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lateshow.cbs.com screenshot

Report Summary

  • 8

    Performance

    Renders faster than
    22% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

lateshow.cbs.com

The Late Show With Stephen Colbert on CBS

Page Load Speed

2.6 sec in total

First Response

138 ms

Resources Loaded

1.3 sec

Page Rendered

1.1 sec

lateshow.cbs.com screenshot

About Website

Welcome to lateshow.cbs.com homepage info - get ready to check Late Show CBS best content for United States right away, or after learning these important things about lateshow.cbs.com

Watch full episodes of The Late Show With Stephen Colbert and view video clips and browse photos. Join the conversation and connect with CBS's The Late Show With Stephen Colbert.

Visit lateshow.cbs.com

Key Findings

We analyzed Lateshow.cbs.com page load time and found that the first response time was 138 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

lateshow.cbs.com performance score

8

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value13.5 s

0/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value5,040 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.481

17/100

15%

TTI (Time to Interactive)

Value17.6 s

4/100

10%

Network Requests Diagram

lateshow.cbs.com

138 ms

187 ms

showHome-3e9341f8333d961d6d06.min.css

65 ms

fonts-bb3f3017b98d2ca08d47.min.css

90 ms

core-43dbecd209f30776c4dd.min.js

32 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Lateshow.cbs.com, 41% (7 requests) were made to Wwwimage-tve.cbsstatic.com and 18% (3 requests) were made to Cbs.com. The less responsive or slowest element that took the longest time to load (794 ms) relates to the external source Wwwimage-tve.cbsstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 154.3 kB (17%)

Content Size

921.4 kB

After Optimization

767.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lateshow.cbs.com main page is 921.4 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. CSS take 305.6 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 149.6 kB

  • Original 190.7 kB
  • After minification 160.5 kB
  • After compression 41.1 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 30.2 kB, which is 16% 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 149.6 kB or 78% of the original size.

Image Optimization

-1%

Potential reduce by 4.4 kB

  • Original 296.5 kB
  • After minification 292.1 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. Late Show CBS images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 69 B

  • Original 128.6 kB
  • After minification 128.6 kB
  • After compression 128.6 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 277 B

  • Original 305.6 kB
  • After minification 305.6 kB
  • After compression 305.3 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. Lateshow.cbs.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 6 (50%)

Requests Now

12

After Optimization

6

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Late Show CBS. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

lateshow.cbs.com

lateshow.cbs.com

138 ms

187 ms

showHome-3e9341f8333d961d6d06.min.css

showHome-3e9341f8333d961d6d06.min.css

65 ms

fonts-bb3f3017b98d2ca08d47.min.css

fonts-bb3f3017b98d2ca08d47.min.css

90 ms

core-43dbecd209f30776c4dd.min.js

core-43dbecd209f30776c4dd.min.js

32 ms

showHome-75c6a9cd052096f51b67.min.js

showHome-75c6a9cd052096f51b67.min.js

31 ms

otSDKStub.js

otSDKStub.js

53 ms

optanon-v1.1.0.js

optanon-v1.1.0.js

45 ms

lssc_sp_hero_landscape_0.jpg

lssc_sp_hero_landscape_0.jpg

794 ms

cbs_original_lt_align_alt_1260x396.png

cbs_original_lt_align_alt_1260x396.png

200 ms

ProximaNova-A-Regular.woff

ProximaNova-A-Regular.woff

37 ms

ProximaNova-A-Bold.woff

ProximaNova-A-Bold.woff

38 ms

f3baa938-2fb9-4aa8-a54e-76159b7d8c67.json

f3baa938-2fb9-4aa8-a54e-76159b7d8c67.json

53 ms

shamanNotifier.js

shamanNotifier.js

42 ms

location

location

39 ms

otBannerSdk.js

otBannerSdk.js

34 ms

ProximaNova-A-SemiBold.woff

ProximaNova-A-SemiBold.woff

21 ms

Accessibility Review

lateshow.cbs.com accessibility score

89

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

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

lateshow.cbs.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

Page has valid source maps

SEO Factors

lateshow.cbs.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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lateshow.cbs.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 Lateshow.cbs.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

lateshow.cbs.com

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