Tools & Wizards About Us
old.i-scream.co.kr screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    58% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

old.i-scream.co.kr

하이클래스 HiClass

Page Load Speed

19.8 sec in total

First Response

1.6 sec

Resources Loaded

17.9 sec

Page Rendered

200 ms

old.i-scream.co.kr screenshot

About Website

Visit old.i-scream.co.kr now to see the best up-to-date Old I Scream content for South Korea and also check out these interesting facts you probably never knew about old.i-scream.co.kr

전국 초등학교 99%가 이용하는 온라인 수업 플랫폼! 알림장, 가정통신문, 1:1채팅, 하이콜 무료전화까지 편리하고 똑똑한 수업도구를 이용해보세요.

Visit old.i-scream.co.kr

Key Findings

We analyzed Old.i-scream.co.kr page load time and found that the first response time was 1.6 sec and then it took 18.1 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

old.i-scream.co.kr performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value36.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value36.9 s

0/100

25%

SI (Speed Index)

Value36.6 s

0/100

10%

TBT (Total Blocking Time)

Value320 ms

77/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value41.1 s

0/100

10%

Network Requests Diagram

old.i-scream.co.kr

1626 ms

default.css

405 ms

layout.css

687 ms

board.css

472 ms

main_2014.css

708 ms

Our browser made a total of 164 requests to load all elements on the main page. We found that 7% of them (11 requests) were addressed to the original Old.i-scream.co.kr, 84% (138 requests) were made to Download.i-scream.co.kr and 8% (13 requests) were made to Xcdn.i-scream.co.kr. The less responsive or slowest element that took the longest time to load (15.9 sec) relates to the external source Xcdn.i-scream.co.kr.

Page Optimization Overview & Recommendations

Page size can be reduced by 586.1 kB (50%)

Content Size

1.2 MB

After Optimization

581.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Old.i-scream.co.kr main page is 1.2 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 739.6 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 102.3 kB

  • Original 120.5 kB
  • After minification 85.4 kB
  • After compression 18.3 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 35.1 kB, which is 29% 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 102.3 kB or 85% of the original size.

Image Optimization

-32%

Potential reduce by 237.1 kB

  • Original 739.6 kB
  • After minification 502.4 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. Obviously, Old I Scream needs image optimization as it can save up to 237.1 kB or 32% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-79%

Potential reduce by 174.8 kB

  • Original 222.4 kB
  • After minification 176.2 kB
  • After compression 47.6 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 174.8 kB or 79% of the original size.

CSS Optimization

-84%

Potential reduce by 71.9 kB

  • Original 85.4 kB
  • After minification 74.2 kB
  • After compression 13.5 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. Old.i-scream.co.kr needs all CSS files to be minified and compressed as it can save up to 71.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (12%)

Requests Now

163

After Optimization

144

  • Images
  • JavaScript
  • CSS

The browser has sent 163 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Old I Scream. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

old.i-scream.co.kr

old.i-scream.co.kr

1626 ms

default.css

default.css

405 ms

layout.css

layout.css

687 ms

board.css

board.css

472 ms

main_2014.css

main_2014.css

708 ms

jquery-1.4.2.min.js

jquery-1.4.2.min.js

950 ms

common.js

common.js

805 ms

swf_include.js

swf_include.js

703 ms

common.js

common.js

1140 ms

member.js

member.js

937 ms

btn_step_close.gif

btn_step_close.gif

1572 ms

cash_box_icon1.png

cash_box_icon1.png

15412 ms

ocsamclass_201512231129925181_yiyi064.jpg

ocsamclass_201512231129925181_yiyi064.jpg

825 ms

tab_step3_off.gif

tab_step3_off.gif

1620 ms

step3_1.png

step3_1.png

1625 ms

step3_2.gif

step3_2.gif

1630 ms

step3_3.gif

step3_3.gif

1661 ms

step3_4.gif

step3_4.gif

1679 ms

step3_5.gif

step3_5.gif

1768 ms

step3_6.gif

step3_6.gif

1849 ms

step3_after.gif

step3_after.gif

1857 ms

tab_step2_off.gif

tab_step2_off.gif

1864 ms

step2_1.gif

step2_1.gif

1911 ms

step2_2.gif

step2_2.gif

1938 ms

step2_3.gif

step2_3.gif

1969 ms

step2_4.gif

step2_4.gif

2078 ms

step2_5.gif

step2_5.gif

2089 ms

step2_6.gif

step2_6.gif

2098 ms

step2_7.gif

step2_7.gif

2161 ms

step2_8.gif

step2_8.gif

2198 ms

step2_after.gif

step2_after.gif

2172 ms

top_layer151130.jpg

top_layer151130.jpg

2539 ms

gnb_teacher.png

gnb_teacher.png

2320 ms

gnb_line.png

gnb_line.png

2332 ms

gnb_mall.png

gnb_mall.png

2412 ms

gnb_tmall.png

gnb_tmall.png

2375 ms

icon_n_n.gif

icon_n_n.gif

2457 ms

gnb_logo2014.png

gnb_logo2014.png

2552 ms

gnb_btn_search.png

gnb_btn_search.png

2567 ms

old_gnb_bn.png

old_gnb_bn.png

2577 ms

lnb_menu1.png

lnb_menu1.png

2663 ms

lnb_menu2.png

lnb_menu2.png

2717 ms

lnb_menu3.png

lnb_menu3.png

2768 ms

lnb_menu4.png

lnb_menu4.png

2784 ms

lnb_menu5.png

lnb_menu5.png

2801 ms

lnb_menu6.png

lnb_menu6.png

2780 ms

lnb_menu7.png

lnb_menu7.png

2914 ms

lnb_menu8.png

lnb_menu8.png

2977 ms

cash_box_icon5.png

cash_box_icon5.png

15409 ms

cash_box_icon3.png

cash_box_icon3.png

15412 ms

cash_box_icon7.png

cash_box_icon7.png

15411 ms

cash_box_icon4.png

cash_box_icon4.png

15436 ms

cash_box_icon6.png

cash_box_icon6.png

15440 ms

bn_memo.png

bn_memo.png

15796 ms

main_Lbn5_20151230.png

main_Lbn5_20151230.png

15820 ms

main_Lbn2_20150900.png

main_Lbn2_20150900.png

15823 ms

main_Lbn3_20150900.png

main_Lbn3_20150900.png

15858 ms

main_Lbn6_20150106.jpg

main_Lbn6_20150106.jpg

15874 ms

t2151112q73703.jpg

t2151112q73703.jpg

15659 ms

t2130827o5527593.jpg

t2130827o5527593.jpg

15880 ms

chasam_201511251052450551_coolsidef1.jpg

chasam_201511251052450551_coolsidef1.jpg

1382 ms

wlo.js

wlo.js

258 ms

lnb_menu10.png

lnb_menu10.png

1442 ms

icon_n.png

icon_n.png

1372 ms

btn_login.png

btn_login.png

1401 ms

iscream_main_lnb_banner01_160318.png

iscream_main_lnb_banner01_160318.png

1416 ms

bn_partner.jpg

bn_partner.jpg

1514 ms

bn_mou.jpg

bn_mou.jpg

1566 ms

btn_my_grade_set.png

btn_my_grade_set.png

1427 ms

btn_my_class_make.png

btn_my_class_make.png

1388 ms

btn_my_exam.png

btn_my_exam.png

1401 ms

icon_my_book1.png

icon_my_book1.png

1417 ms

icon_my_book4.png

icon_my_book4.png

1513 ms

icon_my_book33.png

icon_my_book33.png

1459 ms

icon_my_book27.png

icon_my_book27.png

1495 ms

icon_my_book15.png

icon_my_book15.png

1424 ms

icon_my_book16.png

icon_my_book16.png

1401 ms

icon_my_book17.png

icon_my_book17.png

1417 ms

icon_my_book18.png

icon_my_book18.png

1437 ms

icon_my_book19.png

icon_my_book19.png

1502 ms

icon_my_book20.png

icon_my_book20.png

1497 ms

icon_my_book24.png

icon_my_book24.png

1400 ms

icon_my_book12.png

icon_my_book12.png

1429 ms

icon_my_book23.png

icon_my_book23.png

1373 ms

icon_my_book2.png

icon_my_book2.png

1388 ms

icon_my_book3.png

icon_my_book3.png

1469 ms

icon_my_book5.png

icon_my_book5.png

1386 ms

icon_my_book7.png

icon_my_book7.png

1400 ms

icon_my_book9.png

icon_my_book9.png

1417 ms

icon_my_book10.png

icon_my_book10.png

1444 ms

icon_my_book11.png

icon_my_book11.png

1339 ms

icon_my_book6.png

icon_my_book6.png

1438 ms

icon_my_book8.png

icon_my_book8.png

1407 ms

tit_cast1.gif

tit_cast1.gif

1405 ms

btn_request.gif

btn_request.gif

1434 ms

txt_icon_state2.gif

txt_icon_state2.gif

1404 ms

tit_cast2.gif

tit_cast2.gif

1367 ms

t2010527r2024504.jpg

t2010527r2024504.jpg

1408 ms

t2090823r5710897.jpg

t2090823r5710897.jpg

1443 ms

tit_theme1_0921-1.png

tit_theme1_0921-1.png

1419 ms

tit_theme1_0921-3.png

tit_theme1_0921-3.png

1391 ms

tit_theme1_8.png

tit_theme1_8.png

1415 ms

tit_theme1_7.png

tit_theme1_7.png

1375 ms

tit_theme1_17_up.png

tit_theme1_17_up.png

1429 ms

tit_theme1_18.png

tit_theme1_18.png

1384 ms

tit_community.png

tit_community.png

1415 ms

thum_cont_01.jpg

thum_cont_01.jpg

1680 ms

w_bn_160201.jpg

w_bn_160201.jpg

1887 ms

tit_partner.gif

tit_partner.gif

1412 ms

img_layer_ci-01.gif

img_layer_ci-01.gif

1398 ms

img_layer_ci-02.gif

img_layer_ci-02.gif

1387 ms

img_layer_ci-03.gif

img_layer_ci-03.gif

1401 ms

img_layer_ci-04.gif

img_layer_ci-04.gif

1566 ms

img_layer_ci-05.gif

img_layer_ci-05.gif

1511 ms

img_layer_ci-06.gif

img_layer_ci-06.gif

1483 ms

img_layer_ci-07.gif

img_layer_ci-07.gif

1448 ms

img_layer_ci-08.gif

img_layer_ci-08.gif

1493 ms

img_layer_ci-09.gif

img_layer_ci-09.gif

1506 ms

img_layer_ci-11.gif

img_layer_ci-11.gif

1579 ms

img_layer_ci10.gif

img_layer_ci10.gif

1550 ms

iscream_main_rollingbanner01.jpg

iscream_main_rollingbanner01.jpg

2021 ms

btn_roll_prev.gif

btn_roll_prev.gif

1476 ms

btn_roll_stop.gif

btn_roll_stop.gif

1511 ms

btn_roll_play.gif

btn_roll_play.gif

1476 ms

btn_roll_next.gif

btn_roll_next.gif

1556 ms

tit_newcontents.png

tit_newcontents.png

1583 ms

main_newcontents_pre.png

main_newcontents_pre.png

1613 ms

t2151223q3033359.jpg

t2151223q3033359.jpg

1477 ms

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1515 ms

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1585 ms

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1640 ms

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1618 ms

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1588 ms

main_newcontents_next.png

main_newcontents_next.png

1555 ms

tit_snotice_on.png

tit_snotice_on.png

1592 ms

tit_inotice_off.png

tit_inotice_off.png

1635 ms

main_rbn1_20140200.png

main_rbn1_20140200.png

1613 ms

old_main_layer_160302.png

old_main_layer_160302.png

2437 ms

call_iscream.gif

call_iscream.gif

1565 ms

call_teacher.gif

call_teacher.gif

1577 ms

call_mall.gif

call_mall.gif

1616 ms

call_lifemall.gif

call_lifemall.gif

1590 ms

bg_step_menu_wrap.png

bg_step_menu_wrap.png

1484 ms

bg_header.png

bg_header.png

1525 ms

bg_header_top.png

bg_header_top.png

1597 ms

icon_bookmark_open.png

icon_bookmark_open.png

1577 ms

icon_bookmark_close.png

icon_bookmark_close.png

1516 ms

icon_bookmark_home.png

icon_bookmark_home.png

1499 ms

bg_gnb.png

bg_gnb.png

1515 ms

gnb_search.png

gnb_search.png

1618 ms

bg_login_on.png

bg_login_on.png

1531 ms

input_txt_id.gif

input_txt_id.gif

1531 ms

bg_capslock.png

bg_capslock.png

1570 ms

input_txt_pw.gif

input_txt_pw.gif

1590 ms

bg_cust_service_m.png

bg_cust_service_m.png

1546 ms

box_my_grade.png

box_my_grade.png

1831 ms

line_dot.gif

line_dot.gif

1549 ms

bul_list.gif

bul_list.gif

1560 ms

bg_roll_control.png

bg_roll_control.png

1615 ms

bg_main_quick.png

bg_main_quick.png

1519 ms

footer_repeat_150504.gif

footer_repeat_150504.gif

1567 ms

footer_sigong_20150504.gif

footer_sigong_20150504.gif

1569 ms

brn_screen_close.jpg

brn_screen_close.jpg

1586 ms

img_screen_logo.jpg

img_screen_logo.jpg

1597 ms

Accessibility Review

old.i-scream.co.kr accessibility score

100

Accessibility Issues

Best Practices

old.i-scream.co.kr best practices score

67

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

old.i-scream.co.kr SEO score

83

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

Language and Encoding

  • Language Detected

    KO

  • Language Claimed

    KO

  • Encoding

    EUC-KR

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Old.i-scream.co.kr can be misinterpreted by Google and other search engines. Our service has detected that Korean is used on the page, and it matches the claimed language. Our system also found out that Old.i-scream.co.kr main page’s claimed encoding is euc-kr. 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

old.i-scream.co.kr

Open Graph description is not detected on the main page of Old I Scream. 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: