Tools & Wizards About Us
historyofcomputer.org screenshot

Report Summary

  • 33

    Performance

    Renders faster than
    53% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

historyofcomputer.org

History Of Computer

Page Load Speed

3.7 sec in total

First Response

571 ms

Resources Loaded

2.8 sec

Page Rendered

367 ms

historyofcomputer.org screenshot

About Website

Visit historyofcomputer.org now to see the best up-to-date History Of Computer content and also check out these interesting facts you probably never knew about historyofcomputer.org

All about History Of Computer

Visit historyofcomputer.org

Key Findings

We analyzed Historyofcomputer.org page load time and found that the first response time was 571 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

historyofcomputer.org performance score

33

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

44/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value2,400 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.4 s

4/100

10%

Network Requests Diagram

www.historyofcomputer.org

571 ms

style.css

123 ms

utils.js

124 ms

show_ads.js

4 ms

pubcode.min.js

122 ms

Our browser made a total of 128 requests to load all elements on the main page. We found that 13% of them (16 requests) were addressed to the original Historyofcomputer.org, 9% (12 requests) were made to Iad-usadmm.dotomi.com and 8% (10 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (730 ms) belongs to the original domain Historyofcomputer.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (46%)

Content Size

2.5 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Historyofcomputer.org main page is 2.5 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. 70% of websites need less resources to load. Javascripts take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 25.0 kB

  • Original 36.0 kB
  • After minification 35.3 kB
  • After compression 11.0 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 25.0 kB or 69% of the original size.

Image Optimization

-6%

Potential reduce by 45.1 kB

  • Original 756.3 kB
  • After minification 711.2 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. History Of Computer images are well optimized though.

JavaScript Optimization

-59%

Potential reduce by 856.7 kB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 583.2 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 856.7 kB or 59% of the original size.

CSS Optimization

-83%

Potential reduce by 246.1 kB

  • Original 294.8 kB
  • After minification 276.7 kB
  • After compression 48.7 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. Historyofcomputer.org needs all CSS files to be minified and compressed as it can save up to 246.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 89 (74%)

Requests Now

121

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 121 CSS, Javascripts, AJAX and image requests in order to completely render the main page of History Of Computer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 57 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.historyofcomputer.org

www.historyofcomputer.org

571 ms

style.css

style.css

123 ms

utils.js

utils.js

124 ms

show_ads.js

show_ads.js

4 ms

pubcode.min.js

pubcode.min.js

122 ms

wp-embed.min.js

wp-embed.min.js

137 ms

bindevent.do

bindevent.do

121 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

147 ms

ca-pub-9011234331211977.js

ca-pub-9011234331211977.js

73 ms

zrt_lookup.html

zrt_lookup.html

83 ms

show_ads_impl.js

show_ads_impl.js

34 ms

headerbg.png

headerbg.png

128 ms

historyof-banner.png

historyof-banner.png

372 ms

postheadingbg.gif

postheadingbg.gif

129 ms

abacus.png

abacus.png

415 ms

Eniac.png

Eniac.png

372 ms

IBM1401.png

IBM1401.png

440 ms

IBMsystem360.png

IBMsystem360.png

414 ms

Altair8800.png

Altair8800.png

571 ms

CommodorePET2001.png

CommodorePET2001.png

632 ms

Macintosh128k.png

Macintosh128k.png

720 ms

Powerbook150.png

Powerbook150.png

730 ms

get.media

get.media

108 ms

aLg4MHyyqL0

aLg4MHyyqL0

123 ms

ads

ads

329 ms

osd.js

osd.js

21 ms

ads

ads

313 ms

ads

ads

284 ms

v

v

232 ms

ubr.js

ubr.js

233 ms

www-player-vflMqr8uC.css

www-player-vflMqr8uC.css

4 ms

www-embed-player.js

www-embed-player.js

17 ms

base.js

base.js

32 ms

id

id

110 ms

T8Ys39_ecZUP0z5o0qwgiftCx6c5Z_CDv350QIo51NY.js

T8Ys39_ecZUP0z5o0qwgiftCx6c5Z_CDv350QIo51NY.js

195 ms

ad_status.js

ad_status.js

136 ms

rtb

rtb

72 ms

v

v

69 ms

v

v

68 ms

v

v

68 ms

v

v

68 ms

v

v

67 ms

v

v

104 ms

v

v

142 ms

v

v

141 ms

gen_204

gen_204

65 ms

ad

ad

65 ms

o16FtOAn.js

o16FtOAn.js

166 ms

m_window_focus_non_hydra.js

m_window_focus_non_hydra.js

165 ms

osd_listener.js

osd_listener.js

201 ms

m_qs_click_protection.js

m_qs_click_protection.js

207 ms

2UX7WLTfW3W8TclTUvlFyQ.woff

2UX7WLTfW3W8TclTUvlFyQ.woff

170 ms

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

186 ms

logo_ringo-vflOpz8ZI.png

logo_ringo-vflOpz8ZI.png

182 ms

clickbinder.do

clickbinder.do

241 ms

v.js

v.js

18 ms

ogo.js

ogo.js

87 ms

86 ms

abg.js

abg.js

72 ms

lidar.js

lidar.js

114 ms

d5qAyLYU.js

d5qAyLYU.js

145 ms

pixel

pixel

51 ms

v

v

208 ms

dcmads.js

dcmads.js

65 ms

v

v

246 ms

v

v

246 ms

i_all_aol2.js

i_all_aol2.js

321 ms

pixel

pixel

66 ms

pixel

pixel

64 ms

transparent.png

transparent.png

8 ms

9im3l02I.html

9im3l02I.html

5 ms

impl_v40.js

impl_v40.js

5 ms

T8Ys39_ecZUP0z5o0qwgiftCx6c5Z_CDv350QIo51NY.js

T8Ys39_ecZUP0z5o0qwgiftCx6c5Z_CDv350QIo51NY.js

9 ms

B10713066.149851847;dc_ver=40.106;dc_eid=40004000;sz=160x600;u_sd=1;dc_adk=3411059275;ord=kgo123;click=http%3A%2F%2Fiad-usadmm.dotomi.com%2Fdmm%2Fservlet%2Fop%3Fdtmid%3D823015705768952317%26magic%3D42%26utype%3D0%26trid%3D540304053951450624%26trmagic%3D0%26pnid%3D243%26cg%3D91%26ms%3D21%26comId%3D61695%26parentMsgId%3D11030473%26msgCampId%3D11030473%26ptid%3D449379%26tid%3D2213362%26is_control%3Dfalse%26fpc%3D0%26msgseqid%3D274939%26msgseqnum%3D1%26rfrh%3D520d16516394289b985c50c94531527d%26dtm_server_id%3D4763%26supplyType%3D1%26rt%3D1%26dtm_user_ip%3D34.229.13.126%26iblob%3DCICc67PK9eK_BxDyvavpBhj_4QMgyZ-hBSj___________8BWQAAAAAAANA_YN7Q_a3lK6gFALEFAAAAAAAA0D-5BQAAAAAAAPC_wQWamZmZmZmpP9EFAAAAAAAA8D_YBQDgBf___________wH6BQUxMTQ4N4AG86QEigYAkQbsv85Nm3HTP5kGe4SaIVUU7z-hBgAAAAAAAPC_qAYAsgYGRElSRUNUyQYAAAAAAADwv9AG____________AeEGAAAAAAAA8L_pBgAAAAAAAPC_8QYAAAAAAADwv_kGAAAAAAAA8L-QBwCgBwGoBwCyBwU3MDI1ObgH8wHABwHIB4HSoFDQBwLYBwDiB0tDb250ZW50Q2F0ZWdvcnl7bmFtZT0nSUFCMTknLCBjb2RlPSdJQUIxOScsIGxhYmVsPSdUZWNobm9sb2d5ICYgQ29tcHV0aW5nJ33xBwAAAAAAAPC_-gcDVVNEgAjzAYgIAKgIAMgIyZ-hBdAI____________AdgI____________AeAIAKIJJTIxMDM1NzczMDR8MTU1ODQxNjkyfDB8MHwxMjgyMDY0MDQ1fDCqCRVoaXN0b3J5b2Zjb21wdXRlci5vcmewCQC4CQrCCVsIswYQchgwIP4BKgJXQTIFOTgxMDk6A1VTQUIYQU1BWk9OIFRFQ0hOT0xPR0lFUyBJTkMuSgBSAlVTWQAAAAAAAAAAYQAAAAAAAAAAcg0zNC4yMjkuMTMuMTI2%26rurli%3D0%26opid%3D2%26phase%3D20%26tpm%3Dtrue%26rurli%3D0%26cturl%3Dnull%26forced_click%3D;dc_rfl=1,http%3A%2F%2Fwww.historyofcomputer.org%2F$0;xdt=1;crlt=fVbaJKEbh1;sttr=10;prcl=s

B10713066.149851847;dc_ver=40.106;dc_eid=40004000;sz=160x600;u_sd=1;dc_adk=3411059275;ord=kgo123;click=http%3A%2F%2Fiad-usadmm.dotomi.com%2Fdmm%2Fservlet%2Fop%3Fdtmid%3D823015705768952317%26magic%3D42%26utype%3D0%26trid%3D540304053951450624%26trmagic%3D0%26pnid%3D243%26cg%3D91%26ms%3D21%26comId%3D61695%26parentMsgId%3D11030473%26msgCampId%3D11030473%26ptid%3D449379%26tid%3D2213362%26is_control%3Dfalse%26fpc%3D0%26msgseqid%3D274939%26msgseqnum%3D1%26rfrh%3D520d16516394289b985c50c94531527d%26dtm_server_id%3D4763%26supplyType%3D1%26rt%3D1%26dtm_user_ip%3D34.229.13.126%26iblob%3DCICc67PK9eK_BxDyvavpBhj_4QMgyZ-hBSj___________8BWQAAAAAAANA_YN7Q_a3lK6gFALEFAAAAAAAA0D-5BQAAAAAAAPC_wQWamZmZmZmpP9EFAAAAAAAA8D_YBQDgBf___________wH6BQUxMTQ4N4AG86QEigYAkQbsv85Nm3HTP5kGe4SaIVUU7z-hBgAAAAAAAPC_qAYAsgYGRElSRUNUyQYAAAAAAADwv9AG____________AeEGAAAAAAAA8L_pBgAAAAAAAPC_8QYAAAAAAADwv_kGAAAAAAAA8L-QBwCgBwGoBwCyBwU3MDI1ObgH8wHABwHIB4HSoFDQBwLYBwDiB0tDb250ZW50Q2F0ZWdvcnl7bmFtZT0nSUFCMTknLCBjb2RlPSdJQUIxOScsIGxhYmVsPSdUZWNobm9sb2d5ICYgQ29tcHV0aW5nJ33xBwAAAAAAAPC_-gcDVVNEgAjzAYgIAKgIAMgIyZ-hBdAI____________AdgI____________AeAIAKIJJTIxMDM1NzczMDR8MTU1ODQxNjkyfDB8MHwxMjgyMDY0MDQ1fDCqCRVoaXN0b3J5b2Zjb21wdXRlci5vcmewCQC4CQrCCVsIswYQchgwIP4BKgJXQTIFOTgxMDk6A1VTQUIYQU1BWk9OIFRFQ0hOT0xPR0lFUyBJTkMuSgBSAlVTWQAAAAAAAAAAYQAAAAAAAAAAcg0zNC4yMjkuMTMuMTI2%26rurli%3D0%26opid%3D2%26phase%3D20%26tpm%3Dtrue%26rurli%3D0%26cturl%3Dnull%26forced_click%3D;dc_rfl=1,http%3A%2F%2Fwww.historyofcomputer.org%2F$0;xdt=1;crlt=fVbaJKEbh1;sttr=10;prcl=s

110 ms

getSnoozing.do

getSnoozing.do

189 ms

express_html_inpage_rendering_lib_200_202.js

express_html_inpage_rendering_lib_200_202.js

85 ms

d5qAyLYU.js

d5qAyLYU.js

39 ms

sync

sync

76 ms

jload

jload

104 ms

v

v

51 ms

v

v

50 ms

9im3l02I.html

9im3l02I.html

17 ms

mon

mon

76 ms

icon-tr.png

icon-tr.png

11 ms

icon-tr-full.png

icon-tr-full.png

12 ms

dt

dt

107 ms

delPublishersCookies.html

delPublishersCookies.html

6 ms

get

get

315 ms

oio.js

oio.js

40 ms

polyfills.promise.js

polyfills.promise.js

46 ms

polyfills.intersection-observer.js

polyfills.intersection-observer.js

60 ms

stormtrooper.css

stormtrooper.css

74 ms

optoutx_0.js

optoutx_0.js

19 ms

rum

rum

79 ms

pixel

pixel

55 ms

Pug

Pug

54 ms

rtset

rtset

35 ms

sync

sync

28 ms

cksync.php

cksync.php

114 ms

sync

sync

27 ms

vast.js

vast.js

26 ms

jwpsrv.js

jwpsrv.js

43 ms

related.js

related.js

43 ms

jwplayer.controls.js

jwplayer.controls.js

46 ms

Pix-1x1.gif

Pix-1x1.gif

46 ms

pixel.gif

pixel.gif

62 ms

sd

sd

35 ms

match

match

256 ms

rum

rum

20 ms

550-229078-1801-0

550-229078-1801-0

5 ms

coverage.do

coverage.do

72 ms

exit.min.js

exit.min.js

128 ms

v

v

13 ms

v

v

12 ms

dvtp_src.js

dvtp_src.js

136 ms

lidar.js

lidar.js

8 ms

Q3-dbhoovers-refresh-160x600.html

Q3-dbhoovers-refresh-160x600.html

9 ms

Q3-dbhoovers-refresh-160x600_edgePreload.js

Q3-dbhoovers-refresh-160x600_edgePreload.js

13 ms

activeview

activeview

26 ms

jquery.min.js

jquery.min.js

47 ms

edge.3.0.0.min.js

edge.3.0.0.min.js

334 ms

Q3-dbhoovers-refresh-160x600_edge.js

Q3-dbhoovers-refresh-160x600_edge.js

19 ms

Q3-dbhoovers-refresh-160x600_edgeActions.js

Q3-dbhoovers-refresh-160x600_edgeActions.js

21 ms

jquery.min.js

jquery.min.js

25 ms

edge.3.0.0.min.js

edge.3.0.0.min.js

321 ms

dvtp_src_internal94.js

dvtp_src_internal94.js

11 ms

dv-match4.js

dv-match4.js

7 ms

dv-measurements44.js

dv-measurements44.js

8 ms

Accessibility Review

historyofcomputer.org accessibility score

77

Accessibility Issues

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-*] attributes do not match their roles

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.

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

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

High

Links do not have a discernible name

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

historyofcomputer.org 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

historyofcomputer.org SEO score

100

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Historyofcomputer.org 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 Historyofcomputer.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

historyofcomputer.org

Open Graph description is not detected on the main page of History Of Computer. 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: