Access captivology.com. Captivology: The Science of Capturing People's Attention: Parr, Ben: 9780062324191: Amazon.com: ...

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value9.6 s

11/100

10%

TBT (Total Blocking Time)

Value1,090 ms

24/100

30%

CLS (Cumulative Layout Shift)

Value0.076

95/100

15%

TTI (Time to Interactive)

Value17.4 s

4/100

10%

captivology.com

190 ms

captivology

23 ms

ref=tmm_hrd_title_0

5 ms

ref=tmm_hrd_title_0

86 ms

logo._TTD_.png

18 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that 14% of them (1 request) were addressed to the original Captivology.com, 43% (3 requests) were made to Images-na.ssl-images-amazon.com and 29% (2 requests) were made to Amazon.com. The less responsive or slowest element that took the longest time to load (190 ms) belongs to the original domain Captivology.com.

Content Size

45.0 kB

After Optimization

43.5 kB

In fact, the total size of Captivology.com main page is 45.0 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 42.5 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 1.5 kB

Original 2.4 kB
After minification 1.9 kB
After compression 937 B

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 563 B, which is 23% 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 1.5 kB or 61% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

Original 42.5 kB
After minification 42.5 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. Captivology images are well optimized though.

Requests Now

After Optimization

The browser has sent 3 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Captivology. According to our analytics all requests are already optimized.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

[role] values are not valid

High

ARIA IDs are not unique

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.

High

Document doesn't have a <title> element

These are opportunities to improve keyboard navigation in your application.

High

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

High

Heading elements are not in a sequentially-descending order

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Document doesn't have a <title> element

High

Links do not have descriptive text

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

High

Links are not crawlable

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

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 Captivology.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 Captivology.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 Captivology. 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: