Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

sifei.com.mx

SIFEI | Sistema líder en Facturación Electrónica

Page Load Speed

10.7 sec in total

First Response

217 ms

Resources Loaded

3.3 sec

Page Rendered

7.2 sec

sifei.com.mx screenshot

About Website

Click here to check amazing SIFEI content for Mexico. Otherwise, check out these important facts you probably never knew about sifei.com.mx

Somos un PAC de facturación electrónica autorizado por el SAT que crea soluciones informáticas estandarizadas para la emisión de comprobantes fiscales, de acuerdo con las especificaciones técnicas del...

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Key Findings

We analyzed Sifei.com.mx page load time and found that the first response time was 217 ms and then it took 10.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

sifei.com.mx performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value9.2 s

1/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value540 ms

54/100

30%

CLS (Cumulative Layout Shift)

Value0.089

92/100

15%

TTI (Time to Interactive)

Value29.2 s

0/100

10%

Network Requests Diagram

sifei.com.mx

217 ms

sifei.com.mx

314 ms

www.sifei.com.mx

645 ms

gtm.js

59 ms

web.assets_common.css

148 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 66% of them (49 requests) were addressed to the original Sifei.com.mx, 20% (15 requests) were made to Fonts.odoocdn.com and 5% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Sifei.com.mx.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.6 MB (39%)

Content Size

6.8 MB

After Optimization

4.2 MB

In fact, the total size of Sifei.com.mx main page is 6.8 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. 70% of websites need less resources to load. Images take 6.6 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 105.8 kB

  • Original 121.7 kB
  • After minification 97.1 kB
  • After compression 15.9 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 24.6 kB, which is 20% 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 105.8 kB or 87% of the original size.

Image Optimization

-38%

Potential reduce by 2.5 MB

  • Original 6.6 MB
  • After minification 4.1 MB

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, SIFEI needs image optimization as it can save up to 2.5 MB or 38% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 70 B

  • Original 27.2 kB
  • After minification 27.2 kB
  • After compression 27.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 2.0 kB

  • Original 83.6 kB
  • After minification 83.6 kB
  • After compression 81.5 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. Sifei.com.mx has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 7 (14%)

Requests Now

49

After Optimization

42

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SIFEI. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

sifei.com.mx accessibility score

68

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

Image elements do not have [alt] attributes

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.

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

sifei.com.mx best practices score

67

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

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

High

Missing source maps for large first-party JavaScript

SEO Factors

sifei.com.mx SEO score

90

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

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

    ES

  • Language Claimed

    ES

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sifei.com.mx 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 Sifei.com.mx 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 SIFEI. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: