Tools & Wizards About Us
studentsbook.net screenshot

Report Summary

  • 0

    Performance

  • 49

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

studentsbook.net

Учебная литература и книги на иностранных языках - купить в Москве | интернет-магазин иностранной литературы Studentsbook.net

Page Load Speed

7.9 sec in total

First Response

726 ms

Resources Loaded

6.7 sec

Page Rendered

469 ms

studentsbook.net screenshot

About Website

Click here to check amazing Studentsbook content for Russia. Otherwise, check out these important facts you probably never knew about studentsbook.net

Интернет-магазин иностранной литературы предлагает купить учебники и книги для изучения иностранных языков. Недорогая доставка по Москве и всей России! Скидки при покупке на группу, класс, школу! Звон...

Visit studentsbook.net

Key Findings

We analyzed Studentsbook.net page load time and found that the first response time was 726 ms and then it took 7.2 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

studentsbook.net performance score

0

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

83/100

10%

LCP (Largest Contentful Paint)

Value0

0/100

25%

SI (Speed Index)

Value3.5 s

89/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.1 s

99/100

10%

Network Requests Diagram

studentsbook.net

726 ms

default.css

154 ms

style.css

289 ms

feedback.css

292 ms

search.css

292 ms

Our browser made a total of 99 requests to load all elements on the main page. We found that 48% of them (48 requests) were addressed to the original Studentsbook.net, 12% (12 requests) were made to Web.redhelper.ru and 5% (5 requests) were made to Widgets.livetex.ru. The less responsive or slowest element that took the longest time to load (3.6 sec) relates to the external source Web.redhelper.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 334.8 kB (38%)

Content Size

888.1 kB

After Optimization

553.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Studentsbook.net main page is 888.1 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. 45% of websites need less resources to load. Images take 390.0 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 57.4 kB

  • Original 73.9 kB
  • After minification 71.6 kB
  • After compression 16.4 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 57.4 kB or 78% of the original size.

Image Optimization

-3%

Potential reduce by 10.8 kB

  • Original 390.0 kB
  • After minification 379.1 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. Studentsbook images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 222.1 kB

  • Original 368.6 kB
  • After minification 366.0 kB
  • After compression 146.5 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 222.1 kB or 60% of the original size.

CSS Optimization

-80%

Potential reduce by 44.5 kB

  • Original 55.6 kB
  • After minification 42.8 kB
  • After compression 11.2 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. Studentsbook.net needs all CSS files to be minified and compressed as it can save up to 44.5 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 52 (60%)

Requests Now

87

After Optimization

35

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Studentsbook. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

studentsbook.net

studentsbook.net

726 ms

default.css

default.css

154 ms

style.css

style.css

289 ms

feedback.css

feedback.css

292 ms

search.css

search.css

292 ms

left_menu.css

left_menu.css

297 ms

top_menu.css

top_menu.css

292 ms

reg.css

reg.css

296 ms

news.css

news.css

418 ms

ishop.css

ishop.css

419 ms

highslide.css

highslide.css

425 ms

article.css

article.css

415 ms

jquery-1.5.2.min.js

jquery-1.5.2.min.js

628 ms

jq.validate.js

jq.validate.js

425 ms

window_size.js

window_size.js

546 ms

jquery.flash.js

jquery.flash.js

533 ms

jquery.scrollTo-1.4.2-min.js

jquery.scrollTo-1.4.2-min.js

543 ms

main.js

main.js

544 ms

highslide-with-gallery.packed.js

highslide-with-gallery.packed.js

745 ms

highslide.config.js

highslide.config.js

703 ms

cs.min.js

cs.min.js

454 ms

share.js

share.js

90 ms

top100.jcn

top100.jcn

450 ms

main.js

main.js

883 ms

conversion.js

conversion.js

85 ms

fon.png

fon.png

308 ms

3_1_20C88BFF_00A86BFF_0_pageviews

3_1_20C88BFF_00A86BFF_0_pageviews

273 ms

mc_load.gif

mc_load.gif

270 ms

main_center.png

main_center.png

210 ms

main_bottom.png

main_bottom.png

208 ms

main_top.jpg

main_top.jpg

1071 ms

phone.png

phone.png

207 ms

tm_ls.png

tm_ls.png

224 ms

s.gif

s.gif

332 ms

tm_c.png

tm_c.png

498 ms

tm_r.png

tm_r.png

573 ms

f.php

f.php

405 ms

f.php

f.php

492 ms

f.php

f.php

499 ms

cards.gif

cards.gif

573 ms

178 ms

call_me.png

call_me.png

871 ms

form_loginimg.jpg

form_loginimg.jpg

819 ms

reg_in.png

reg_in.png

819 ms

catalog.png

catalog.png

533 ms

menu_center.png

menu_center.png

810 ms

menu_center2.png

menu_center2.png

893 ms

menu_bottom.png

menu_bottom.png

892 ms

menu_top.png

menu_top.png

892 ms

m1.png

m1.png

891 ms

news.png

news.png

890 ms

ramka.png

ramka.png

986 ms

new.png

new.png

985 ms

hit.png

hit.png

982 ms

spec.png

spec.png

982 ms

hit

hit

319 ms

informer11.png

informer11.png

328 ms

watch.js

watch.js

1 ms

top100.scn

top100.scn

212 ms

analytics.js

analytics.js

46 ms

mnlt_cnt

mnlt_cnt

704 ms

client.js

client.js

278 ms

collect

collect

97 ms

collect

collect

123 ms

ga-audiences

ga-audiences

338 ms

352 ms

ya-share-cnt.html

ya-share-cnt.html

116 ms

watch.js

watch.js

29 ms

main.js

main.js

515 ms

start

start

548 ms

b-share-icon.png

b-share-icon.png

106 ms

b-share_counter_small.png

b-share_counter_small.png

93 ms

1217 ms

share_count

share_count

2392 ms

dk

dk

1421 ms

fql.query

fql.query

278 ms

share.php

share.php

651 ms

57 ms

app3.js

app3.js

848 ms

jquery-new.min.js

jquery-new.min.js

1407 ms

studentsbook

studentsbook

181 ms

main.js

main.js

3586 ms

53460.js

53460.js

176 ms

widget-ui-3.js

widget-ui-3.js

834 ms

collect

collect

25 ms

mac.css

mac.css

137 ms

Ava_default.png

Ava_default.png

184 ms

badge13.png

badge13.png

330 ms

333 ms

Roboto:400,700,500,300,100&subset=cyrillic,latin

Roboto:400,700,500,300,100&subset=cyrillic,latin

136 ms

main.js

main.js

1130 ms

53460.css

53460.css

165 ms

130 ms

event-service-app.widgets-thrift-http

event-service-app.widgets-thrift-http

266 ms

auth

auth

434 ms

client.js

client.js

627 ms

add-page

add-page

373 ms

1460138988293

1460138988293

342 ms

mac.css

mac.css

346 ms

Accessibility Review

studentsbook.net accessibility score

49

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

Image elements do not have [alt] attributes

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

studentsbook.net best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Browser errors were logged to the console

SEO Factors

studentsbook.net SEO score

92

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Studentsbook.net can be misinterpreted by Google and other search engines. Our service has detected that Russian 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 Studentsbook.net main page’s claimed encoding is windows-1251. 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

studentsbook.net

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