Tools & Wizards About Us
dr-ostermann.de screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

dr-ostermann.de

Zahnarzt in Hannover | Zahnarztpraxis Dr. Ostermann

Page Load Speed

4.9 sec in total

First Response

436 ms

Resources Loaded

4.1 sec

Page Rendered

353 ms

dr-ostermann.de screenshot

About Website

Visit dr-ostermann.de now to see the best up-to-date Dr Ostermann content and also check out these interesting facts you probably never knew about dr-ostermann.de

Freude am Zahn! Unsere Zahnarztpraxis bietet ✔ Prophylaxe ✔ Implantologie ✔ Prothetik ✔ Parodontologie ✔ Endodontologie ✔ Kinderzahnheilkunde.

Visit dr-ostermann.de

Key Findings

We analyzed Dr-ostermann.de page load time and found that the first response time was 436 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

dr-ostermann.de performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value5.6 s

53/100

10%

TBT (Total Blocking Time)

Value1,130 ms

22/100

30%

CLS (Cumulative Layout Shift)

Value0.651

9/100

15%

TTI (Time to Interactive)

Value3.7 s

90/100

10%

Network Requests Diagram

www.dr-ostermann.de

436 ms

smoothscroll.js

368 ms

website.css

85 ms

modernizr.js

165 ms

jquery.js

252 ms

Our browser made a total of 88 requests to load all elements on the main page. We found that 32% of them (28 requests) were addressed to the original Dr-ostermann.de, 42% (37 requests) were made to Maps.googleapis.com and 10% (9 requests) were made to Maps.gstatic.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Dr-ostermann.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 730.1 kB (29%)

Content Size

2.5 MB

After Optimization

1.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dr-ostermann.de main page is 2.5 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. 65% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 44.2 kB

  • Original 54.6 kB
  • After minification 50.5 kB
  • After compression 10.4 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 44.2 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 14.1 kB

  • Original 1.5 MB
  • After minification 1.5 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. Dr Ostermann images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 400.7 kB

  • Original 621.1 kB
  • After minification 614.5 kB
  • After compression 220.4 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 400.7 kB or 65% of the original size.

CSS Optimization

-87%

Potential reduce by 271.1 kB

  • Original 310.0 kB
  • After minification 250.1 kB
  • After compression 38.9 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. Dr-ostermann.de needs all CSS files to be minified and compressed as it can save up to 271.1 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (33%)

Requests Now

76

After Optimization

51

  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dr Ostermann. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.dr-ostermann.de

www.dr-ostermann.de

436 ms

smoothscroll.js

smoothscroll.js

368 ms

website.css

website.css

85 ms

modernizr.js

modernizr.js

165 ms

jquery.js

jquery.js

252 ms

touch-events.js

touch-events.js

170 ms

btn-nav.js

btn-nav.js

246 ms

image-loader.js

image-loader.js

254 ms

slideshow.js

slideshow.js

329 ms

slider.js

slider.js

338 ms

monotracker.js

monotracker.js

336 ms

js

js

43 ms

smoothscroll.js

smoothscroll.js

291 ms

layout.css

layout.css

169 ms

css

css

25 ms

layout.css

layout.css

639 ms

LogoOstermann0_srcset-large.png

LogoOstermann0_srcset-large.png

251 ms

DrOstermannschmal_srcset-small.jpg

DrOstermannschmal_srcset-small.jpg

165 ms

doktorostermann069_srcset-small.jpg

doktorostermann069_srcset-small.jpg

169 ms

SylviaSchulzIMG4618bearbeitetbearbeitet1_srcset-small.jpg

SylviaSchulzIMG4618bearbeitetbearbeitet1_srcset-small.jpg

171 ms

WartenDrOstermann_srcset-small.jpg

WartenDrOstermann_srcset-small.jpg

328 ms

DrOstermannFlur2_srcset-small.jpg

DrOstermannFlur2_srcset-small.jpg

337 ms

ostermannstart02_srcset-small.jpg

ostermannstart02_srcset-small.jpg

258 ms

ostermannstart03_srcset-small.jpg

ostermannstart03_srcset-small.jpg

338 ms

uYKcPVoh6c5R0NpdEY5A-Q.woff

uYKcPVoh6c5R0NpdEY5A-Q.woff

25 ms

DXI1ORHCpsQm3Vp6mXoaTRsxEYwM7FgeyaSgU71cLG0.woff

DXI1ORHCpsQm3Vp6mXoaTRsxEYwM7FgeyaSgU71cLG0.woff

25 ms

MTP_ySUJH_bn48VBG8sNShsxEYwM7FgeyaSgU71cLG0.woff

MTP_ySUJH_bn48VBG8sNShsxEYwM7FgeyaSgU71cLG0.woff

49 ms

k3k702ZOKiLJc3WVjuplzBsxEYwM7FgeyaSgU71cLG0.woff

k3k702ZOKiLJc3WVjuplzBsxEYwM7FgeyaSgU71cLG0.woff

49 ms

fontello.woff

fontello.woff

426 ms

analytics.js

analytics.js

20 ms

DrOstermannschmal_srcset-large.jpg

DrOstermannschmal_srcset-large.jpg

1083 ms

doktorostermann069_srcset-large.jpg

doktorostermann069_srcset-large.jpg

360 ms

SylviaSchulzIMG4618bearbeitetbearbeitet1_srcset-large.jpg

SylviaSchulzIMG4618bearbeitetbearbeitet1_srcset-large.jpg

1089 ms

WartenDrOstermann_srcset-large.jpg

WartenDrOstermann_srcset-large.jpg

949 ms

DrOstermannFlur2_srcset-large.jpg

DrOstermannFlur2_srcset-large.jpg

1007 ms

ostermannstart02_srcset-large.jpg

ostermannstart02_srcset-large.jpg

1164 ms

ostermannstart03_srcset-large.jpg

ostermannstart03_srcset-large.jpg

1500 ms

collect

collect

17 ms

common.js

common.js

8 ms

map.js

map.js

22 ms

util.js

util.js

49 ms

geocoder.js

geocoder.js

47 ms

onion.js

onion.js

18 ms

openhand_8_8.cur

openhand_8_8.cur

62 ms

controls.js

controls.js

24 ms

ViewportInfoService.GetViewportInfo

ViewportInfoService.GetViewportInfo

88 ms

stats.js

stats.js

17 ms

AuthenticationService.Authenticate

AuthenticationService.Authenticate

273 ms

GeocodeService.Search

GeocodeService.Search

69 ms

css

css

84 ms

transparent.png

transparent.png

21 ms

marker.js

marker.js

14 ms

google4.png

google4.png

21 ms

mapcnt6.png

mapcnt6.png

46 ms

sv5.png

sv5.png

59 ms

tmapctrl.png

tmapctrl.png

50 ms

cb_scout5.png

cb_scout5.png

56 ms

tmapctrl4.png

tmapctrl4.png

49 ms

google_white5.png

google_white5.png

54 ms

vt

vt

27 ms

vt

vt

26 ms

vt

vt

26 ms

vt

vt

26 ms

vt

vt

29 ms

vt

vt

27 ms

vt

vt

28 ms

vt

vt

33 ms

vt

vt

27 ms

vt

vt

29 ms

vt

vt

36 ms

vt

vt

37 ms

vt

vt

28 ms

vt

vt

37 ms

vt

vt

31 ms

vt

vt

32 ms

vt

vt

43 ms

vt

vt

91 ms

vt

vt

46 ms

vt

vt

60 ms

vt

vt

60 ms

vt

vt

65 ms

vt

vt

65 ms

vt

vt

94 ms

vt

vt

88 ms

2UX7WLTfW3W8TclTUvlFyQ.woff

2UX7WLTfW3W8TclTUvlFyQ.woff

20 ms

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff

32 ms

Hgo13k-tfSpn0qi1SFdUfT8E0i7KZn-EPnyo3HZu7kw.woff

Hgo13k-tfSpn0qi1SFdUfT8E0i7KZn-EPnyo3HZu7kw.woff

36 ms

d-6IYplOFocCacKzxwXSOD8E0i7KZn-EPnyo3HZu7kw.woff

d-6IYplOFocCacKzxwXSOD8E0i7KZn-EPnyo3HZu7kw.woff

45 ms

Accessibility Review

dr-ostermann.de accessibility score

88

Accessibility Issues

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.

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

<frame> or <iframe> elements do not have a title

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

dr-ostermann.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

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

dr-ostermann.de SEO score

100

Search Engine Optimization Advices

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 Dr-ostermann.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 Dr-ostermann.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

dr-ostermann.de

Open Graph data is detected on the main page of Dr Ostermann. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: