (3 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Usgs.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 168.4 kB (29%)

Content Size

579.5 kB

After Optimization

411.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nhd.usgs.gov main page is 579.5 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. 70% of websites need less resources to load. Javascripts take 202.9 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 108.5 kB

  • Original 126.5 kB
  • After minification 93.1 kB
  • After compression 18.0 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 33.4 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 108.5 kB or 86% of the original size.

Image Optimization

-40%

Potential reduce by 46.9 kB

  • Original 117.5 kB
  • After minification 70.7 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, Nhd Usgs needs image optimization as it can save up to 46.9 kB or 40% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-4%

Potential reduce by 8.0 kB

  • Original 202.9 kB
  • After minification 202.6 kB
  • After compression 194.8 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

-4%

Potential reduce by 4.9 kB

  • Original 132.6 kB
  • After minification 131.4 kB
  • After compression 127.7 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. Nhd.usgs.gov has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 117 (92%)

Requests Now

127

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 127 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nhd 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 73 to 1 for JavaScripts and from 40 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nhd.usgs.gov

nhd.usgs.gov

786 ms

national-hydrography-dataset

national-hydrography-dataset

532 ms

national-hydrography-dataset

national-hydrography-dataset

1413 ms

gtm.js

gtm.js

99 ms

core.css

core.css

13 ms

controlgroup.css

controlgroup.css

17 ms

checkboxradio.css

checkboxradio.css

17 ms

resizable.css

resizable.css

29 ms

button.css

button.css

28 ms

dialog.css

dialog.css

29 ms

ajax-progress.module.css

ajax-progress.module.css

28 ms

align.module.css

align.module.css

36 ms

autocomplete-loading.module.css

autocomplete-loading.module.css

37 ms

fieldgroup.module.css

fieldgroup.module.css

31 ms

container-inline.module.css

container-inline.module.css

34 ms

clearfix.module.css

clearfix.module.css

37 ms

details.module.css

details.module.css

35 ms

hidden.module.css

hidden.module.css

38 ms

item-list.module.css

item-list.module.css

40 ms

js.module.css

js.module.css

41 ms

nowrap.module.css

nowrap.module.css

39 ms

position-container.module.css

position-container.module.css

40 ms

progress.module.css

progress.module.css

40 ms

reset-appearance.module.css

reset-appearance.module.css

44 ms

resize.module.css

resize.module.css

42 ms

sticky-header.module.css

sticky-header.module.css

42 ms

system-status-counter.css

system-status-counter.css

43 ms

system-status-report-counters.css

system-status-report-counters.css

44 ms

system-status-report-general-info.css

system-status-report-general-info.css

46 ms

tabledrag.module.css

tabledrag.module.css

45 ms

tablesort.module.css

tablesort.module.css

44 ms

tree-child.module.css

tree-child.module.css

46 ms

responsive-table-filter.css

responsive-table-filter.css

48 ms

core.css

core.css

50 ms

tabs.css

tabs.css

49 ms

ckeditor5.dialog.fix.css

ckeditor5.dialog.fix.css

48 ms

theme.css

theme.css

50 ms

addtoany.css

addtoany.css

99 ms

extlink.css

extlink.css

52 ms

all.css

all.css

61 ms

page.js

page.js

52 ms

tex-mml-chtml.js

tex-mml-chtml.js

52 ms

improved_multi_select.css

improved_multi_select.css

51 ms

theme.css

theme.css

48 ms

paragraphs.unpublished.css

paragraphs.unpublished.css

47 ms

styles.css

styles.css

54 ms

jquery.min.js

jquery.min.js

38 ms

once.min.js

once.min.js

68 ms

drupalSettingsLoader.js

drupalSettingsLoader.js

69 ms

drupal.js

drupal.js

69 ms

drupal.init.js

drupal.init.js

68 ms

version-min.js

version-min.js

64 ms

data-min.js

data-min.js

61 ms

disable-selection-min.js

disable-selection-min.js

63 ms

form-min.js

form-min.js

64 ms

jquery-patch-min.js

jquery-patch-min.js

65 ms

scroll-parent-min.js

scroll-parent-min.js

62 ms

unique-id-min.js

unique-id-min.js

104 ms

focusable-min.js

focusable-min.js

61 ms

ie-min.js

ie-min.js

61 ms

keycode-min.js

keycode-min.js

61 ms

plugin-min.js

plugin-min.js

102 ms

safe-active-element-min.js

safe-active-element-min.js

101 ms

safe-blur-min.js

safe-blur-min.js

101 ms

widget-min.js

widget-min.js

101 ms

labels-min.js

labels-min.js

105 ms

controlgroup-min.js

controlgroup-min.js

101 ms

form-reset-mixin-min.js

form-reset-mixin-min.js

101 ms

mouse-min.js

mouse-min.js

101 ms

checkboxradio-min.js

checkboxradio-min.js

101 ms

draggable-min.js

draggable-min.js

103 ms

resizable-min.js

resizable-min.js

103 ms

button-min.js

button-min.js

105 ms

dialog-min.js

dialog-min.js

104 ms

version-min.js

version-min.js

102 ms

keycode-min.js

keycode-min.js

129 ms

safe-active-element-min.js

safe-active-element-min.js

100 ms

unique-id-min.js

unique-id-min.js

102 ms

widget-min.js

widget-min.js

99 ms

tabs-min.js

tabs-min.js

99 ms

index.umd.min.js

index.umd.min.js

94 ms

tua-bsl.umd.min.js

tua-bsl.umd.min.js

78 ms

addtoany.js

addtoany.js

77 ms

extlink.js

extlink.js

78 ms

improved_multi_select.js

improved_multi_select.js

79 ms

config.js

config.js

76 ms

uswds.min.js

uswds.min.js

77 ms

usgs-tables.js

usgs-tables.js

77 ms

usgs-tantalum.js

usgs-tantalum.js

77 ms

usgs-tabs.js

usgs-tabs.js

78 ms

masonry.pkgd.min.js

masonry.pkgd.min.js

79 ms

usgs-masonry.js

usgs-masonry.js

76 ms

dotdotdot.js

dotdotdot.js

78 ms

usgs-truncate.js

usgs-truncate.js

76 ms

slick.min.js

slick.min.js

39 ms

usgs-carousel.js

usgs-carousel.js

39 ms

usgs-transcript.js

usgs-transcript.js

37 ms

mobile-nav.js

mobile-nav.js

74 ms

back-to-top.js

back-to-top.js

71 ms

group-topic-view.js

group-topic-view.js

36 ms

progress.js

progress.js

70 ms

loadjs.min.js

loadjs.min.js

70 ms

debounce.js

debounce.js

71 ms

announce.js

announce.js

71 ms

message.js

message.js

69 ms

ajax.js

ajax.js

67 ms

displace.js

displace.js

68 ms

jquery.tabbable.shim.js

jquery.tabbable.shim.js

131 ms

position.js

position.js

68 ms

dialog.js

dialog.js

65 ms

dialog.position.js

dialog.position.js

64 ms

dialog.jquery-ui.js

dialog.jquery-ui.js

64 ms

ckeditor5.dialog.fix.js

ckeditor5.dialog.fix.js

269 ms

dialog.ajax.js

dialog.ajax.js

63 ms

tltagv.js

tltagv.js

64 ms

PublicSans-Regular.woff

PublicSans-Regular.woff

62 ms

PublicSans-Light.woff

PublicSans-Light.woff

66 ms

PublicSans-SemiBold.woff

PublicSans-SemiBold.woff

64 ms

PublicSans-Bold.woff

PublicSans-Bold.woff

66 ms

Latin-Merriweather-Regular.woff

Latin-Merriweather-Regular.woff

64 ms

Latin-Merriweather-Light.woff

Latin-Merriweather-Light.woff

64 ms

Latin-Merriweather-Bold.woff

Latin-Merriweather-Bold.woff

63 ms

us_flag_small.png

us_flag_small.png

65 ms

icon-dot-gov.svg

icon-dot-gov.svg

63 ms

icon-https.svg

icon-https.svg

65 ms

usgs_logo.png

usgs_logo.png

64 ms

expand_more.svg

expand_more.svg

64 ms

search.png

search.png

65 ms

menu.png

menu.png

65 ms

back-top.png

back-top.png

66 ms

facebook.svg

facebook.svg

63 ms

x-logo-white.png

x-logo-white.png

64 ms

youtube.svg

youtube.svg

31 ms

instagram.svg

instagram.svg

32 ms

rss_feed.svg

rss_feed.svg

31 ms

sm.25.html

sm.25.html

61 ms

eso.BRQnzO8v.js

eso.BRQnzO8v.js

61 ms

PublicSans-Italic.woff

PublicSans-Italic.woff

6 ms

PublicSans-LightItalic.woff

PublicSans-LightItalic.woff

23 ms

PublicSans-SemiBoldItalic.woff

PublicSans-SemiBoldItalic.woff

5 ms

PublicSans-BoldItalic.woff

PublicSans-BoldItalic.woff

6 ms

fa-solid-900.ttf

fa-solid-900.ttf

53 ms

fa-regular-400.ttf

fa-regular-400.ttf

33 ms

Latin-Merriweather-Italic.woff

Latin-Merriweather-Italic.woff

336 ms

Latin-Merriweather-LightItalic.woff

Latin-Merriweather-LightItalic.woff

325 ms

Latin-Merriweather-BoldItalic.woff

Latin-Merriweather-BoldItalic.woff

336 ms

Accessibility Review

nhd.usgs.gov accessibility score

91

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

Best Practices

nhd.usgs.gov best practices score

83

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

nhd.usgs.gov SEO score

98

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

High

Tap targets are not sized appropriately

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 Nhd.usgs.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 Nhd.usgs.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

nhd.usgs.gov

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