Report Summary

  • 4

    Performance

    Renders faster than
    20% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 66

    SEO

    Google-friendlier than
    25% of websites

Page Load Speed

3.2 sec in total

First Response

849 ms

Resources Loaded

2.2 sec

Page Rendered

125 ms

bildarchiv.baw.de screenshot

About Website

Welcome to bildarchiv.baw.de homepage info - get ready to check Bildarchiv Baw best content for Germany right away, or after learning these important things about bildarchiv.baw.de

Visit bildarchiv.baw.de

Key Findings

We analyzed Bildarchiv.baw.de page load time and found that the first response time was 849 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

bildarchiv.baw.de performance score

4

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value27.0 s

0/100

25%

SI (Speed Index)

Value22.1 s

0/100

10%

TBT (Total Blocking Time)

Value5,310 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.384

27/100

15%

TTI (Time to Interactive)

Value26.7 s

0/100

10%

Network Requests Diagram

bildarchiv.baw.de

849 ms

main.css

468 ms

javascript

498 ms

javascript

869 ms

javascript

216 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that all of those requests were addressed to Bildarchiv.baw.de and no external sources were called. The less responsive or slowest element that took the longest time to load (869 ms) belongs to the original domain Bildarchiv.baw.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 507.1 kB (73%)

Content Size

695.3 kB

After Optimization

188.2 kB

In fact, the total size of Bildarchiv.baw.de main page is 695.3 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. 20% of websites need less resources to load. Javascripts take 498.1 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 42.5 kB

  • Original 51.3 kB
  • After minification 44.7 kB
  • After compression 8.8 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 6.6 kB, which is 13% 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 42.5 kB or 83% of the original size.

Image Optimization

-23%

Potential reduce by 10.4 kB

  • Original 46.0 kB
  • After minification 35.6 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, Bildarchiv Baw needs image optimization as it can save up to 10.4 kB or 23% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 368.8 kB

  • Original 498.1 kB
  • After minification 497.8 kB
  • After compression 129.3 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 368.8 kB or 74% of the original size.

CSS Optimization

-86%

Potential reduce by 85.5 kB

  • Original 99.9 kB
  • After minification 80.9 kB
  • After compression 14.5 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. Bildarchiv.baw.de needs all CSS files to be minified and compressed as it can save up to 85.5 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 16 (52%)

Requests Now

31

After Optimization

15

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bildarchiv Baw. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

bildarchiv.baw.de 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

High

button, link, and menuitem elements do not have accessible names.

High

[role] values are not valid

High

ARIA toggle fields do not have accessible names

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.

Best Practices

bildarchiv.baw.de 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

bildarchiv.baw.de SEO score

66

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

High

Page is blocked from indexing

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bildarchiv.baw.de can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Bildarchiv.baw.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

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