Tools & Wizards About Us
bis.k12.tr screenshot

Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

bis.k12.tr

İstanbul - The British International School - The BIS

Page Load Speed

5.1 sec in total

First Response

504 ms

Resources Loaded

4.4 sec

Page Rendered

186 ms

bis.k12.tr screenshot

About Website

Visit bis.k12.tr now to see the best up-to-date BIS K 12 content and also check out these interesting facts you probably never knew about bis.k12.tr

The British International School in Istanbul has a worldwide reputation for the education it provides. It is a leading private International School in Turkey, offering a modified English National Curr...

Visit bis.k12.tr

Key Findings

We analyzed Bis.k12.tr page load time and found that the first response time was 504 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

bis.k12.tr performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

8/100

25%

SI (Speed Index)

Value28.3 s

0/100

10%

TBT (Total Blocking Time)

Value8,690 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.209

59/100

15%

TTI (Time to Interactive)

Value65.7 s

0/100

10%

Network Requests Diagram

bis.k12.tr

504 ms

www.bis.k12.tr

1272 ms

bootstrap

798 ms

owlcarousel

553 ms

cookieconsent

557 ms

Our browser made a total of 93 requests to load all elements on the main page. We found that 82% of them (76 requests) were addressed to the original Bis.k12.tr, 5% (5 requests) were made to Youtube.com and 2% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Bis.k12.tr.

Page Optimization Overview & Recommendations

Page size can be reduced by 571.8 kB (10%)

Content Size

5.5 MB

After Optimization

4.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bis.k12.tr main page is 5.5 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. Only a small number of websites need less resources to load. Images take 4.6 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 56.6 kB

  • Original 66.9 kB
  • After minification 55.6 kB
  • After compression 10.3 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. This page needs HTML code to be minified as it can gain 11.3 kB, which is 17% 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 56.6 kB or 85% of the original size.

Image Optimization

-3%

Potential reduce by 115.5 kB

  • Original 4.6 MB
  • After minification 4.4 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. BIS K 12 images are well optimized though.

JavaScript Optimization

-48%

Potential reduce by 346.6 kB

  • Original 728.2 kB
  • After minification 728.1 kB
  • After compression 381.6 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 346.6 kB or 48% of the original size.

CSS Optimization

-46%

Potential reduce by 53.1 kB

  • Original 116.6 kB
  • After minification 104.7 kB
  • After compression 63.5 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. Bis.k12.tr needs all CSS files to be minified and compressed as it can save up to 53.1 kB or 46% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (32%)

Requests Now

85

After Optimization

58

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BIS K 12. 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 from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bis.k12.tr

bis.k12.tr

504 ms

www.bis.k12.tr

www.bis.k12.tr

1272 ms

bootstrap

bootstrap

798 ms

owlcarousel

owlcarousel

553 ms

cookieconsent

cookieconsent

557 ms

jquery

jquery

825 ms

style

style

824 ms

fancybox

fancybox

693 ms

fontawesome

fontawesome

949 ms

animate.css

animate.css

864 ms

js

js

70 ms

js

js

117 ms

wow.js

wow.js

606 ms

jqueryval

jqueryval

672 ms

jquerymask

jquerymask

791 ms

bootstrap

bootstrap

888 ms

owlcarousel

owlcarousel

793 ms

cookieconsent

cookieconsent

792 ms

Custom

Custom

850 ms

fancybox

fancybox

1219 ms

fontawesome

fontawesome

1645 ms

embedVideo

embedVideo

892 ms

api.js

api.js

41 ms

fbevents.js

fbevents.js

106 ms

british-agac4.png

british-agac4.png

529 ms

Chevronmenu.png

Chevronmenu.png

273 ms

pattern.png

pattern.png

661 ms

logoM.png

logoM.png

529 ms

logosm.png

logosm.png

530 ms

BIS_PNG.png

BIS_PNG.png

531 ms

BISS_PNG.png

BISS_PNG.png

531 ms

menuIcon.png

menuIcon.png

531 ms

tree_bis.png

tree_bis.png

646 ms

infoIcon.png

infoIcon.png

660 ms

1f01d891-0965-4c48-8107-7f8a3d1539c8.jpg

1f01d891-0965-4c48-8107-7f8a3d1539c8.jpg

930 ms

eb88b977-b61f-4889-90f2-809732b951e3.jpg

eb88b977-b61f-4889-90f2-809732b951e3.jpg

988 ms

333d2e61-d807-44ae-b9b3-516140891766.jpg

333d2e61-d807-44ae-b9b3-516140891766.jpg

805 ms

40c689ff-efd0-468e-af0a-236c54819a53.jpg

40c689ff-efd0-468e-af0a-236c54819a53.jpg

1110 ms

64209350-5cfe-4e85-9d09-99842e65192d.jpg

64209350-5cfe-4e85-9d09-99842e65192d.jpg

1111 ms

quoteL.png

quoteL.png

944 ms

quotesR.png

quotesR.png

987 ms

university.png

university.png

1113 ms

_0000_university-of-cambridge-logo-3.png

_0000_university-of-cambridge-logo-3.png

1112 ms

_0001_University_of_Toronto-Logo.wine.png

_0001_University_of_Toronto-Logo.wine.png

1113 ms

_0002_UC-Berkeley-Emblem.png

_0002_UC-Berkeley-Emblem.png

1114 ms

_0003_UBC.png

_0003_UBC.png

1186 ms

_0004_seul.png

_0004_seul.png

1189 ms

_0005_NYU-Logo.png

_0005_NYU-Logo.png

1212 ms

_0006_London_school_of_economics_logo_with_name.svg.png

_0006_London_school_of_economics_logo_with_name.svg.png

1213 ms

_0007_imperial-college-london-logo-vector.png

_0007_imperial-college-london-logo-vector.png

1228 ms

_0008_Brown-University-Emblem.png

_0008_Brown-University-Emblem.png

1230 ms

_0009_glasgow.png

_0009_glasgow.png

1231 ms

_0010_durham.png

_0010_durham.png

1233 ms

_0011_edinburg.png

_0011_edinburg.png

1257 ms

gill_sans-webfont.woff

gill_sans-webfont.woff

1257 ms

YW3biCHR0Ns

YW3biCHR0Ns

140 ms

fa-solid-900.ttf

fa-solid-900.ttf

1193 ms

fa-regular-400.ttf

fa-regular-400.ttf

1185 ms

fa-brands-400.ttf

fa-brands-400.ttf

1267 ms

www-player.css

www-player.css

7 ms

www-embed-player.js

www-embed-player.js

39 ms

base.js

base.js

79 ms

_0012_goldsmiths.png

_0012_goldsmiths.png

1155 ms

ad_status.js

ad_status.js

161 ms

_0013_kingscollege.png

_0013_kingscollege.png

956 ms

_0014_lucern.png

_0014_lucern.png

959 ms

_0015_nothingam.png

_0015_nothingam.png

975 ms

_0016_royal_halloway.png

_0016_royal_halloway.png

978 ms

_0017_southampton.png

_0017_southampton.png

1063 ms

_0018_suffolk.png

_0018_suffolk.png

1063 ms

SclmollydWJfU3KlFyu6E8_NsFw37tKJuv7lrmV-iyA.js

SclmollydWJfU3KlFyu6E8_NsFw37tKJuv7lrmV-iyA.js

71 ms

embed.js

embed.js

21 ms

_0019_washginton.png

_0019_washginton.png

970 ms

001-contract.png

001-contract.png

969 ms

id

id

25 ms

002-data-processing.png

002-data-processing.png

981 ms

003-map.png

003-map.png

981 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

120 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

120 ms

Create

Create

120 ms

ib.png

ib.png

922 ms

msa.png

msa.png

796 ms

GenerateIT

GenerateIT

45 ms

cambridge.png

cambridge.png

782 ms

recaptcha__en.js

recaptcha__en.js

76 ms

dofe.png

dofe.png

775 ms

cobis.png

cobis.png

788 ms

cis.png

cis.png

744 ms

campus.png

campus.png

751 ms

contact-us.png

contact-us.png

751 ms

bis_logo.png

bis_logo.png

770 ms

forest_green.jpg

forest_green.jpg

787 ms

playicon.png

playicon.png

796 ms

Accessibility Review

bis.k12.tr accessibility score

72

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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 IDs are not unique

Best Practices

bis.k12.tr 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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

bis.k12.tr SEO score

75

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

High

Image elements do not have [alt] attributes

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 Bis.k12.tr 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 Bis.k12.tr 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

bis.k12.tr

Open Graph data is detected on the main page of BIS K 12. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: