Tools & Wizards About Us
alfabook.org screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

alfabook.org

alfabook | рабочие тетради, учебники, канцтовары, купить на класс

Page Load Speed

10.3 sec in total

First Response

3.4 sec

Resources Loaded

6.7 sec

Page Rendered

229 ms

alfabook.org screenshot

About Website

Visit alfabook.org now to see the best up-to-date Alfabook content for Russia and also check out these interesting facts you probably never knew about alfabook.org

alfabook | интернет-магазин учебников, рабочих тетрадей, методичек и школьных канцтоваров, купить по низким ценам на класс. Доставка домой или в школу.

Visit alfabook.org

Key Findings

We analyzed Alfabook.org page load time and found that the first response time was 3.4 sec and then it took 7 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

alfabook.org performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value14.6 s

1/100

10%

TBT (Total Blocking Time)

Value870 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

alfabook.org

3364 ms

jquery.min.js

72 ms

jquery.livequery.js

260 ms

core.css

269 ms

core_popup.css

262 ms

Our browser made a total of 120 requests to load all elements on the main page. We found that 73% of them (88 requests) were addressed to the original Alfabook.org, 9% (11 requests) were made to Vk.com and 4% (5 requests) were made to Mc.yandex.ru. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Alfabook.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (54%)

Content Size

2.0 MB

After Optimization

935.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alfabook.org main page is 2.0 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. 55% of websites need less resources to load. Javascripts take 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 92.0 kB

  • Original 111.5 kB
  • After minification 96.7 kB
  • After compression 19.6 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. This page needs HTML code to be minified as it can gain 14.8 kB, which is 13% 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 92.0 kB or 82% of the original size.

Image Optimization

-6%

Potential reduce by 37.5 kB

  • Original 668.2 kB
  • After minification 630.7 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. Alfabook images are well optimized though.

JavaScript Optimization

-76%

Potential reduce by 782.0 kB

  • Original 1.0 MB
  • After minification 823.9 kB
  • After compression 250.4 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 782.0 kB or 76% of the original size.

CSS Optimization

-83%

Potential reduce by 167.0 kB

  • Original 202.0 kB
  • After minification 168.4 kB
  • After compression 35.0 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. Alfabook.org needs all CSS files to be minified and compressed as it can save up to 167.0 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 71 (61%)

Requests Now

116

After Optimization

45

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 116 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alfabook. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 27 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

alfabook.org

alfabook.org

3364 ms

jquery.min.js

jquery.min.js

72 ms

jquery.livequery.js

jquery.livequery.js

260 ms

core.css

core.css

269 ms

core_popup.css

core_popup.css

262 ms

styles.css

styles.css

265 ms

template_styles.css

template_styles.css

266 ms

core.js

core.js

405 ms

core_popup.js

core_popup.js

386 ms

jquery-ui-1.9.1.custom.min.js

jquery-ui-1.9.1.custom.min.js

912 ms

input.js

input.js

400 ms

form.js

form.js

528 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

397 ms

jquery.mousewheel-3.0.4.pack.js

jquery.mousewheel-3.0.4.pack.js

514 ms

jquery.fancybox-1.3.4.js

jquery.fancybox-1.3.4.js

532 ms

jcarousellite.js

jcarousellite.js

529 ms

jquery.numberMask.js

jquery.numberMask.js

537 ms

jquery.inputmask.bundle.js

jquery.inputmask.bundle.js

1030 ms

jquery.jscrollpane.js

jquery.jscrollpane.js

787 ms

jquery.jscrollpane.css

jquery.jscrollpane.css

659 ms

jquery.ui.all.css

jquery.ui.all.css

664 ms

index.js

index.js

671 ms

jquery.fancybox-1.3.4.css

jquery.fancybox-1.3.4.css

788 ms

style.css

style.css

798 ms

test.css

test.css

805 ms

openapi.js

openapi.js

360 ms

share.js

share.js

11 ms

to_top_arrow.css

to_top_arrow.css

815 ms

ba.js

ba.js

166 ms

jquery.ui.base.css

jquery.ui.base.css

136 ms

jquery.ui.theme.css

jquery.ui.theme.css

131 ms

jquery.ui.core.css

jquery.ui.core.css

136 ms

jquery.ui.resizable.css

jquery.ui.resizable.css

130 ms

jquery.ui.selectable.css

jquery.ui.selectable.css

132 ms

jquery.ui.accordion.css

jquery.ui.accordion.css

132 ms

jquery.ui.autocomplete.css

jquery.ui.autocomplete.css

133 ms

jquery.ui.button.css

jquery.ui.button.css

136 ms

jquery.ui.dialog.css

jquery.ui.dialog.css

258 ms

jquery.ui.slider.css

jquery.ui.slider.css

261 ms

jquery.ui.tabs.css

jquery.ui.tabs.css

262 ms

jquery.ui.datepicker.css

jquery.ui.datepicker.css

264 ms

jquery.ui.progressbar.css

jquery.ui.progressbar.css

266 ms

analytics.js

analytics.js

49 ms

test.css

test.css

139 ms

logo1.png

logo1.png

130 ms

contact_mail.png

contact_mail.png

132 ms

contact_telefon.png

contact_telefon.png

133 ms

top_menu.png

top_menu.png

135 ms

top_menu_sep.png

top_menu_sep.png

137 ms

bg_search.png

bg_search.png

258 ms

search_order2.png

search_order2.png

519 ms

search_order_btn.png

search_order_btn.png

261 ms

close.png

close.png

263 ms

home_gall.png

home_gall.png

1070 ms

home_gall_arrow.png

home_gall_arrow.png

269 ms

res_146x201_b67f3c43e9b40a116e05f1cc249f3090.png

res_146x201_b67f3c43e9b40a116e05f1cc249f3090.png

642 ms

home_gall_btn2.png

home_gall_btn2.png

520 ms

res_146x201_e9548a1856fe80f04100bc601e83aede.jpg

res_146x201_e9548a1856fe80f04100bc601e83aede.jpg

392 ms

res_146x201_c73eeec7650bc481fa7e76a369977748.jpg

res_146x201_c73eeec7650bc481fa7e76a369977748.jpg

403 ms

home_title_arrow.png

home_title_arrow.png

523 ms

home_hr.png

home_hr.png

537 ms

res_80x121_94e4039d9ea937b91e1d7994417b771a.png

res_80x121_94e4039d9ea937b91e1d7994417b771a.png

776 ms

res_80x121_218167da20a1bf5851ed4fa993ca5695.png

res_80x121_218167da20a1bf5851ed4fa993ca5695.png

776 ms

res_80x121_953d3d7be765d493c6290e50c229e7a9.png

res_80x121_953d3d7be765d493c6290e50c229e7a9.png

781 ms

res_80x121_6bebbd8a8cccddb9e503306bdba72ba2.png

res_80x121_6bebbd8a8cccddb9e503306bdba72ba2.png

817 ms

res_80x121_ee53339026d2e9779678ad6a62bcb367.png

res_80x121_ee53339026d2e9779678ad6a62bcb367.png

770 ms

res_80x121_277bda5a0435c7442fac7df1d3b1c42d.png

res_80x121_277bda5a0435c7442fac7df1d3b1c42d.png

1026 ms

res_80x121_060466012b93b86c146e545d23be7f4c.png

res_80x121_060466012b93b86c146e545d23be7f4c.png

1034 ms

res_80x121_cc77ebaf2a98f784ee8330a0ea462e55.png

res_80x121_cc77ebaf2a98f784ee8330a0ea462e55.png

1165 ms

res_80x121_0a176820f9762017e71930567c7c102b.png

res_80x121_0a176820f9762017e71930567c7c102b.png

1040 ms

res_80x121_4a451a8f6db09131b42c03d80a988152.png

res_80x121_4a451a8f6db09131b42c03d80a988152.png

936 ms

res_80x121_5b61255376220abccf54282037fa3581.png

res_80x121_5b61255376220abccf54282037fa3581.png

1071 ms

res_80x121_8b7d3e07d4703278b2cda56454ff6f24.png

res_80x121_8b7d3e07d4703278b2cda56454ff6f24.png

1281 ms

1.png

1.png

1164 ms

2.png

2.png

1171 ms

3.png

3.png

1206 ms

4.png

4.png

1206 ms

5.png

5.png

1294 ms

home_text4.png

home_text4.png

1265 ms

upload.gif

upload.gif

122 ms

collect

collect

40 ms

widget_community.php

widget_community.php

265 ms

watch.js

watch.js

182 ms

bx_stat

bx_stat

224 ms

b-share-icon.png

b-share-icon.png

7 ms

collect

collect

58 ms

archive.otf

archive.otf

1437 ms

home_text4_top.png

home_text4_top.png

1215 ms

home_text4_bot.png

home_text4_bot.png

1215 ms

search_order_arrow.png

search_order_arrow.png

1282 ms

left_basket.png

left_basket.png

1293 ms

left_basket_top.png

left_basket_top.png

1291 ms

watch.js

watch.js

434 ms

left_basket_bot.png

left_basket_bot.png

1223 ms

cont_left_arrow.png

cont_left_arrow.png

1220 ms

left_menu.png

left_menu.png

1282 ms

left_menu_top.png

left_menu_top.png

1289 ms

loader_nav19188_3.js

loader_nav19188_3.js

121 ms

lite.css

lite.css

124 ms

lite.js

lite.js

480 ms

lang3_0.js

lang3_0.js

252 ms

widget_community.css

widget_community.css

239 ms

xdm.js

xdm.js

243 ms

al_community.js

al_community.js

243 ms

connect.js

connect.js

564 ms

left_menu_bot.png

left_menu_bot.png

1166 ms

left_menu_sep_1.png

left_menu_sep_1.png

1210 ms

PNSH_logo_mini.jpg

PNSH_logo_mini.jpg

1096 ms

fb_good.png

fb_good.png

1152 ms

advert.gif

advert.gif

85 ms

jiMlJMesWb4.jpg

jiMlJMesWb4.jpg

353 ms

w_logo.png

w_logo.png

121 ms

1

1

88 ms

dk

dk

175 ms

26812653

26812653

87 ms

widget.a86e7c8a.css

widget.a86e7c8a.css

568 ms

image

image

552 ms

ic_odkl_m.png

ic_odkl_m.png

136 ms

add-or.png

add-or.png

272 ms

ic_odkl.png

ic_odkl.png

395 ms

Accessibility Review

alfabook.org accessibility score

88

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

Best Practices

alfabook.org 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

alfabook.org SEO score

88

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

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

    RU

  • Language Claimed

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alfabook.org can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Alfabook.org 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

alfabook.org

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