Tools & Wizards About Us
alphahistory.com screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 91

    SEO

    Google-friendlier than
    71% of websites

alphahistory.com

Alpha History

Page Load Speed

2.8 sec in total

First Response

746 ms

Resources Loaded

1.9 sec

Page Rendered

201 ms

alphahistory.com screenshot

About Website

Visit alphahistory.com now to see the best up-to-date Alpha History content for United States and also check out these interesting facts you probably never knew about alphahistory.com

Alpha History is a free online textbook and resource for history students, providing content and activities for 11 popular history subjects.

Visit alphahistory.com

Key Findings

We analyzed Alphahistory.com page load time and found that the first response time was 746 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

alphahistory.com performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

89/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value1,360 ms

17/100

30%

CLS (Cumulative Layout Shift)

Value0.019

100/100

15%

TTI (Time to Interactive)

Value8.8 s

35/100

10%

Network Requests Diagram

alphahistory.com

746 ms

wp-emoji-release.min.js

136 ms

1456418388index.css

230 ms

1455849453index.css

307 ms

1455849453index.css

138 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 37% of them (25 requests) were addressed to the original Alphahistory.com, 6% (4 requests) were made to Platform.twitter.com and 6% (4 requests) were made to Translate.googleapis.com. The less responsive or slowest element that took the longest time to load (746 ms) belongs to the original domain Alphahistory.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 513.5 kB (18%)

Content Size

2.9 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alphahistory.com main page is 2.9 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. 65% of websites need less resources to load. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 35.3 kB

  • Original 46.2 kB
  • After minification 46.1 kB
  • After compression 10.9 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 35.3 kB or 76% of the original size.

Image Optimization

-3%

Potential reduce by 71.7 kB

  • Original 2.2 MB
  • After minification 2.1 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. Alpha History images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 243.2 kB

  • Original 449.0 kB
  • After minification 448.8 kB
  • After compression 205.8 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 243.2 kB or 54% of the original size.

CSS Optimization

-82%

Potential reduce by 163.4 kB

  • Original 200.1 kB
  • After minification 195.6 kB
  • After compression 36.7 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. Alphahistory.com needs all CSS files to be minified and compressed as it can save up to 163.4 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (60%)

Requests Now

57

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alpha History. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

alphahistory.com

alphahistory.com

746 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

136 ms

1456418388index.css

1456418388index.css

230 ms

1455849453index.css

1455849453index.css

307 ms

1455849453index.css

1455849453index.css

138 ms

1455849454index.js

1455849454index.js

226 ms

buttons.js

buttons.js

10 ms

brand

brand

16 ms

element.js

element.js

34 ms

1455849454index.js

1455849454index.js

184 ms

1456418388index.js

1456418388index.js

234 ms

1456418388index.js

1456418388index.js

206 ms

1456418388index.js

1456418388index.js

262 ms

brand

brand

33 ms

ga.js

ga.js

37 ms

stucco.jpg

stucco.jpg

89 ms

header4.png

header4.png

323 ms

slider1.jpg

slider1.jpg

382 ms

slider2.jpg

slider2.jpg

405 ms

slider3.jpg

slider3.jpg

402 ms

slider4.jpg

slider4.jpg

281 ms

slider6.jpg

slider6.jpg

477 ms

slider7.jpg

slider7.jpg

544 ms

slider8.jpg

slider8.jpg

555 ms

slider9.jpg

slider9.jpg

575 ms

slider10.jpg

slider10.jpg

607 ms

slider11.jpg

slider11.jpg

547 ms

slider12.jpg

slider12.jpg

672 ms

flags18.png

flags18.png

594 ms

v0SdcGFAl2aezM9Vq_aFTQ.ttf

v0SdcGFAl2aezM9Vq_aFTQ.ttf

20 ms

nj47mAZe0mYUIySgfn0wpQ.ttf

nj47mAZe0mYUIySgfn0wpQ.ttf

23 ms

DvlFBScY1r-FMtZSYIYoYw.ttf

DvlFBScY1r-FMtZSYIYoYw.ttf

38 ms

4cKlrioa77J2iqTqBgkRWg.ttf

4cKlrioa77J2iqTqBgkRWg.ttf

38 ms

WyXtbLelkv62W9rJf1sl7ohV7ohV7ohV7ohV7ohV7RK3pFr+gVvaJX9Ipe0St6tV6tV+vVerVerVfr1Xq1Xq3X6DV6jV7T9Yr3qXifivepdPIfY1AvlQABUnNepwAA

WyXtbLelkv62W9rJf1sl7ohV7ohV7ohV7ohV7ohV7RK3pFr+gVvaJX9Ipe0St6tV6tV+vVerVerVfr1Xq1Xq3X6DV6jV7T9Yr3qXifivepdPIfY1AvlQABUnNepwAA

18 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

39 ms

widgets.js

widgets.js

84 ms

__utm.gif

__utm.gif

23 ms

translateelement.css

translateelement.css

81 ms

main.js

main.js

97 ms

collect

collect

94 ms

counter.js

counter.js

6 ms

element_main.js

element_main.js

127 ms

t.php

t.php

119 ms

timeline.1b43d11859b7663a2225b885f87704a5.js

timeline.1b43d11859b7663a2225b885f87704a5.js

148 ms

getAllAppDefault.esi

getAllAppDefault.esi

30 ms

translate_24dp.png

translate_24dp.png

40 ms

l

l

60 ms

googlelogo_color_42x16dp.png

googlelogo_color_42x16dp.png

34 ms

getSegment.php

getSegment.php

160 ms

checkOAuth.esi

checkOAuth.esi

21 ms

syndication

syndication

120 ms

453378879155994624

453378879155994624

137 ms

t.dhj

t.dhj

14 ms

t.dhj

t.dhj

9 ms

cm

cm

27 ms

s-3271.xgi

s-3271.xgi

26 ms

14 ms

hbpix

hbpix

31 ms

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

28 ms

9 ms

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

timeline.4d087f49a21e27038d9769d7c976b8fa.default.css

51 ms

xrefid.xgi

xrefid.xgi

5 ms

wcA0tVNB_normal.png

wcA0tVNB_normal.png

118 ms

pixel

pixel

19 ms

pixel

pixel

17 ms

2981

2981

16 ms

slider-nav.png

slider-nav.png

78 ms

Accessibility Review

alphahistory.com accessibility score

97

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

Links do not have a discernible name

Best Practices

alphahistory.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

alphahistory.com SEO score

91

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

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

alphahistory.com

Open Graph data is detected on the main page of Alpha History. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: