Report Summary

  • 73

    Performance

    Renders faster than
    83% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 0

    Best Practices

  • 62

    SEO

    Google-friendlier than
    22% of websites

historydetroit.com

Detroit History

Page Load Speed

956 ms in total

First Response

105 ms

Resources Loaded

765 ms

Page Rendered

86 ms

historydetroit.com screenshot

About Website

Visit historydetroit.com now to see the best up-to-date History Detroit content and also check out these interesting facts you probably never knew about historydetroit.com

A work in progress, this site contains information about various eras in the history of Detroit, Michigan

Visit historydetroit.com

Key Findings

We analyzed Historydetroit.com page load time and found that the first response time was 105 ms and then it took 851 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

historydetroit.com performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

92/100

25%

SI (Speed Index)

Value2.6 s

97/100

10%

TBT (Total Blocking Time)

Value750 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.8 s

45/100

10%

Network Requests Diagram

historydetroit.com

105 ms

detroit_style.css

142 ms

jquery.js

174 ms

popup.js

143 ms

plusone.js

25 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 27% of them (7 requests) were addressed to the original Historydetroit.com, 23% (6 requests) were made to Apis.google.com and 15% (4 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (335 ms) relates to the external source Developers.google.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 32.2 kB (13%)

Content Size

241.4 kB

After Optimization

209.2 kB

In fact, the total size of Historydetroit.com main page is 241.4 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. 45% of websites need less resources to load. Javascripts take 203.6 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 26.4 kB

  • Original 35.0 kB
  • After minification 34.0 kB
  • After compression 8.6 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. 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 26.4 kB or 75% of the original size.

Image Optimization

-25%

Potential reduce by 155 B

  • Original 613 B
  • After minification 458 B

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, History Detroit needs image optimization as it can save up to 155 B or 25% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-2%

Potential reduce by 5.0 kB

  • Original 203.6 kB
  • After minification 203.6 kB
  • After compression 198.7 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

-31%

Potential reduce by 657 B

  • Original 2.1 kB
  • After minification 2.1 kB
  • After compression 1.5 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. Historydetroit.com needs all CSS files to be minified and compressed as it can save up to 657 B or 31% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (55%)

Requests Now

22

After Optimization

10

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of History Detroit. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

historydetroit.com accessibility score

84

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.

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

<frame> or <iframe> elements do not have a title

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

SEO Factors

historydetroit.com SEO score

62

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

Links do not have descriptive text

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 Historydetroit.com 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 Historydetroit.com 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 History Detroit. 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: