Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 87% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

Page Load Speed

2.1 sec in total

First Response

495 ms

Resources Loaded

1.5 sec

Page Rendered

124 ms

openbiblio.eu screenshot

About Website

Welcome to openbiblio.eu homepage info - get ready to check Openbiblio best content for Germany right away, or after learning these important things about openbiblio.eu

Visit openbiblio.eu

Key Findings

We analyzed Openbiblio.eu page load time and found that the first response time was 495 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

openbiblio.eu performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value3.8 s

84/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.2 s

99/100

10%

Network Requests Diagram

openbiblio.eu

495 ms

wp-emoji-release.min.js

319 ms

css

69 ms

dashicons.min.css

432 ms

admin-bar.min.css

330 ms

Our browser made a total of 18 requests to load all elements on the main page. We found that 72% of them (13 requests) were addressed to the original Openbiblio.eu, 17% (3 requests) were made to Fonts.gstatic.com and 6% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (758 ms) belongs to the original domain Openbiblio.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 195.7 kB (54%)

Content Size

365.0 kB

After Optimization

169.3 kB

In fact, the total size of Openbiblio.eu main page is 365.0 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. 20% of websites need less resources to load. Javascripts take 164.1 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 6.4 kB

  • Original 9.3 kB
  • After minification 8.7 kB
  • After compression 3.0 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 6.4 kB or 68% of the original size.

Image Optimization

-6%

Potential reduce by 4.4 kB

  • Original 77.6 kB
  • After minification 73.2 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. Openbiblio images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 110.1 kB

  • Original 164.1 kB
  • After minification 162.0 kB
  • After compression 54.0 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 110.1 kB or 67% of the original size.

CSS Optimization

-66%

Potential reduce by 74.9 kB

  • Original 114.0 kB
  • After minification 86.6 kB
  • After compression 39.1 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. Openbiblio.eu needs all CSS files to be minified and compressed as it can save up to 74.9 kB or 66% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (77%)

Requests Now

13

After Optimization

3

The browser has sent 13 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Openbiblio. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

openbiblio.eu accessibility score

95

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

Document doesn't have a <title> element

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

openbiblio.eu 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

SEO Factors

openbiblio.eu SEO score

85

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

Document doesn't have a <title> element

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

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