Access news-navigator.labs.loc.gov. Newspaper Navigator | Experiments | Work

Report Summary

About Website

Welcome to news-navigator.labs.loc.gov homepage info - get ready to check News Navigator Labs Loc best content for United States right away, or after learning these important things about news-navigator.labs.loc.gov

Explore the visual and textual content within the Chronicling America digitized newspaper collection in new ways using machine learning!

Visit news-navigator.labs.loc.gov

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

40/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

17/100

25%

SI (Speed Index)

Value3.9 s

82/100

10%

TBT (Total Blocking Time)

Value420 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value0.165

72/100

15%

TTI (Time to Interactive)

Value10.5 s

23/100

10%

news-navigator.labs.loc.gov

123 ms

base.css

100 ms

satelliteLib-6b47f831c184878d7338d4683ecf773a17973bb9.js

34 ms

jquery-1.8.2.js

179 ms

email-decode.min.js

22 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 61% of them (17 requests) were addressed to the original News-navigator.labs.loc.gov, 11% (3 requests) were made to Assets.adobedtm.com and 7% (2 requests) were made to Dpm.demdex.net. The less responsive or slowest element that took the longest time to load (390 ms) relates to the external source Dpm.demdex.net.

Content Size

990.9 kB

After Optimization

777.0 kB

In fact, the total size of News-navigator.labs.loc.gov main page is 990.9 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. 40% of websites need less resources to load. Javascripts take 771.9 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 134.1 kB

Original 156.8 kB
After minification 133.8 kB
After compression 22.7 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 22.9 kB, which is 15% 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 134.1 kB or 86% of the original size.

JavaScript Optimization

-9%

Potential reduce by 68.6 kB

Original 771.9 kB
After minification 771.9 kB
After compression 703.3 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

-18%

Potential reduce by 11.2 kB

Original 62.2 kB
After minification 62.2 kB
After compression 51.1 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. News-navigator.labs.loc.gov needs all CSS files to be minified and compressed as it can save up to 11.2 kB or 18% of the original size.

Requests Now

After Optimization

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of News Navigator Labs Loc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

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

High

Links do not have descriptive text

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

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 News-navigator.labs.loc.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 News-navigator.labs.loc.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

news-navigator.labs.loc.gov

Open Graph data is detected on the main page of News Navigator Labs Loc. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Newspaper Navigator | Experiments | Work | Library of Congress

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)