Tools & Wizards About Us
xfinity.com screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 43% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

xfinity.com

Internet, TV, Phone, Smart Home and Security - Xfinity by Comcast

Page Load Speed

63.5 sec in total

First Response

1.1 sec

Resources Loaded

49.5 sec

Page Rendered

12.9 sec

xfinity.com screenshot

About Website

Visit xfinity.com now to see the best up-to-date Xfinity content for United States and also check out these interesting facts you probably never knew about xfinity.com

Save on Xfinity Digital Cable TV, High Speed Internet and Home Phone Services. Enjoy entertainment your way with great deals on Xfinity by Comcast.

Visit xfinity.com

Key Findings

We analyzed Xfinity.com page load time and found that the first response time was 1.1 sec and then it took 62.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

xfinity.com performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value13.4 s

0/100

25%

SI (Speed Index)

Value16.9 s

0/100

10%

TBT (Total Blocking Time)

Value18,930 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value35.1 s

0/100

10%

Network Requests Diagram

www.xfinity.com

1090 ms

lodash-slim.min.js

498 ms

tracking-aws.min.js

792 ms

dtm.bundle.js

1486 ms

satelliteLib-773f1d685076ba02ef9dd20f568cce9a6f1991dd.js

1469 ms

Our browser made a total of 86 requests to load all elements on the main page. We found that 10% of them (9 requests) were addressed to the original Xfinity.com, 20% (17 requests) were made to Assets.adobedtm.com and 16% (14 requests) were made to Cdn.comcast.com. The less responsive or slowest element that took the longest time to load (13.6 sec) relates to the external source Comcast.demdex.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.7 MB (52%)

Content Size

3.3 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Xfinity.com main page is 3.3 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 101.1 kB

  • Original 118.0 kB
  • After minification 84.0 kB
  • After compression 16.9 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 34.0 kB, which is 29% 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 101.1 kB or 86% of the original size.

Image Optimization

-2%

Potential reduce by 21.5 kB

  • Original 1.2 MB
  • After minification 1.1 MB

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. Xfinity images are well optimized though.

JavaScript Optimization

-78%

Potential reduce by 1.3 MB

  • Original 1.7 MB
  • After minification 1.6 MB
  • After compression 366.2 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 1.3 MB or 78% of the original size.

CSS Optimization

-86%

Potential reduce by 299.9 kB

  • Original 350.1 kB
  • After minification 220.0 kB
  • After compression 50.2 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. Xfinity.com needs all CSS files to be minified and compressed as it can save up to 299.9 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (63%)

Requests Now

76

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Xfinity. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.xfinity.com

www.xfinity.com

1090 ms

lodash-slim.min.js

lodash-slim.min.js

498 ms

tracking-aws.min.js

tracking-aws.min.js

792 ms

dtm.bundle.js

dtm.bundle.js

1486 ms

satelliteLib-773f1d685076ba02ef9dd20f568cce9a6f1991dd.js

satelliteLib-773f1d685076ba02ef9dd20f568cce9a6f1991dd.js

1469 ms

all.bundle.css

all.bundle.css

3532 ms

gnavstyle.css

gnavstyle.css

2582 ms

icons.ashx

icons.ashx

2743 ms

manifest.bundle.js

manifest.bundle.js

4626 ms

vendor-libraries.bundle.js

vendor-libraries.bundle.js

4657 ms

vendor-react.bundle.js

vendor-react.bundle.js

4657 ms

xfinity-learn.bundle.js

xfinity-learn.bundle.js

4656 ms

tracking-jquery-shim.min.js

tracking-jquery-shim.min.js

533 ms

id

id

5879 ms

satellite-599fa0ae64746d352400402d.js

satellite-599fa0ae64746d352400402d.js

2254 ms

id

id

5205 ms

id

id

4690 ms

HBO%20and%20VISA%20logos.svg

HBO%20and%20VISA%20logos.svg

3300 ms

RedZone-Logo-Desktop-and-Mobile.png

RedZone-Logo-Desktop-and-Mobile.png

3736 ms

RedZone%20Module%20Image%20Desktop.jpg

RedZone%20Module%20Image%20Desktop.jpg

4057 ms

json

json

6298 ms

Mobile-Image.jpg

Mobile-Image.jpg

2487 ms

Home-Image%20(1).jpg

Home-Image%20(1).jpg

3057 ms

xfinitysans-lgt-webfont_woff.woff

xfinitysans-lgt-webfont_woff.woff

1453 ms

XfinityStandard-Bold.woff

XfinityStandard-Bold.woff

2214 ms

XfinityStandard-Medium.woff

XfinityStandard-Medium.woff

3877 ms

XfinityStandard-Regular.woff

XfinityStandard-Regular.woff

6579 ms

XfinityStandard-Light.woff

XfinityStandard-Light.woff

6437 ms

XfinityStandard-ExtraLight.woff

XfinityStandard-ExtraLight.woff

6579 ms

XfinityStandard-Thin.woff

XfinityStandard-Thin.woff

6599 ms

logo-sprite.svg

logo-sprite.svg

4399 ms

event

event

13608 ms

df-icons.svg

df-icons.svg

1198 ms

notifications

notifications

3342 ms

gnavscript.js

gnavscript.js

1896 ms

Promo_Tile_Secondary_Internet.jpg

Promo_Tile_Secondary_Internet.jpg

316 ms

Promo_Tile_Secondary_Double_Play.jpg

Promo_Tile_Secondary_Double_Play.jpg

314 ms

Promo_Tile_Secondary_Triple_Play.jpg

Promo_Tile_Secondary_Triple_Play.jpg

412 ms

promo_secondary_1.jpg

promo_secondary_1.jpg

315 ms

promo_secondary_2_CL.jpg

promo_secondary_2_CL.jpg

569 ms

promo_secondary_3_X1.jpg

promo_secondary_3_X1.jpg

568 ms

satellite-58347fc764746d5576002863.js

satellite-58347fc764746d5576002863.js

1337 ms

satellite-57dff61f64746d4d3e013978.js

satellite-57dff61f64746d4d3e013978.js

1257 ms

satellite-5784f5c764746d24f80015ae.js

satellite-5784f5c764746d24f80015ae.js

1256 ms

satellite-57f3beff64746d082c006ad6.js

satellite-57f3beff64746d082c006ad6.js

1471 ms

satellite-57f3beff64746d082c006ad5.html

satellite-57f3beff64746d082c006ad5.html

1397 ms

satellite-5922f25764746d39c6003a1e.js

satellite-5922f25764746d39c6003a1e.js

2075 ms

satellite-5922f25764746d39c6003a1f.js

satellite-5922f25764746d39c6003a1f.js

2022 ms

satellite-594be81d64746d0b95001469.js

satellite-594be81d64746d0b95001469.js

2022 ms

satellite-5966458964746d6e6500a327.js

satellite-5966458964746d6e6500a327.js

1801 ms

satellite-596e26a664746d32990242fc.js

satellite-596e26a664746d32990242fc.js

2680 ms

satellite-5809265864746d4927006e36.js

satellite-5809265864746d4927006e36.js

2679 ms

s-code-contents-11c8f38a44853a1fa459e08fd609da47c7ce7efd.js

s-code-contents-11c8f38a44853a1fa459e08fd609da47c7ce7efd.js

2678 ms

conversion.js

conversion.js

3514 ms

inqChatLaunch312.js

inqChatLaunch312.js

5167 ms

22daf390f3d99f34f5d9b5aff6a4b89fd5ca6412.js

22daf390f3d99f34f5d9b5aff6a4b89fd5ca6412.js

5241 ms

wrapper.js

wrapper.js

4229 ms

bat.js

bat.js

4135 ms

cartindicator

cartindicator

2121 ms

activityi;src=4053494;type=comca517;cat=xfini00h;ord=8241634541191.161

activityi;src=4053494;type=comca517;cat=xfini00h;ord=8241634541191.161

4109 ms

fbevents.js

fbevents.js

4184 ms

surveys.js

surveys.js

4633 ms

tc.min.js

tc.min.js

3936 ms

lb

lb

4958 ms

channel.js

channel.js

3794 ms

3536 ms

inqChat.html

inqChat.html

1158 ms

1300

1300

2732 ms

idr.js

idr.js

3287 ms

1576063789359472

1576063789359472

1180 ms

serve

serve

3374 ms

2641 ms

2497 ms

3300 ms

site_312_default.js

site_312_default.js

2383 ms

ibs:dpid=22053&dpuuid=ecb16b32fa254a87a91ca9f670f11d04

ibs:dpid=22053&dpuuid=ecb16b32fa254a87a91ca9f670f11d04

1119 ms

2244 ms

ca.html

ca.html

2276 ms

tcFramework.min.js

tcFramework.min.js

238 ms

postToServer.htm

postToServer.htm

436 ms

361576.gif

361576.gif

82 ms

postToServer.js

postToServer.js

150 ms

satellite-57dabd4464746d192c010983.js

satellite-57dabd4464746d192c010983.js

1261 ms

satellite-580fe8b364746d7de000adbc.js

satellite-580fe8b364746d7de000adbc.js

348 ms

satellite-59a583c164746d7ae40061e0.js

satellite-59a583c164746d7ae40061e0.js

347 ms

iFrame.html

iFrame.html

280 ms

Accessibility Review

xfinity.com accessibility score

76

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 match their roles

High

ARIA IDs 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

Buttons do not have an accessible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

High

Heading elements are not in a sequentially-descending order

Best Practices

xfinity.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

xfinity.com SEO score

77

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

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 Xfinity.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 Xfinity.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

xfinity.com

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