Tools & Wizards About Us
chem.boun.edu.tr screenshot

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 76

    SEO

    Google-friendlier than
    35% of websites

chem.boun.edu.tr

Department of Chemistry | Boğaziçi University Department of Chemistry

Page Load Speed

8.4 sec in total

First Response

417 ms

Resources Loaded

7.8 sec

Page Rendered

193 ms

chem.boun.edu.tr screenshot

About Website

Welcome to chem.boun.edu.tr homepage info - get ready to check Chem Boun best content for Turkey right away, or after learning these important things about chem.boun.edu.tr

Visit chem.boun.edu.tr

Key Findings

We analyzed Chem.boun.edu.tr page load time and found that the first response time was 417 ms and then it took 8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

chem.boun.edu.tr performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.3 s

0/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value230 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.518

15/100

15%

TTI (Time to Interactive)

Value15.7 s

6/100

10%

Network Requests Diagram

chem.boun.edu.tr

417 ms

chem.bogazici.edu.tr

556 ms

chem.bogazici.edu.tr

1360 ms

js

52 ms

system.base.css

282 ms

Our browser made a total of 74 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Chem.boun.edu.tr, 81% (60 requests) were made to Chem.bogazici.edu.tr and 11% (8 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source Chem.bogazici.edu.tr.

Page Optimization Overview & Recommendations

Page size can be reduced by 867.6 kB (41%)

Content Size

2.1 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chem.boun.edu.tr main page is 2.1 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 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 28.2 kB

  • Original 34.2 kB
  • After minification 30.8 kB
  • After compression 5.9 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. 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 28.2 kB or 83% of the original size.

Image Optimization

-17%

Potential reduce by 222.7 kB

  • Original 1.3 MB
  • After minification 1.1 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, Chem Boun needs image optimization as it can save up to 222.7 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-73%

Potential reduce by 186.9 kB

  • Original 256.0 kB
  • After minification 219.2 kB
  • After compression 69.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 186.9 kB or 73% of the original size.

CSS Optimization

-82%

Potential reduce by 429.8 kB

  • Original 525.0 kB
  • After minification 480.4 kB
  • After compression 95.2 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. Chem.boun.edu.tr needs all CSS files to be minified and compressed as it can save up to 429.8 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (83%)

Requests Now

58

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chem Boun. 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 32 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chem.boun.edu.tr

chem.boun.edu.tr

417 ms

chem.bogazici.edu.tr

chem.bogazici.edu.tr

556 ms

chem.bogazici.edu.tr

chem.bogazici.edu.tr

1360 ms

js

js

52 ms

system.base.css

system.base.css

282 ms

system.menus.css

system.menus.css

2558 ms

system.messages.css

system.messages.css

2563 ms

system.theme.css

system.theme.css

2558 ms

owl.carousel.css

owl.carousel.css

424 ms

owl.theme.css

owl.theme.css

2560 ms

owl.transitions.css

owl.transitions.css

2565 ms

calendar_multiday.css

calendar_multiday.css

566 ms

date.css

date.css

710 ms

datepicker.1.7.css

datepicker.1.7.css

854 ms

field.css

field.css

997 ms

node.css

node.css

1141 ms

search.css

search.css

1284 ms

user.css

user.css

1428 ms

views.css

views.css

1571 ms

colorbox_style.css

colorbox_style.css

1715 ms

ctools.css

ctools.css

1858 ms

locale.css

locale.css

2001 ms

bootstrap.min.css

bootstrap.min.css

2449 ms

font-awesome.min.css

font-awesome.min.css

2595 ms

all.min.css

all.min.css

3102 ms

owl-theme.css

owl-theme.css

2691 ms

default.css

default.css

2841 ms

style.css

style.css

2830 ms

theme.css

theme.css

2847 ms

media.css

media.css

2739 ms

custom.css

custom.css

2966 ms

medias.css

medias.css

2884 ms

course-descriptions.css

course-descriptions.css

2972 ms

curriculum.css

curriculum.css

2984 ms

app.css

app.css

2991 ms

jquery.min.js

jquery.min.js

3029 ms

jquery-extend-3.4.0.js

jquery-extend-3.4.0.js

3123 ms

jquery-html-prefilter-3.5.0-backport.js

jquery-html-prefilter-3.5.0-backport.js

3124 ms

jquery.once.js

jquery.once.js

3127 ms

drupal.js

drupal.js

3010 ms

jquery_browser.js

jquery_browser.js

2904 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

2824 ms

colorbox.js

colorbox.js

2684 ms

colorbox_style.js

colorbox_style.js

2552 ms

form.js

form.js

2426 ms

collapse.js

collapse.js

2290 ms

custom.js

custom.js

2185 ms

bootstrap.min.js

bootstrap.min.js

2236 ms

course-descriptions.js

course-descriptions.js

1828 ms

curriculum.js

curriculum.js

1707 ms

owl.carousel.min.js

owl.carousel.min.js

1571 ms

owlcarousel.settings.js

owlcarousel.settings.js

1468 ms

css2

css2

31 ms

dlogo_dark.svg

dlogo_dark.svg

776 ms

bulogo160-en.svg

bulogo160-en.svg

150 ms

logotype-en.svg

logotype-en.svg

152 ms

enzymatic_ctalysis_0.png

enzymatic_ctalysis_0.png

292 ms

bclxl3.png

bclxl3.png

1134 ms

picture3_0.png

picture3_0.png

691 ms

picture5.png

picture5.png

1100 ms

bg_tab.png

bg_tab.png

210 ms

pxiEyp8kv8JHgFVrFJA.ttf

pxiEyp8kv8JHgFVrFJA.ttf

27 ms

pxiByp8kv8JHgFVrLGT9V1s.ttf

pxiByp8kv8JHgFVrLGT9V1s.ttf

38 ms

pxiByp8kv8JHgFVrLCz7V1s.ttf

pxiByp8kv8JHgFVrLCz7V1s.ttf

78 ms

pxiByp8kv8JHgFVrLBT5V1s.ttf

pxiByp8kv8JHgFVrLBT5V1s.ttf

77 ms

fa-solid-900.woff

fa-solid-900.woff

352 ms

fa-solid-900.ttf

fa-solid-900.ttf

780 ms

fa-regular-400.ttf

fa-regular-400.ttf

360 ms

pxiGyp8kv8JHgFVrJJLedw.ttf

pxiGyp8kv8JHgFVrJJLedw.ttf

65 ms

pxiDyp8kv8JHgFVrJJLmg1hlEA.ttf

pxiDyp8kv8JHgFVrJJLmg1hlEA.ttf

90 ms

pxiDyp8kv8JHgFVrJJLmy15lEA.ttf

pxiDyp8kv8JHgFVrJJLmy15lEA.ttf

76 ms

pxiDyp8kv8JHgFVrJJLm81xlEA.ttf

pxiDyp8kv8JHgFVrJJLm81xlEA.ttf

120 ms

dlogo_dark.svg

dlogo_dark.svg

416 ms

dlogo_dark.svg

dlogo_dark.svg

860 ms

Accessibility Review

chem.boun.edu.tr accessibility score

75

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

chem.boun.edu.tr best practices score

75

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

Page has valid source maps

SEO Factors

chem.boun.edu.tr SEO score

76

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chem.boun.edu.tr can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Chem.boun.edu.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

chem.boun.edu.tr

Open Graph description is not detected on the main page of Chem Boun. 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: