Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

iseec.es

Cambridge Insitute - Escuela de idiomas

Page Load Speed

4.6 sec in total

First Response

353 ms

Resources Loaded

3.9 sec

Page Rendered

291 ms

iseec.es screenshot

About Website

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

Cambridge Institute, tu escuela de idiomas en el centro de Madrid. Especialistas en cursos de inglés por videoconferencia.

Visit iseec.es

Key Findings

We analyzed Iseec.es page load time and found that the first response time was 353 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

iseec.es performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.2 s

0/100

25%

SI (Speed Index)

Value18.0 s

0/100

10%

TBT (Total Blocking Time)

Value580 ms

51/100

30%

CLS (Cumulative Layout Shift)

Value0.212

59/100

15%

TTI (Time to Interactive)

Value15.2 s

7/100

10%

Network Requests Diagram

iseec.es

353 ms

cambridgeinstitute.net

256 ms

645 ms

style.css

192 ms

shadowbox.css

192 ms

Our browser made a total of 110 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Iseec.es, 94% (103 requests) were made to Cambridgeinstitute.net and 2% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (962 ms) relates to the external source Cambridgeinstitute.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 697.1 kB (45%)

Content Size

1.5 MB

After Optimization

842.8 kB

In fact, the total size of Iseec.es main page is 1.5 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. 40% of websites need less resources to load. Images take 674.3 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 42.8 kB

  • Original 52.4 kB
  • After minification 49.9 kB
  • After compression 9.6 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 42.8 kB or 82% of the original size.

Image Optimization

-10%

Potential reduce by 69.2 kB

  • Original 674.3 kB
  • After minification 605.1 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. Iseec images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 464.7 kB

  • Original 669.1 kB
  • After minification 634.0 kB
  • After compression 204.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 464.7 kB or 69% of the original size.

CSS Optimization

-84%

Potential reduce by 120.4 kB

  • Original 144.1 kB
  • After minification 98.9 kB
  • After compression 23.7 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. Iseec.es needs all CSS files to be minified and compressed as it can save up to 120.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 63 (59%)

Requests Now

106

After Optimization

43

The browser has sent 106 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Iseec. 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 from 21 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

iseec.es accessibility score

81

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Links do not have a discernible name

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

iseec.es best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

iseec.es SEO score

99

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ES

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Iseec.es can be misinterpreted by Google and other search engines. Our service has detected that Spanish is used on the page, and it does not match the claimed English language. Our system also found out that Iseec.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 Iseec. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: