Tools & Wizards About Us

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

o365.com

Microsoft 365 - Subscription for Office Apps | Microsoft 365

Page Load Speed

533 ms in total

First Response

37 ms

Resources Loaded

427 ms

Page Rendered

69 ms

About Website

Welcome to o365.com homepage info - get ready to check O 365 best content right away, or after learning these important things about o365.com

Microsoft 365 subscriptions include a set of familiar Office apps, intelligent cloud services, and world-class security in one place. Find the right plan for you.

Visit o365.com

Key Findings

We analyzed O365.com page load time and found that the first response time was 37 ms and then it took 496 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

o365.com performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

14/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value7.2 s

29/100

10%

TBT (Total Blocking Time)

Value2,160 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value19.0 s

3/100

10%

Network Requests Diagram

microsoft-365

37 ms

mwf-west-european-default.min.css

181 ms

51-40faf7

29 ms

override.css

101 ms

jquery-1.9.1.min.js

19 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original O365.com, 25% (4 requests) were made to Microsoft.com and 13% (2 requests) were made to Assets.onestore.ms. The less responsive or slowest element that took the longest time to load (181 ms) relates to the external source Assets.onestore.ms.

Page Optimization Overview & Recommendations

Page size can be reduced by 601.6 kB (84%)

Content Size

716.4 kB

After Optimization

114.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of O365.com main page is 716.4 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. 25% of websites need less resources to load. CSS take 563.9 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 96.6 kB

  • Original 106.6 kB
  • After minification 66.3 kB
  • After compression 10.0 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 40.2 kB, which is 38% 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 96.6 kB or 91% of the original size.

Image Optimization

-12%

Potential reduce by 493 B

  • Original 4.1 kB
  • After minification 3.6 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, O 365 needs image optimization as it can save up to 493 B or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-21%

Potential reduce by 8.6 kB

  • Original 42.0 kB
  • After minification 42.0 kB
  • After compression 33.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 8.6 kB or 21% of the original size.

CSS Optimization

-88%

Potential reduce by 495.9 kB

  • Original 563.9 kB
  • After minification 563.5 kB
  • After compression 67.9 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. O365.com needs all CSS files to be minified and compressed as it can save up to 495.9 kB or 88% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of O 365. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

o365.com accessibility score

90

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 have valid values

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

Some elements have a [tabindex] value greater than 0

Best Practices

o365.com best practices score

75

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

o365.com SEO score

86

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise O365.com 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 O365.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 O 365. 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: