Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 72

    SEO

    Google-friendlier than
    31% of websites

docs.rackspace.com

Rackspace Technology Documentation

Page Load Speed

1.9 sec in total

First Response

156 ms

Resources Loaded

1.3 sec

Page Rendered

506 ms

docs.rackspace.com screenshot

About Website

Welcome to docs.rackspace.com homepage info - get ready to check Docs Rackspace best content for United States right away, or after learning these important things about docs.rackspace.com

Visit docs.rackspace.com

Key Findings

We analyzed Docs.rackspace.com page load time and found that the first response time was 156 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

docs.rackspace.com performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value5.3 s

22/100

25%

SI (Speed Index)

Value5.4 s

55/100

10%

TBT (Total Blocking Time)

Value920 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.116

85/100

15%

TTI (Time to Interactive)

Value10.9 s

21/100

10%

Network Requests Diagram

docs.rackspace.com

156 ms

bootstrap.min.css

146 ms

jquery-1.11.0.min.js

7 ms

bootstrap.min.js

78 ms

landing-mine.css

62 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 52% of them (28 requests) were addressed to the original Docs.rackspace.com, 15% (8 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (210 ms) belongs to the original domain Docs.rackspace.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.3 MB (71%)

Content Size

1.8 MB

After Optimization

542.6 kB

In fact, the total size of Docs.rackspace.com main page is 1.8 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 134.5 kB

  • Original 169.6 kB
  • After minification 147.4 kB
  • After compression 35.0 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 22.2 kB, which is 13% 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 134.5 kB or 79% of the original size.

Image Optimization

-0%

Potential reduce by 399 B

  • Original 237.6 kB
  • After minification 237.2 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. Docs Rackspace images are well optimized though.

JavaScript Optimization

-81%

Potential reduce by 1.0 MB

  • Original 1.3 MB
  • After minification 862.2 kB
  • After compression 243.6 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 1.0 MB or 81% of the original size.

CSS Optimization

-83%

Potential reduce by 131.7 kB

  • Original 158.5 kB
  • After minification 148.7 kB
  • After compression 26.8 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. Docs.rackspace.com needs all CSS files to be minified and compressed as it can save up to 131.7 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (47%)

Requests Now

43

After Optimization

23

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Docs Rackspace. 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 from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

docs.rackspace.com accessibility score

74

Accessibility Issues

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

Buttons do not have an accessible name

High

Document doesn't have a <title> element

High

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

High

Image elements do not have [alt] attributes

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

Heading elements are not in a sequentially-descending order

Best Practices

docs.rackspace.com 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

Missing source maps for large first-party JavaScript

SEO Factors

docs.rackspace.com SEO score

72

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

Document doesn't have a <title> element

High

Image elements do not have [alt] attributes

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

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Docs.rackspace.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 Docs.rackspace.com main page’s claimed encoding is . 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

Open Graph description is not detected on the main page of Docs Rackspace. 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: