Tools & Wizards About Us

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

centrodeopinion.es

Encuestas Pagadas | Home Page | Centro de Opinión

Page Load Speed

1.7 sec in total

First Response

45 ms

Resources Loaded

1.3 sec

Page Rendered

325 ms

About Website

Welcome to centrodeopinion.es homepage info - get ready to check Centro De Opinion best content for Spain right away, or after learning these important things about centrodeopinion.es

Centro de Opinión es un panel de estudios de mercado en el que los miembros juntan puntos por dar sus opiniones en encuestas en línea gratis. Regístrese ahora mismo.

Visit centrodeopinion.es

Key Findings

We analyzed Centrodeopinion.es page load time and found that the first response time was 45 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

centrodeopinion.es performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.4 s

2/100

10%

LCP (Largest Contentful Paint)

Value17.3 s

0/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value4,040 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.233

53/100

15%

TTI (Time to Interactive)

Value21.2 s

1/100

10%

Network Requests Diagram

centrodeopinion.es

45 ms

www.centrodeopinion.es

118 ms

style.css

120 ms

default.css

107 ms

hydra.css

52 ms

Our browser made a total of 111 requests to load all elements on the main page. We found that 7% of them (8 requests) were addressed to the original Centrodeopinion.es, 55% (61 requests) were made to Webassets.ssisurveys.com and 11% (12 requests) were made to Darwin-assets.dynata.com. The less responsive or slowest element that took the longest time to load (649 ms) relates to the external source C.evidon.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 422.9 kB (22%)

Content Size

1.9 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Centrodeopinion.es main page is 1.9 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. 65% of websites need less resources to load. CSS take 779.7 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 206.9 kB

  • Original 265.5 kB
  • After minification 258.8 kB
  • After compression 58.6 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 206.9 kB or 78% of the original size.

Image Optimization

-15%

Potential reduce by 42.9 kB

  • Original 293.6 kB
  • After minification 250.7 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, Centro De Opinion needs image optimization as it can save up to 42.9 kB or 15% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-30%

Potential reduce by 168.3 kB

  • Original 560.2 kB
  • After minification 560.1 kB
  • After compression 391.9 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 168.3 kB or 30% of the original size.

CSS Optimization

-1%

Potential reduce by 4.8 kB

  • Original 779.7 kB
  • After minification 779.7 kB
  • After compression 775.0 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. Centrodeopinion.es has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 49 (49%)

Requests Now

100

After Optimization

51

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 100 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Centro De Opinion. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

centrodeopinion.es accessibility score

90

Accessibility Issues

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

Form elements do not have associated labels

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

centrodeopinion.es best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

centrodeopinion.es SEO score

79

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

Document doesn't have a valid hreflang

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

    ES

  • Language Claimed

    ES

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Centrodeopinion.es can be misinterpreted by Google and other search engines. Our service has detected that Spanish is used on the page, and it matches the claimed language. Our system also found out that Centrodeopinion.es 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 Centro De Opinion. 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: