Tools & Wizards About Us

Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

sellosmundo.com

Sellos del Mundo. Tu portal de filatelia en internet. Intercambio y venta gratis.

Page Load Speed

6.5 sec in total

First Response

490 ms

Resources Loaded

5 sec

Page Rendered

1.1 sec

About Website

Click here to check amazing Sellos Mundo content for Thailand. Otherwise, check out these important facts you probably never knew about sellosmundo.com

Este es un espacio d�nde se pueden exponer sellos gratis para intercambiar, vender o simplemente exhibir, y estan organizados por paises.

Visit sellosmundo.com

Key Findings

We analyzed Sellosmundo.com page load time and found that the first response time was 490 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

sellosmundo.com performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

24/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value11.6 s

4/100

10%

TBT (Total Blocking Time)

Value20,760 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value34.9 s

0/100

10%

Network Requests Diagram

sellosmundo.com

490 ms

jquery-ui-1.9.1.custom.css

232 ms

base.css

452 ms

jquery-1.8.2.js

914 ms

jquery-ui-1.9.1.custom.js

488 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 46% of them (30 requests) were addressed to the original Sellosmundo.com, 11% (7 requests) were made to Tpc.googlesyndication.com and 9% (6 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (991 ms) belongs to the original domain Sellosmundo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 70.9 kB (7%)

Content Size

969.7 kB

After Optimization

898.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sellosmundo.com main page is 969.7 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. 65% of websites need less resources to load. Images take 627.1 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 17.3 kB

  • Original 23.5 kB
  • After minification 23.5 kB
  • After compression 6.3 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 17.3 kB or 73% of the original size.

Image Optimization

-2%

Potential reduce by 13.9 kB

  • Original 627.1 kB
  • After minification 613.2 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. Sellos Mundo images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 39.7 kB

  • Original 311.4 kB
  • After minification 311.4 kB
  • After compression 271.6 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 39.7 kB or 13% of the original size.

CSS Optimization

-0%

Potential reduce by 13 B

  • Original 7.7 kB
  • After minification 7.7 kB
  • After compression 7.7 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. Sellosmundo.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 20 (33%)

Requests Now

61

After Optimization

41

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sellos Mundo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

sellosmundo.com accessibility score

74

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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.

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

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

sellosmundo.com 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

Page has valid source maps

SEO Factors

sellosmundo.com SEO score

100

Search Engine Optimization Advices

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sellosmundo.com 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 Sellosmundo.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 Sellos Mundo. 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: