Tools & Wizards About Us
centrodeopinion.es screenshot

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

centrodeopinion.es screenshot

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

centrodeopinion.es

centrodeopinion.es

45 ms

www.centrodeopinion.es

www.centrodeopinion.es

118 ms

style.css

style.css

120 ms

default.css

default.css

107 ms

hydra.css

hydra.css

52 ms

icons.js

icons.js

109 ms

lottie-test2.js

lottie-test2.js

99 ms

nectarCanvass2-global.js

nectarCanvass2-global.js

216 ms

home.js

home.js

301 ms

layout.js

layout.js

100 ms

bugsnag.min.js

bugsnag.min.js

101 ms

global.js

global.js

101 ms

ock1bog.css

ock1bog.css

99 ms

b7da1dbf2d.js

b7da1dbf2d.js

96 ms

global.js

global.js

69 ms

css

css

32 ms

gtm.js

gtm.js

185 ms

gtm.js

gtm.js

266 ms

bat.js

bat.js

181 ms

OO-ES-logo-white.png

OO-ES-logo-white.png

139 ms

OO-ES-ES-logo-color.png

OO-ES-ES-logo-color.png

231 ms

OO-homepage-hero-1.jpg

OO-homepage-hero-1.jpg

111 ms

Amazon.es.jpg

Amazon.es.jpg

209 ms

MasterCard.jpg

MasterCard.jpg

230 ms

eci-triangulo-logo%20(1).png

eci-triangulo-logo%20(1).png

231 ms

oo-homepage-slider-1.webp

oo-homepage-slider-1.webp

119 ms

OO-slider_1.gif

OO-slider_1.gif

120 ms

oo-homepage-slider-2.webp

oo-homepage-slider-2.webp

158 ms

oo-homepage-slider-3.webp

oo-homepage-slider-3.webp

157 ms

error

error

207 ms

p.css

p.css

136 ms

evidon-sitenotice-tag.js

evidon-sitenotice-tag.js

629 ms

country.js

country.js

649 ms

snthemes.js

snthemes.js

646 ms

analytics.js

analytics.js

127 ms

destination

destination

107 ms

sessions.bugsnag.com

sessions.bugsnag.com

239 ms

lottie.js

lottie.js

191 ms

error

error

276 ms

error

error

277 ms

d

d

143 ms

d

d

170 ms

d

d

170 ms

d

d

170 ms

d

d

235 ms

collect

collect

142 ms

error

error

210 ms

data.json

data.json

19 ms

data.json

data.json

82 ms

collect

collect

94 ms

img_0.png

img_0.png

91 ms

img_1.png

img_1.png

43 ms

img_2.png

img_2.png

45 ms

img_3.png

img_3.png

50 ms

img_4.png

img_4.png

127 ms

img_5.png

img_5.png

46 ms

img_6.png

img_6.png

94 ms

img_7.png

img_7.png

131 ms

img_8.png

img_8.png

50 ms

img_9.png

img_9.png

149 ms

img_10.png

img_10.png

139 ms

img_11.png

img_11.png

164 ms

img_12.png

img_12.png

154 ms

img_13.png

img_13.png

130 ms

img_14.png

img_14.png

133 ms

img_15.png

img_15.png

134 ms

img_16.png

img_16.png

137 ms

img_17.png

img_17.png

136 ms

img_18.png

img_18.png

264 ms

img_0.png

img_0.png

139 ms

img_1.png

img_1.png

140 ms

img_2.png

img_2.png

143 ms

img_3.png

img_3.png

142 ms

img_4.png

img_4.png

145 ms

img_5.png

img_5.png

145 ms

img_6.png

img_6.png

147 ms

img_7.png

img_7.png

148 ms

img_8.png

img_8.png

150 ms

img_9.png

img_9.png

151 ms

img_10.png

img_10.png

151 ms

img_11.png

img_11.png

154 ms

img_12.png

img_12.png

151 ms

img_13.png

img_13.png

153 ms

img_14.png

img_14.png

156 ms

img_15.png

img_15.png

151 ms

notify.bugsnag.com

notify.bugsnag.com

90 ms

img_16.png

img_16.png

126 ms

img_17.png

img_17.png

118 ms

ga-audiences

ga-audiences

35 ms

img_18.png

img_18.png

117 ms

img_0.png

img_0.png

117 ms

img_1.png

img_1.png

114 ms

img_2.png

img_2.png

150 ms

img_3.png

img_3.png

126 ms

img_4.png

img_4.png

123 ms

img_5.png

img_5.png

41 ms

img_6.png

img_6.png

87 ms

img_7.png

img_7.png

40 ms

img_8.png

img_8.png

152 ms

img_9.png

img_9.png

69 ms

img_0.png

img_0.png

70 ms

img_1.png

img_1.png

72 ms

img_2.png

img_2.png

73 ms

img_3.png

img_3.png

75 ms

img_4.png

img_4.png

77 ms

img_5.png

img_5.png

74 ms

img_6.png

img_6.png

78 ms

img_7.png

img_7.png

73 ms

img_8.png

img_8.png

75 ms

img_9.png

img_9.png

74 ms

settingsV2.js

settingsV2.js

131 ms

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

centrodeopinion.es

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: