Report Summary

  • 35

    Performance

    Renders faster than
    56% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 63% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

carlotaperez.org

Carlota Perez

Page Load Speed

2.2 sec in total

First Response

589 ms

Resources Loaded

1.5 sec

Page Rendered

144 ms

carlotaperez.org screenshot

About Website

Welcome to carlotaperez.org homepage info - get ready to check Carlota Perez best content for Spain right away, or after learning these important things about carlotaperez.org

Researcher, lecturer and international consultant, specialized in the social and economic impact of technical change and in the historically changing conditions

Visit carlotaperez.org

Key Findings

We analyzed Carlotaperez.org page load time and found that the first response time was 589 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

carlotaperez.org performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

43/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value5.1 s

61/100

10%

TBT (Total Blocking Time)

Value940 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.106

88/100

15%

TTI (Time to Interactive)

Value10.8 s

22/100

10%

Network Requests Diagram

carlotaperez.org

589 ms

cp.org.css

142 ms

jquery-1.7.1.min.js

470 ms

slides.jquery.js

331 ms

cp.org.slides.css

220 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 50% of them (17 requests) were addressed to the original Carlotaperez.org, 12% (4 requests) were made to F.vimeocdn.com and 6% (2 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (589 ms) belongs to the original domain Carlotaperez.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 779.4 kB (68%)

Content Size

1.1 MB

After Optimization

370.3 kB

In fact, the total size of Carlotaperez.org main page is 1.1 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. 50% of websites need less resources to load. Javascripts take 667.3 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 12.3 kB

  • Original 18.1 kB
  • After minification 15.7 kB
  • After compression 5.8 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 2.5 kB, which is 14% 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 12.3 kB or 68% of the original size.

Image Optimization

-8%

Potential reduce by 7.5 kB

  • Original 94.7 kB
  • After minification 87.2 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. Carlota Perez images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 446.5 kB

  • Original 667.3 kB
  • After minification 657.0 kB
  • After compression 220.8 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 446.5 kB or 67% of the original size.

CSS Optimization

-85%

Potential reduce by 313.1 kB

  • Original 369.6 kB
  • After minification 368.0 kB
  • After compression 56.5 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. Carlotaperez.org needs all CSS files to be minified and compressed as it can save up to 313.1 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (55%)

Requests Now

33

After Optimization

15

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Carlota Perez. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

carlotaperez.org accessibility score

86

Accessibility Issues

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.

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

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

High

Links do not have a discernible name

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

carlotaperez.org 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

carlotaperez.org SEO score

83

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Carlotaperez.org 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 Carlotaperez.org 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 Carlota Perez. 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: