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mail.rebtel.com screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

mail.rebtel.com

Cheap International Calls and Unlimited Calling | Rebtel.com

Page Load Speed

3.8 sec in total

First Response

570 ms

Resources Loaded

2.3 sec

Page Rendered

934 ms

mail.rebtel.com screenshot

About Website

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Key Findings

We analyzed Mail.rebtel.com page load time and found that the first response time was 570 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

mail.rebtel.com performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value5.8 s

50/100

10%

TBT (Total Blocking Time)

Value980 ms

28/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value14.2 s

9/100

10%

Network Requests Diagram

570 ms

mparticle.js

20 ms

rebtel.min.css

43 ms

gtm.js

358 ms

hero.jpg

63 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Mail.rebtel.com, 9% (3 requests) were made to Google-analytics.com and 9% (3 requests) were made to Rebtel.imgix.net. The less responsive or slowest element that took the longest time to load (570 ms) relates to the external source Rebtel.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 212.3 kB (34%)

Content Size

631.7 kB

After Optimization

419.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Mail.rebtel.com main page is 631.7 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. 70% of websites need less resources to load. HTML takes 294.2 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 210.8 kB

  • Original 294.2 kB
  • After minification 291.8 kB
  • After compression 83.4 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 210.8 kB or 72% of the original size.

Image Optimization

-0%

Potential reduce by 309 B

  • Original 202.6 kB
  • After minification 202.3 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. Mail Rebtel images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 888 B

  • Original 55.2 kB
  • After minification 55.2 kB
  • After compression 54.4 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

-0%

Potential reduce by 364 B

  • Original 79.7 kB
  • After minification 79.7 kB
  • After compression 79.3 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. Mail.rebtel.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 17 (63%)

Requests Now

27

After Optimization

10

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mail Rebtel. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

570 ms

mparticle.js

mparticle.js

20 ms

rebtel.min.css

rebtel.min.css

43 ms

gtm.js

gtm.js

358 ms

hero.jpg

hero.jpg

63 ms

xs.png

xs.png

57 ms

app-desktop.jpg

app-desktop.jpg

328 ms

3069A7_0_0.woff

3069A7_0_0.woff

329 ms

bundle.js

bundle.js

41 ms

app.js

app.js

317 ms

FuturaPT-Light.woff

FuturaPT-Light.woff

192 ms

rb.ttf

rb.ttf

191 ms

3069A7_2_0.woff

3069A7_2_0.woff

192 ms

s.js

s.js

429 ms

optimize.js

optimize.js

136 ms

conversion_async.js

conversion_async.js

237 ms

bat.js

bat.js

233 ms

fbevents.js

fbevents.js

242 ms

js

js

36 ms

analytics.js

analytics.js

92 ms

95 ms

4021875.js

4021875.js

53 ms

identity.js

identity.js

30 ms

250412788492222

250412788492222

133 ms

collect

collect

12 ms

collect

collect

30 ms

kindly-chat.js

kindly-chat.js

111 ms

4021875

4021875

256 ms

ga-audiences

ga-audiences

244 ms

249 ms

tp.widget.bootstrap.min.js

tp.widget.bootstrap.min.js

192 ms

27 ms

clarity.js

clarity.js

86 ms

Accessibility Review

mail.rebtel.com accessibility score

73

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

Low

No form fields have multiple labels

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

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

mail.rebtel.com 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

mail.rebtel.com SEO score

84

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

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Mail.rebtel.com 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 Mail.rebtel.com 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

mail.rebtel.com

Open Graph description is not detected on the main page of Mail Rebtel. 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: