Report Summary

  • 65

    Performance

    Renders faster than
    79% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 60% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

ngmdb.usgs.gov

National Geologic Map Database

Page Load Speed

592 ms in total

First Response

239 ms

Resources Loaded

241 ms

Page Rendered

112 ms

ngmdb.usgs.gov screenshot

About Website

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

USGS (U.S. Geological Survey) National Geologic Map Database

Visit ngmdb.usgs.gov

Key Findings

We analyzed Ngmdb.usgs.gov page load time and found that the first response time was 239 ms and then it took 353 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

ngmdb.usgs.gov performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0.06

98/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

ngmdb.usgs.gov

239 ms

Our browser made a total of 1 request to load all elements on the main page. We found that all of those requests were addressed to Ngmdb.usgs.gov and no external sources were called. The less responsive or slowest element that took the longest time to load (239 ms) belongs to the original domain Ngmdb.usgs.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 36 B (17%)

Content Size

213 B

After Optimization

177 B

In fact, the total size of Ngmdb.usgs.gov main page is 213 B. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. HTML takes 213 B which makes up the majority of the site volume.

HTML Optimization

-17%

Potential reduce by 36 B

  • Original 213 B
  • After minification 212 B
  • After compression 177 B

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 36 B or 17% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Accessibility Review

ngmdb.usgs.gov accessibility score

85

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

Best Practices

ngmdb.usgs.gov best practices score

67

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

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

ngmdb.usgs.gov SEO score

69

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

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

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