Tools & Wizards About Us
certified-tester.info screenshot

Report Summary

  • 90

    Performance

    Renders faster than
    91% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

certified-tester.info

ISTQB® Certified Tester, Testmanager, Zertifizierung

Page Load Speed

2.1 sec in total

First Response

335 ms

Resources Loaded

1.4 sec

Page Rendered

337 ms

certified-tester.info screenshot

About Website

Click here to check amazing Certified Tester content. Otherwise, check out these important facts you probably never knew about certified-tester.info

Das Zertifikat Certified Tester ist international verbreitet und anerkannt. So ist es weltweit möglich ist, eine einheitliche Anerkennung

Visit certified-tester.info

Key Findings

We analyzed Certified-tester.info page load time and found that the first response time was 335 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

certified-tester.info performance score

90

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

59/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value10 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.022

100/100

15%

TTI (Time to Interactive)

Value2.9 s

96/100

10%

Network Requests Diagram

certified-tester.info

335 ms

www.certified-tester.info

229 ms

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

122 ms

css_gArAUcbPOGS20Rj3CC1Ph_2J692LtLqNviaNUAmk_Wg.css

193 ms

css_XCUVW3VBLoY3eNnh_ATO3_BQvnLy15dPNXgbP_Rf6iU.css

193 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that all of those requests were addressed to Certified-tester.info and no external sources were called. The less responsive or slowest element that took the longest time to load (380 ms) belongs to the original domain Certified-tester.info.

Page Optimization Overview & Recommendations

Page size can be reduced by 29.9 kB (28%)

Content Size

105.8 kB

After Optimization

75.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Certified-tester.info main page is 105.8 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 42.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 20.2 kB

  • Original 26.1 kB
  • After minification 24.0 kB
  • After compression 5.9 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 20.2 kB or 77% of the original size.

Image Optimization

-10%

Potential reduce by 1.9 kB

  • Original 19.1 kB
  • After minification 17.1 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. Certified Tester images are well optimized though.

JavaScript Optimization

-17%

Potential reduce by 7.3 kB

  • Original 42.6 kB
  • After minification 42.6 kB
  • After compression 35.3 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 7.3 kB or 17% of the original size.

CSS Optimization

-3%

Potential reduce by 498 B

  • Original 18.0 kB
  • After minification 18.0 kB
  • After compression 17.5 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. Certified-tester.info has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (65%)

Requests Now

17

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Certified Tester. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

certified-tester.info

certified-tester.info

335 ms

www.certified-tester.info

www.certified-tester.info

229 ms

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

css_xE-rWrJf-fncB6ztZfd2huxqgxu4WO-qwma6Xer30m4.css

122 ms

css_gArAUcbPOGS20Rj3CC1Ph_2J692LtLqNviaNUAmk_Wg.css

css_gArAUcbPOGS20Rj3CC1Ph_2J692LtLqNviaNUAmk_Wg.css

193 ms

css_XCUVW3VBLoY3eNnh_ATO3_BQvnLy15dPNXgbP_Rf6iU.css

css_XCUVW3VBLoY3eNnh_ATO3_BQvnLy15dPNXgbP_Rf6iU.css

193 ms

css_5FqydqP2RG7rJh6gQLsaIThhwQftwFYVD993bYiN130.css

css_5FqydqP2RG7rJh6gQLsaIThhwQftwFYVD993bYiN130.css

191 ms

css_M6JZ8Sk6iXR1E0TxCZ3ZCx13afbf5-NiEwQ2W-DO8_M.css

css_M6JZ8Sk6iXR1E0TxCZ3ZCx13afbf5-NiEwQ2W-DO8_M.css

195 ms

css_qtRB3GIET97HuLxGTUSvgm8b2lqSR1B1N3jbpxazRAk.css

css_qtRB3GIET97HuLxGTUSvgm8b2lqSR1B1N3jbpxazRAk.css

192 ms

css_ZKrMUWhuaFc7Vexxs5GRFWAh__LGVptVAUg6S9Hb7YM.css

css_ZKrMUWhuaFc7Vexxs5GRFWAh__LGVptVAUg6S9Hb7YM.css

211 ms

css_MMwz_DHoJPLpLGM4vZSEsI6xp8E9asuG1BwOBN-sVcY.css

css_MMwz_DHoJPLpLGM4vZSEsI6xp8E9asuG1BwOBN-sVcY.css

283 ms

js_UWQINlriydSoeSiGQxToOUdv493zEa7dpsXC1OtYlZU.js

js_UWQINlriydSoeSiGQxToOUdv493zEa7dpsXC1OtYlZU.js

380 ms

js_TVTqjz8JHRb2KK9hlzuk0YsjzD013dKyYX_OTz-2VXU.js

js_TVTqjz8JHRb2KK9hlzuk0YsjzD013dKyYX_OTz-2VXU.js

285 ms

js_CHFBJlWfMZyHaVpdT5KQ39qqyBpvtU1M_6H4HhWC1Y8.js

js_CHFBJlWfMZyHaVpdT5KQ39qqyBpvtU1M_6H4HhWC1Y8.js

291 ms

js_-0vWBY-Q1y9Ge6sqM-AWvJ9CpL7vBEqwRyEiJgbDwNk.js

js_-0vWBY-Q1y9Ge6sqM-AWvJ9CpL7vBEqwRyEiJgbDwNk.js

291 ms

js_Y67oabxByxDJrdqxNSJyo2Ile1VILgr_ngLiy-bkFQ8.js

js_Y67oabxByxDJrdqxNSJyo2Ile1VILgr_ngLiy-bkFQ8.js

302 ms

diagonal-tight.png

diagonal-tight.png

242 ms

certified-tester.gif

certified-tester.gif

241 ms

certified-tester-advanced-level.png

certified-tester-advanced-level.png

243 ms

certified-tester-foundation-level_0.png

certified-tester-foundation-level_0.png

242 ms

Accessibility Review

certified-tester.info accessibility score

97

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.

Best Practices

certified-tester.info best practices score

75

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

certified-tester.info 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 Certified-tester.info 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 Certified-tester.info 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

certified-tester.info

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