Tools & Wizards About Us

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 46

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

silvia-serra.com

英亚体育app股份（中国）有限公司官网

Page Load Speed

1.4 sec in total

First Response

437 ms

Resources Loaded

880 ms

Page Rendered

119 ms

About Website

Click here to check amazing Silvia Serra content for Spain. Otherwise, check out these important facts you probably never knew about silvia-serra.com

英亚体育app股份（中国）有限公司官网成立于2006年【婉儿推荐】是一家隶属于中央部委管理的国有企业。英亚体育app股份（中国）有限公司官网我公司是专业从事感应热处理技术研究开发、成套设备设计、生产销售、技术咨询服务的高科技企业。

Visit silvia-serra.com

Key Findings

We analyzed Silvia-serra.com page load time and found that the first response time was 437 ms and then it took 999 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

silvia-serra.com performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

89/100

10%

LCP (Largest Contentful Paint)

Value1.8 s

98/100

25%

SI (Speed Index)

Value1.8 s

100/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value2.0 s

99/100

10%

Network Requests Diagram

silvia-serra.com

437 ms

scripts.js

208 ms

AC_RunActiveContent.js

174 ms

estils.css

275 ms

flash.js

184 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 89% of them (16 requests) were addressed to the original Silvia-serra.com, 11% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (437 ms) belongs to the original domain Silvia-serra.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 44.8 kB (64%)

Content Size

69.7 kB

After Optimization

24.9 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Silvia-serra.com main page is 69.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. Only 10% of websites need less resources to load. HTML takes 28.3 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 24.1 kB

  • Original 28.3 kB
  • After minification 21.7 kB
  • After compression 4.2 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 6.6 kB, 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 24.1 kB or 85% of the original size.

JavaScript Optimization

-26%

Potential reduce by 7.1 kB

  • Original 26.8 kB
  • After minification 25.0 kB
  • After compression 19.8 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 7.1 kB or 26% of the original size.

CSS Optimization

-94%

Potential reduce by 13.7 kB

  • Original 14.6 kB
  • After minification 12.8 kB
  • After compression 924 B

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. Silvia-serra.com needs all CSS files to be minified and compressed as it can save up to 13.7 kB or 94% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (71%)

Requests Now

17

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Silvia Serra. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

silvia-serra.com accessibility score

46

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

High

<object> elements do not have alternate text

Best Practices

silvia-serra.com best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

SEO Factors

silvia-serra.com SEO score

62

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

Image elements do not have [alt] attributes

High

Document uses plugins

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Silvia-serra.com can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Silvia-serra.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Silvia Serra. 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: