Tools & Wizards About Us
clio-online.de screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

clio-online.de

Clio-online - Fachportal Geschichte & Geschichtswissenschaft

Page Load Speed

2.5 sec in total

First Response

525 ms

Resources Loaded

1.7 sec

Page Rendered

226 ms

clio-online.de screenshot

About Website

Click here to check amazing Clio Online content for Germany. Otherwise, check out these important facts you probably never knew about clio-online.de

Clio-online ist ein Portal für die Geschichtswissenschaft und bietet Zugang zu Fachinformationen und Kommunikationsdienste, wie Suchmaschinen und Datenbanken zu Rezensionen, Zeitschriften, Publikation...

Visit clio-online.de

Key Findings

We analyzed Clio-online.de page load time and found that the first response time was 525 ms and then it took 2 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

clio-online.de performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

55/100

25%

SI (Speed Index)

Value6.6 s

37/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.123

83/100

15%

TTI (Time to Interactive)

Value6.9 s

54/100

10%

Network Requests Diagram

clio-online.de

525 ms

align.module.css

107 ms

fieldgroup.module.css

208 ms

container-inline.module.css

209 ms

clearfix.module.css

210 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that all of those requests were addressed to Clio-online.de and no external sources were called. The less responsive or slowest element that took the longest time to load (871 ms) belongs to the original domain Clio-online.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 110.8 kB (33%)

Content Size

334.3 kB

After Optimization

223.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Clio-online.de main page is 334.3 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. 40% of websites need less resources to load. Javascripts take 231.2 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 21.8 kB

  • Original 29.4 kB
  • After minification 29.0 kB
  • After compression 7.6 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. 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 21.8 kB or 74% of the original size.

Image Optimization

-17%

Potential reduce by 1.8 kB

  • Original 10.5 kB
  • After minification 8.6 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. Obviously, Clio Online needs image optimization as it can save up to 1.8 kB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-27%

Potential reduce by 62.1 kB

  • Original 231.2 kB
  • After minification 230.9 kB
  • After compression 169.1 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 62.1 kB or 27% of the original size.

CSS Optimization

-40%

Potential reduce by 25.1 kB

  • Original 63.2 kB
  • After minification 60.2 kB
  • After compression 38.0 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. Clio-online.de needs all CSS files to be minified and compressed as it can save up to 25.1 kB or 40% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (92%)

Requests Now

52

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Clio Online. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 30 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

clio-online.de

clio-online.de

525 ms

align.module.css

align.module.css

107 ms

fieldgroup.module.css

fieldgroup.module.css

208 ms

container-inline.module.css

container-inline.module.css

209 ms

clearfix.module.css

clearfix.module.css

210 ms

details.module.css

details.module.css

213 ms

hidden.module.css

hidden.module.css

212 ms

item-list.module.css

item-list.module.css

215 ms

js.module.css

js.module.css

312 ms

nowrap.module.css

nowrap.module.css

313 ms

position-container.module.css

position-container.module.css

314 ms

progress.module.css

progress.module.css

316 ms

reset-appearance.module.css

reset-appearance.module.css

320 ms

resize.module.css

resize.module.css

321 ms

sticky-header.module.css

sticky-header.module.css

417 ms

system-status-counter.css

system-status-counter.css

418 ms

system-status-report-counters.css

system-status-report-counters.css

419 ms

system-status-report-general-info.css

system-status-report-general-info.css

420 ms

tablesort.module.css

tablesort.module.css

427 ms

tree-child.module.css

tree-child.module.css

429 ms

views.module.css

views.module.css

521 ms

styles.css

styles.css

522 ms

postload.css

postload.css

524 ms

bootstrap.css

bootstrap.css

628 ms

fonts.css

fonts.css

533 ms

fontawesome.min.css

fontawesome.min.css

537 ms

screen.css

screen.css

625 ms

print.css

print.css

627 ms

clio.css

clio.css

634 ms

clio-article-type.css

clio-article-type.css

639 ms

guides.css

guides.css

643 ms

jquery.min.js

jquery.min.js

831 ms

underscore-min.js

underscore-min.js

732 ms

drupalSettingsLoader.js

drupalSettingsLoader.js

732 ms

de_AIMAliLsbHtFbDjsJfM0RPGEssn4GUM2ST4vy_tgxvA.js

de_AIMAliLsbHtFbDjsJfM0RPGEssn4GUM2ST4vy_tgxvA.js

732 ms

drupal.js

drupal.js

744 ms

drupal.init.js

drupal.init.js

747 ms

hfn_functions.js

hfn_functions.js

759 ms

jcComment.min.js

jcComment.min.js

656 ms

urchin.js

urchin.js

657 ms

seealso.js

seealso.js

663 ms

seealso_hfn.js

seealso_hfn.js

662 ms

drupal.bootstrap.js

drupal.bootstrap.js

735 ms

attributes.js

attributes.js

740 ms

theme.js

theme.js

644 ms

jquery-2.2.4.min.js

jquery-2.2.4.min.js

751 ms

jquery-ui.min.js

jquery-ui.min.js

871 ms

bootstrap.min.js

bootstrap.min.js

658 ms

hfn-bootstrap.js

hfn-bootstrap.js

732 ms

popover.js

popover.js

739 ms

tooltip.js

tooltip.js

643 ms

logo.png

logo.png

663 ms

logo_menu.png

logo_menu.png

736 ms

graublauweb-webfont.woff

graublauweb-webfont.woff

480 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

482 ms

Accessibility Review

clio-online.de accessibility score

81

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

clio-online.de 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

clio-online.de SEO score

83

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

clio-online.de

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