Tools & Wizards About Us
deutschefotothek.de screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    69% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

deutschefotothek.de

Deutsche Fotothek

Page Load Speed

3.9 sec in total

First Response

294 ms

Resources Loaded

3.1 sec

Page Rendered

568 ms

deutschefotothek.de screenshot

About Website

Click here to check amazing Deutsche Fotothek content for Germany. Otherwise, check out these important facts you probably never knew about deutschefotothek.de

Mit dem Archiv der Fotografen bietet die Deutsche Fotothek ein mehr als zwei Millionen Bilder umfassendes Schaufenster für die Werke bedeutender deutscher oder in Deutschland arbeitender Fotografen — ...

Visit deutschefotothek.de

Key Findings

We analyzed Deutschefotothek.de page load time and found that the first response time was 294 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

deutschefotothek.de performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value150 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.088

92/100

15%

TTI (Time to Interactive)

Value7.4 s

49/100

10%

Network Requests Diagram

deutschefotothek.de

294 ms

www.deutschefotothek.de

627 ms

jquery-ui-1.8.6.custom.css

110 ms

dfStyles_Relaunch_100_Jahre_DF.css

310 ms

jquery-ui.css

297 ms

Our browser made a total of 69 requests to load all elements on the main page. We found that 96% of them (66 requests) were addressed to the original Deutschefotothek.de, 4% (3 requests) were made to Piwik.slub-dresden.de. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Deutschefotothek.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 48.7 kB (2%)

Content Size

2.9 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Deutschefotothek.de 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. 50% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 40.5 kB

  • Original 50.3 kB
  • After minification 49.1 kB
  • After compression 9.8 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. 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 40.5 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 2.4 MB
  • After minification 2.4 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. Deutsche Fotothek images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 6.6 kB

  • Original 361.1 kB
  • After minification 361.1 kB
  • After compression 354.5 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.

CSS Optimization

-2%

Potential reduce by 1.6 kB

  • Original 68.6 kB
  • After minification 68.6 kB
  • After compression 67.0 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. Deutschefotothek.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (50%)

Requests Now

58

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Deutsche Fotothek. 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 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

deutschefotothek.de

deutschefotothek.de

294 ms

www.deutschefotothek.de

www.deutschefotothek.de

627 ms

jquery-ui-1.8.6.custom.css

jquery-ui-1.8.6.custom.css

110 ms

dfStyles_Relaunch_100_Jahre_DF.css

dfStyles_Relaunch_100_Jahre_DF.css

310 ms

jquery-ui.css

jquery-ui.css

297 ms

classic-min.css

classic-min.css

302 ms

ETESuggest.css

ETESuggest.css

302 ms

ol.css

ol.css

303 ms

font-awesome.min.css

font-awesome.min.css

300 ms

materialdesignicons.min.css

materialdesignicons.min.css

515 ms

style.min.css

style.min.css

413 ms

jquery.min.js

jquery.min.js

526 ms

jquery-migrate-3.4.1.min.js

jquery-migrate-3.4.1.min.js

415 ms

jquery-ui.min.js

jquery-ui.min.js

636 ms

jquery-plugin-formvalidator.js

jquery-plugin-formvalidator.js

433 ms

jquery-plugin-maphilight.min.js

jquery-plugin-maphilight.min.js

537 ms

jQAllRangeSliders-min.js

jQAllRangeSliders-min.js

537 ms

jstree.min.js

jstree.min.js

554 ms

ETESuggest.js

ETESuggest.js

623 ms

ol.js

ol.js

894 ms

ETEOpenLayers.js

ETEOpenLayers.js

632 ms

df.ol.css

df.ol.css

660 ms

design_Relaunch_100_Jahre_DF.js

design_Relaunch_100_Jahre_DF.js

662 ms

ssy_Relaunch_100_Jahre_DF.js

ssy_Relaunch_100_Jahre_DF.js

726 ms

headerLines.svg

headerLines.svg

109 ms

headerLogo.svg

headerLogo.svg

113 ms

icons.svg

icons.svg

110 ms

rudi-schirm2.jpg%202600w

rudi-schirm2.jpg%202600w

107 ms

df100arrowWhite.svg

df100arrowWhite.svg

105 ms

df100logo.png

df100logo.png

200 ms

df100arrowMoss.svg

df100arrowMoss.svg

219 ms

flagIcon.svg

flagIcon.svg

212 ms

dfSeparator.svg

dfSeparator.svg

213 ms

home-alvensleben-100.jpg

home-alvensleben-100.jpg

402 ms

home-kotzsch-100.jpg

home-kotzsch-100.jpg

310 ms

home-lamer-100.jpg

home-lamer-100.jpg

494 ms

adf-intro-sommer.jpg

adf-intro-sommer.jpg

319 ms

home-gorny-100.jpg

home-gorny-100.jpg

599 ms

home-winter-100.jpg

home-winter-100.jpg

512 ms

home-metselaar-100.jpg

home-metselaar-100.jpg

513 ms

home-krems-100.jpg

home-krems-100.jpg

517 ms

classic-orte.jpg

classic-orte.jpg

603 ms

classic-kunst2.jpg

classic-kunst2.jpg

602 ms

classic-architektur2.jpg

classic-architektur2.jpg

617 ms

classic-menschen.jpg

classic-menschen.jpg

616 ms

weltsichten-afrika-expedition-1931-32.jpg

weltsichten-afrika-expedition-1931-32.jpg

620 ms

cva-stories-hello.jpg

cva-stories-hello.jpg

708 ms

Projekte-form.jpg

Projekte-form.jpg

706 ms

home-sorben.jpg

home-sorben.jpg

708 ms

home-kartenforum.jpg

home-kartenforum.jpg

719 ms

home-architekturzeichnungen.jpg

home-architekturzeichnungen.jpg

718 ms

bunt-home.jpg

bunt-home.jpg

829 ms

banner-budapest.jpg

banner-budapest.jpg

1194 ms

df100-veranstaltungen-home.jpg

df100-veranstaltungen-home.jpg

909 ms

footerLines.svg

footerLines.svg

814 ms

logo-aps.svg

logo-aps.svg

873 ms

logo-slub.svg

logo-slub.svg

875 ms

piwik.js

piwik.js

777 ms

VistaSansSOT-Book.woff

VistaSansSOT-Book.woff

889 ms

IBMPlexSansCondensed-Medium.woff

IBMPlexSansCondensed-Medium.woff

894 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

1005 ms

materialdesignicons-webfont.woff

materialdesignicons-webfont.woff

941 ms

VistaSansSOT-Bold.woff

VistaSansSOT-Bold.woff

913 ms

VistaSlabSOT-Regular.woff

VistaSlabSOT-Regular.woff

939 ms

VistaSlabSOT-Bold.woff

VistaSlabSOT-Bold.woff

936 ms

VistaSansSOT-Light.woff

VistaSansSOT-Light.woff

1017 ms

piwik.php

piwik.php

256 ms

matomo.php

matomo.php

357 ms

ui-bg_flat_75_ffffff_40x100.png

ui-bg_flat_75_ffffff_40x100.png

278 ms

Accessibility Review

deutschefotothek.de accessibility score

80

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

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.

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

deutschefotothek.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

Missing source maps for large first-party JavaScript

SEO Factors

deutschefotothek.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

Page is blocked from indexing

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

    N/A

  • Language Claimed

    EN

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Deutschefotothek.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), while the claimed language is English. Our system also found out that Deutschefotothek.de main page’s claimed encoding is windows-1252. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

deutschefotothek.de

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