Tools & Wizards About Us
waywiser.rc.fas.harvard.edu screenshot

Report Summary

  • 54

    Performance

    Renders faster than
    71% 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

  • 92

    SEO

    Google-friendlier than
    74% of websites

waywiser.rc.fas.harvard.edu

The Collection of Historical Scientific Instruments

Page Load Speed

1.4 sec in total

First Response

281 ms

Resources Loaded

963 ms

Page Rendered

172 ms

waywiser.rc.fas.harvard.edu screenshot

About Website

Visit waywiser.rc.fas.harvard.edu now to see the best up-to-date Waywiser Rc Fas Harvard content for United States and also check out these interesting facts you probably never knew about waywiser.rc.fas.harvard.edu

Since its inception in 1948, various Harvard departments and private benefactors have added material to the original nucleus of the Collection of Historical Scientific Instruments (CHSI), which now co...

Visit waywiser.rc.fas.harvard.edu

Key Findings

We analyzed Waywiser.rc.fas.harvard.edu page load time and found that the first response time was 281 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

waywiser.rc.fas.harvard.edu performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

48/100

10%

LCP (Largest Contentful Paint)

Value14.7 s

0/100

25%

SI (Speed Index)

Value5.9 s

47/100

10%

TBT (Total Blocking Time)

Value170 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

Network Requests Diagram

collections;jsessionid=BE36D903FA85EFD9BA2AFE3F7F047F0D

281 ms

bootstrap-skeleton.css

18 ms

emuseum-core.css

29 ms

skeleton.css

46 ms

font-awesome.min.css

34 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 80% of them (56 requests) were addressed to the original Waywiser.rc.fas.harvard.edu, 6% (4 requests) were made to Projects.iq.harvard.edu and 4% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (281 ms) belongs to the original domain Waywiser.rc.fas.harvard.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 68.1 kB (23%)

Content Size

301.8 kB

After Optimization

233.7 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Waywiser.rc.fas.harvard.edu main page is 301.8 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. 55% of websites need less resources to load. Images take 219.3 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 54.2 kB

  • Original 64.6 kB
  • After minification 43.1 kB
  • After compression 10.4 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. This page needs HTML code to be minified as it can gain 21.4 kB, which is 33% 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 54.2 kB or 84% of the original size.

Image Optimization

-6%

Potential reduce by 13.7 kB

  • Original 219.3 kB
  • After minification 205.6 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. Waywiser Rc Fas Harvard images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 244 B

  • Original 17.9 kB
  • After minification 17.9 kB
  • After compression 17.6 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 40 (62%)

Requests Now

65

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Waywiser Rc Fas Harvard. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

collections;jsessionid=BE36D903FA85EFD9BA2AFE3F7F047F0D

collections;jsessionid=BE36D903FA85EFD9BA2AFE3F7F047F0D

281 ms

bootstrap-skeleton.css

bootstrap-skeleton.css

18 ms

emuseum-core.css

emuseum-core.css

29 ms

skeleton.css

skeleton.css

46 ms

font-awesome.min.css

font-awesome.min.css

34 ms

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

36 ms

css_NtdB4k36mtdYkIkKrJpzlU9f_S4AukxJDgK0iwAFjes.css

css_NtdB4k36mtdYkIkKrJpzlU9f_S4AukxJDgK0iwAFjes.css

44 ms

css_UmVvsk0DnJ0SX4Va-W9XTRz4gqvectCTxk7EooL4UlU.css

css_UmVvsk0DnJ0SX4Va-W9XTRz4gqvectCTxk7EooL4UlU.css

44 ms

css_lg3JC00DV0YBsIL3ZU1PyFUO8arnSlxBFhVSMwkJi0Q.css

css_lg3JC00DV0YBsIL3ZU1PyFUO8arnSlxBFhVSMwkJi0Q.css

55 ms

css_uaIDKcYMUK5osSQXuirpr3ZleXtnnpBN-eiECm7N0M0.css

css_uaIDKcYMUK5osSQXuirpr3ZleXtnnpBN-eiECm7N0M0.css

48 ms

white.css

white.css

49 ms

responsive.white.css

responsive.white.css

61 ms

custom.css

custom.css

61 ms

print.css

print.css

60 ms

tapestry.css

tapestry.css

63 ms

exception-frame.css

exception-frame.css

64 ms

tapestry-console.css

tapestry-console.css

70 ms

tree.css

tree.css

74 ms

respond.min.js

respond.min.js

75 ms

js_cgjO1cR9EpO0BVXdJ1WoW_zBsTf5LchFQGc-6A90gGk.js

js_cgjO1cR9EpO0BVXdJ1WoW_zBsTf5LchFQGc-6A90gGk.js

99 ms

js_HnH6nipN3RHKRJKMNbQHFdKPPrHc1b2ct38QhTIYvVY.js

js_HnH6nipN3RHKRJKMNbQHFdKPPrHc1b2ct38QhTIYvVY.js

76 ms

MathJax.js

MathJax.js

27 ms

js_T2Mb88HBWcPW037036W4JCsYl-VJVyeHe_Datm8IH48.js

js_T2Mb88HBWcPW037036W4JCsYl-VJVyeHe_Datm8IH48.js

99 ms

js_CHkmHpjhwJFFKZTb86o4SwSDcZE7OS6HRf6-wvr_Scc.js

js_CHkmHpjhwJFFKZTb86o4SwSDcZE7OS6HRf6-wvr_Scc.js

98 ms

js_sftyP26foZxx0Sj65qVgjdEUH84COqXSNziV--hP_BE.js

js_sftyP26foZxx0Sj65qVgjdEUH84COqXSNziV--hP_BE.js

115 ms

js_fTAkW2arPREh1qTGQbXWb_xZppoVtMkhnSAAKQlcZ-k.js

js_fTAkW2arPREh1qTGQbXWb_xZppoVtMkhnSAAKQlcZ-k.js

115 ms

core.js

core.js

121 ms

element.js

element.js

45 ms

css

css

31 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

27 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

128 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

128 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

128 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

128 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

137 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

137 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

137 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

136 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

137 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

137 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

166 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

165 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

164 ms

resize%3Aformat%3Dthumbnail

resize%3Aformat%3Dthumbnail

163 ms

footer-top-gradient.png

footer-top-gradient.png

162 ms

hwpi_basesprite.png

hwpi_basesprite.png

162 ms

scholarbase-sprite.png

scholarbase-sprite.png

172 ms

font

font

126 ms

MathJax.js

MathJax.js

148 ms

ga.js

ga.js

119 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

90 ms

emuseum.js

emuseum.js

48 ms

__utm.gif

__utm.gif

18 ms

__utm.gif

__utm.gif

14 ms

chsi_logo_horizontal_silhouette_sm.jpg

chsi_logo_horizontal_silhouette_sm.jpg

136 ms

screen_shot_2016-03-30_at_7.32.41_am.png

screen_shot_2016-03-30_at_7.32.41_am.png

137 ms

screen_shot_2016-03-30_at_7.32.25_am.png

screen_shot_2016-03-30_at_7.32.25_am.png

140 ms

hmsc.hmnh_.png

hmsc.hmnh_.png

149 ms

harvard-logo.png

harvard-logo.png

50 ms

TeX-MML-AM_CHTML.js

TeX-MML-AM_CHTML.js

12 ms

ApplicationState.js

ApplicationState.js

34 ms

tab.js

tab.js

35 ms

modal.js

modal.js

34 ms

Events.js

Events.js

35 ms

css_dW-aNNrctRhQNc-KECjtQd0PxuW-h19IEum-TX2MeEk.css

css_dW-aNNrctRhQNc-KECjtQd0PxuW-h19IEum-TX2MeEk.css

20 ms

transition.js

transition.js

19 ms

IsoGrid.js

IsoGrid.js

27 ms

isotope.pkgd.min.js

isotope.pkgd.min.js

16 ms

imagesloaded.pkgd.min.js

imagesloaded.pkgd.min.js

15 ms

jquery-bridget.js

jquery-bridget.js

26 ms

Accessibility Review

waywiser.rc.fas.harvard.edu 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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

waywiser.rc.fas.harvard.edu 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

waywiser.rc.fas.harvard.edu 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

Links do not have descriptive text

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 Waywiser.rc.fas.harvard.edu 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 Waywiser.rc.fas.harvard.edu 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

waywiser.rc.fas.harvard.edu

Open Graph description is not detected on the main page of Waywiser Rc Fas Harvard. 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: