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passiv.de screenshot

Report Summary

  • 75

    Performance

    Renders faster than
    83% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

passiv.de

Passivhaus Institut

Page Load Speed

2.9 sec in total

First Response

302 ms

Resources Loaded

2.1 sec

Page Rendered

498 ms

passiv.de screenshot

About Website

Welcome to passiv.de homepage info - get ready to check Passiv best content for Russia right away, or after learning these important things about passiv.de

Passivhaus Institut

Visit passiv.de

Key Findings

We analyzed Passiv.de page load time and found that the first response time was 302 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

passiv.de performance score

75

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value3.6 s

60/100

25%

SI (Speed Index)

Value4.3 s

75/100

10%

TBT (Total Blocking Time)

Value210 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.173

69/100

15%

TTI (Time to Interactive)

Value4.3 s

84/100

10%

Network Requests Diagram

passiv.de

302 ms

hauptseite.css

94 ms

flexslider.css

186 ms

jquery.min.js

288 ms

divs.css

97 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 81% of them (54 requests) were addressed to the original Passiv.de, 13% (9 requests) were made to Google.com and 4% (3 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Passiv.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 333.2 kB (23%)

Content Size

1.5 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Passiv.de main page is 1.5 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. 40% of websites need less resources to load. Images take 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 53.7 kB

  • Original 66.4 kB
  • After minification 55.9 kB
  • After compression 12.8 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 10.6 kB, which is 16% 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 53.7 kB or 81% of the original size.

Image Optimization

-14%

Potential reduce by 165.5 kB

  • Original 1.2 MB
  • After minification 1.0 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. Obviously, Passiv needs image optimization as it can save up to 165.5 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-48%

Potential reduce by 98.7 kB

  • Original 205.1 kB
  • After minification 205.1 kB
  • After compression 106.4 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 98.7 kB or 48% of the original size.

CSS Optimization

-85%

Potential reduce by 15.4 kB

  • Original 18.2 kB
  • After minification 9.3 kB
  • After compression 2.7 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. Passiv.de needs all CSS files to be minified and compressed as it can save up to 15.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (19%)

Requests Now

63

After Optimization

51

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Passiv. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

passiv.de

passiv.de

302 ms

hauptseite.css

hauptseite.css

94 ms

flexslider.css

flexslider.css

186 ms

jquery.min.js

jquery.min.js

288 ms

divs.css

divs.css

97 ms

menue.css

menue.css

184 ms

druck.css

druck.css

185 ms

schrift.css

schrift.css

186 ms

styles.css

styles.css

187 ms

237 ms

extli.png

extli.png

295 ms

hg_menue.png

hg_menue.png

281 ms

logo_phi_de.png

logo_phi_de.png

102 ms

dpfeil-r.png

dpfeil-r.png

99 ms

roter_balken.jpg

roter_balken.jpg

201 ms

darmstadtium_web.jpg

darmstadtium_web.jpg

189 ms

Alt-und-Weizsaecker_web.jpg

Alt-und-Weizsaecker_web.jpg

283 ms

Passivhaus_Griechenland_web.jpg

Passivhaus_Griechenland_web.jpg

379 ms

51_Protokollband_Cover_web.jpg

51_Protokollband_Cover_web.jpg

283 ms

ZWuV_web.JPG

ZWuV_web.JPG

568 ms

Bambados_1_web.JPG

Bambados_1_web.JPG

374 ms

EnerPHit_Innsbruck_4_web.jpg

EnerPHit_Innsbruck_4_web.jpg

378 ms

Cover_PB_50_web.jpg

Cover_PB_50_web.jpg

379 ms

House_of_Energy_Airoptima_web.jpg

House_of_Energy_Airoptima_web.jpg

377 ms

Passivhaus-Klassen_web.jpg

Passivhaus-Klassen_web.jpg

471 ms

Heidelberg-Bahnstadt_Residential_Buildings_klein.jpg

Heidelberg-Bahnstadt_Residential_Buildings_klein.jpg

477 ms

PHPP9-Cover_DE_web.jpg

PHPP9-Cover_DE_web.jpg

478 ms

Award-Buch_Web.jpg

Award-Buch_Web.jpg

479 ms

Passivhaus_Voegelebichl_1_web.jpg

Passivhaus_Voegelebichl_1_web.jpg

474 ms

designPH_website_dunkler_klein.jpg

designPH_website_dunkler_klein.jpg

559 ms

Twitter_logo_blue.png

Twitter_logo_blue.png

766 ms

YouTube-logo-full_color.png

YouTube-logo-full_color.png

572 ms

FB-f-Logo__blue_1024.png

FB-f-Logo__blue_1024.png

572 ms

white-flickr.png

white-flickr.png

572 ms

InBug-60px-R.png

InBug-60px-R.png

650 ms

logo_passivhaustagung2016_rz_DE_180.jpg

logo_passivhaustagung2016_rz_DE_180.jpg

658 ms

extli_m.png

extli_m.png

669 ms

TdPH_Streifen_DE_180.jpg

TdPH_Streifen_DE_180.jpg

666 ms

siegel_komponenten_dreifach_staffel.jpg

siegel_komponenten_dreifach_staffel.jpg

1159 ms

logo_europhit_180.jpg

logo_europhit_180.jpg

741 ms

logo_built2spec_180.jpg

logo_built2spec_180.jpg

752 ms

logo_passreg.png

logo_passreg.png

758 ms

logo_sinfonia_180.JPG

logo_sinfonia_180.JPG

760 ms

logo_designPH_82.jpg

logo_designPH_82.jpg

831 ms

logo_phpp_180.jpg

logo_phpp_180.jpg

844 ms

siegel_zertifiziertes_ph_classic_de.jpg

siegel_zertifiziertes_ph_classic_de.jpg

849 ms

cse.js

cse.js

16 ms

piwik.js

piwik.js

477 ms

cse.js

cse.js

102 ms

siegel_enerphit_classic_de.jpg

siegel_enerphit_classic_de.jpg

760 ms

vorlage_siegel_Komponenten_fenster_A+_kuehlgemaessigt82_82.jpg

vorlage_siegel_Komponenten_fenster_A+_kuehlgemaessigt82_82.jpg

763 ms

jsapi

jsapi

35 ms

default+de.css

default+de.css

22 ms

default.css

default.css

21 ms

default+de.I.js

default+de.I.js

20 ms

plakette_de.jpg

plakette_de.jpg

834 ms

default.css

default.css

37 ms

pb50.jpg

pb50.jpg

836 ms

async-ads.js

async-ads.js

66 ms

google_custom_search_watermark.gif

google_custom_search_watermark.gif

26 ms

small-logo.png

small-logo.png

61 ms

clear.gif

clear.gif

12 ms

nav_logo114.png

nav_logo114.png

4 ms

pb42.jpg

pb42.jpg

670 ms

enerphit_planer-hb.png

enerphit_planer-hb.png

759 ms

pb44.jpg

pb44.jpg

1109 ms

klimazonen_d.png

klimazonen_d.png

849 ms

Accessibility Review

passiv.de accessibility score

79

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

passiv.de best practices score

50

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

passiv.de SEO score

62

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

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 Passiv.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 Passiv.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

passiv.de

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