Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 44

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

c21alpha.es

Pisos en Barcelona | Inmobiliarias Barcelona |Alfa Calvet

Page Load Speed

7.7 sec in total

First Response

235 ms

Resources Loaded

6.8 sec

Page Rendered

636 ms

c21alpha.es screenshot

About Website

Visit c21alpha.es now to see the best up-to-date C 21 Alpha content and also check out these interesting facts you probably never knew about c21alpha.es

Alfa Calvet con multitud de propiedades, pisos , chalet , casas, villas en todas las zonas y localidades, incluyendo toda la provincia de Barcelona

Visit c21alpha.es

Key Findings

We analyzed C21alpha.es page load time and found that the first response time was 235 ms and then it took 7.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

c21alpha.es performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value15.2 s

0/100

25%

SI (Speed Index)

Value7.8 s

23/100

10%

TBT (Total Blocking Time)

Value3,490 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.681

8/100

15%

TTI (Time to Interactive)

Value21.2 s

1/100

10%

Network Requests Diagram

c21alpha.es

235 ms

www.alfacalvet.es

445 ms

www.alfacalvet.es

4259 ms

css

39 ms

all.css

34 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original C21alpha.es, 75% (71 requests) were made to Alfacalvet.es and 8% (8 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (4.3 sec) relates to the external source Alfacalvet.es.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (58%)

Content Size

1.7 MB

After Optimization

714.8 kB

In fact, the total size of C21alpha.es main page is 1.7 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. 60% of websites need less resources to load. Javascripts take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 213.6 kB

  • Original 240.4 kB
  • After minification 167.9 kB
  • After compression 26.8 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 72.5 kB, which is 30% 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 213.6 kB or 89% of the original size.

Image Optimization

-16%

Potential reduce by 39.6 kB

  • Original 244.8 kB
  • After minification 205.2 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. Obviously, C 21 Alpha needs image optimization as it can save up to 39.6 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-60%

Potential reduce by 642.1 kB

  • Original 1.1 MB
  • After minification 1.1 MB
  • After compression 430.8 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 642.1 kB or 60% of the original size.

CSS Optimization

-67%

Potential reduce by 106.2 kB

  • Original 158.1 kB
  • After minification 126.8 kB
  • After compression 52.0 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. C21alpha.es needs all CSS files to be minified and compressed as it can save up to 106.2 kB or 67% of the original size.

Requests Breakdown

Number of requests can be reduced by 65 (80%)

Requests Now

81

After Optimization

16

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of C 21 Alpha. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 28 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

c21alpha.es accessibility score

44

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

Buttons do not have an accessible name

High

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

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

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

c21alpha.es 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

c21alpha.es SEO score

83

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

Image elements do not have [alt] attributes

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise C21alpha.es 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 C21alpha.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 data is detected on the main page of C 21 Alpha. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: