Ethz.ch - SEO Checker - Website Review

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Web Frameworks

56 ethz.ch Last Updated: 10 months

Success 62% of passed verification steps

Warning 15% of total warning

Errors 23% of total errors, require fast action

Mobile

Performance Desktop Score 89%

Best Practices Desktop Score 85%

SEO Desktop Score 89%

Progressive Web App Desktop Score 31%

Performance Mobile Score 56%

Best Practices Mobile Score 85%

SEO Mobile Score 87%

Progressive Web App Mobile Score 33%

Page Authority Authority 60%

Domain Authority Domain Authority 83%

Moz Rank 6.0/10

Bounce Rate Rate 0%

Charset Encoding

Great, language/character encoding is specified: UTF-8

Title Tag 34 Characters

ETH ZÜRICH - HOMEPAGE | ETH ZÜRICH

Meta Description 0 Characters

NO DATA

Effective URL 23 Characters

https://ethz.ch/de.html

Excerpt Page content

ETH Zürich - Homepage | ETH Zürich Startseite Navigation Inhalt ...

Keywords Cloud Density

zürich7 übersicht7 weitere4 campus4 menü3 sich3 future3 über3 energie3 braucht3

Keyword Consistency Keyword density is one of the main terms in SEO

Keyword	Freq	Title	Desc	Domain	H1	H2
zürich	7
übersicht	7
weitere	4
campus	4
menü	3
sich	3
future	3
über	3
energie	3
braucht	3

Google Preview Your look like this in google search result

ETH ZÜRICH - HOMEPAGE | ETH ZÜRICH

https://ethz.ch/de.html

ETH Zürich - Homepage | ETH Zürich Startseite Navigation Inhalt ...

Robots.txt File No Found

http://ethz.ch/robots.txt

Sitemap.xml File Detected

http://ethz.ch/sitemap.xml

Page Size Code & Text Ratio

Document Size: ~72.29 KB

Code Size: ~37 KB

Text Size: ~35.3 KB Ratio: 48.82%

Estimation Traffic and Earnings

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Desktop

Total Blocking Time 460 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.

JavaScript execution time 1.0 s

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this

Server Backend Latencies 0 ms

Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance

Defer offscreen images Potential savings of 507 KB

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive

Properly size images Potential savings of 687 KB

Serve images that are appropriately-sized to save cellular data and improve load time

Speed Index 0.8 s

Speed Index shows how quickly the contents of a page are visibly populated

First CPU Idle 2.1 s

First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).

Avoids enormous network payloads Total size was 1,554 KB

Large network payloads cost users real money and are highly correlated with long load times

Minimizes main-thread work 1.5 s

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this

First Contentful Paint 0.7 s

First Contentful Paint marks the time at which the first text or image is painted

Includes front-end JavaScript libraries with known security vulnerabilities 2 vulnerabilities detected

Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

Avoid chaining critical requests 3 chains found

The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load

Avoid an excessive DOM size 6,236 elements

A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)

Minify JavaScript Potential savings of 111 KB

Minifying JavaScript files can reduce payload sizes and script parse time

First Meaningful Paint 0.9 s

First Meaningful Paint measures when the primary content of a page is visible

Keep request counts low and transfer sizes small 50 requests • 1,554 KB

To set budgets for the quantity and size of page resources, add a budget.json file

Serve static assets with an efficient cache policy 31 resources found

A long cache lifetime can speed up repeat visits to your page

Max Potential First Input Delay 930 ms

The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task

Time to Interactive 3.4 s

Time to interactive is the amount of time it takes for the page to become fully interactive

Network Round Trip Times 0 ms

Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance

Page load is not fast enough on mobile networks Interactive on simulated mobile network at 13.3 s

A fast page load over a cellular network ensures a good mobile user experience

Estimated Input Latency 360 ms

Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy

Minify CSS Potential savings of 13 KB

Minifying CSS files can reduce network payload sizes

Remove unused CSS Potential savings of 59 KB

Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity

Serve images in next-gen formats Potential savings of 84 KB

Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption

Server response times are low (TTFB) Root document took 110 ms

Time To First Byte identifies the time at which your server sends a response

Eliminate render-blocking resources Potential savings of 430 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles

Minimize third-party usage Third-party code blocked the main thread for 0 ms

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading

Mobile

Server response times are low (TTFB) Root document took 130 ms

Time To First Byte identifies the time at which your server sends a response

Eliminate render-blocking resources Potential savings of 1,980 ms

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles

Minimize third-party usage Third-party code blocked the main thread for 10 ms

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading

Total Blocking Time 940 ms

Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.

Reduce JavaScript execution time 2.0 s

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this

Defer offscreen images Potential savings of 724 KB

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive

Server Backend Latencies 0 ms

Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance

Properly size images Potential savings of 452 KB

Serve images that are appropriately-sized to save cellular data and improve load time

Speed Index 3.1 s

Speed Index shows how quickly the contents of a page are visibly populated

First CPU Idle 7.0 s

First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).

Avoids enormous network payloads Total size was 1,522 KB

Large network payloads cost users real money and are highly correlated with long load times

Minimize main-thread work 3.3 s

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this

First Contentful Paint 2.9 s

First Contentful Paint marks the time at which the first text or image is painted

Includes front-end JavaScript libraries with known security vulnerabilities 2 vulnerabilities detected

Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers

Avoid chaining critical requests 3 chains found

Avoid an excessive DOM size 6,236 elements

Minify JavaScript Potential savings of 111 KB

Minifying JavaScript files can reduce payload sizes and script parse time

First Meaningful Paint 3.5 s

First Meaningful Paint measures when the primary content of a page is visible

Keep request counts low and transfer sizes small 50 requests • 1,522 KB

To set budgets for the quantity and size of page resources, add a budget.json file

Serve static assets with an efficient cache policy 31 resources found

A long cache lifetime can speed up repeat visits to your page

Max Potential First Input Delay 1,680 ms

The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task

Time to Interactive 11.4 s

Time to interactive is the amount of time it takes for the page to become fully interactive

Network Round Trip Times 0 ms

Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance

Page load is not fast enough on mobile networks Interactive at 11.4 s

A fast page load over a cellular network ensures a good mobile user experience

Estimated Input Latency 950 ms

First Contentful Paint (3G) 6246 ms

First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network

Minify CSS Potential savings of 13 KB

Minifying CSS files can reduce network payload sizes

Tap targets are not sized appropriately 59% appropriately sized tap targets

Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements

Document uses legible font sizes 100% legible text

Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px

Remove unused CSS Potential savings of 59 KB

Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity

Serve images in next-gen formats Potential savings of 54 KB

Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption

Speed And Optimization Tips

Only Registered Users

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Alexa Rank

0

Local Rank: / Users: / PageViews:

Global Rank

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server

HTTP/1.1 200 OK
Date: Mon, 09 Dec 2019 06:08:02 GMT
X-Content-Type-Options: nosniff
Cache-Control: max-age=3600
Content-Encoding: gzip
Content-Length: 13057
Content-Type: text/html; charset=UTF-8
Content-Language: de
vary: Accept-Encoding, cookie
Age: 1685
X-RateLimit-Remaining: 0
X-Powered-By: ETH Informatikdiensten
X-Delievered-From: Hoengg
Accept-Ranges: bytes
Connection: keep-alive

DNS Records DNS Resource Records associated with a hostname

View DNS Records

Type	Name	Value	Class	TTL
A	ethz.ch	129.132.19.216	IN	299
NS	ethz.ch	ns2.ethz.ch	IN	573
NS	ethz.ch	ns1.ethz.ch	IN	573
NS	ethz.ch	ns2.switch.ch	IN	573
MX	ethz.ch	mc4.ethz.ch	IN	300
MX	ethz.ch	mc1.ethz.ch	IN	300
MX	ethz.ch	mc2.ethz.ch	IN	300
MX	ethz.ch	mc3.ethz.ch	IN	300
TXT	ethz.ch	uG05urgXxo6oWSLfesPVBgm/bOMJr7D9p9HcfCSxMOnkQRGFziYpJjtK9kR2uDySSGyaFLH30TPP/Fo7lOFzUQ==	IN	3600
TXT	ethz.ch	adobe-idp-site-verification=3195e9b223cdb14077ca5c6e48374a4e1881d73840053bfa00c78926ed92d5ba	IN	3600
TXT	ethz.ch	1f832bf7-dfec-40bd-8131-48b40cb065c7	IN	3600
TXT	ethz.ch	ZOOM_verify_SDyjOsgWRNuMpXGxpISDLw	IN	3600
TXT	ethz.ch	swisssign-check=BDtdqMH6pceyO3KHVIS1vsJmGjJ9hesEH5867tOMnr	IN	3600
AAAA	ethz.ch	2001:67c:10ec:254::216	IN	2549

Your Website Score is

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56 ethz.ch Last Updated: 10 months

Desktop

Mobile

Estimation Traffic and Earnings

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Desktop

Mobile

Speed And Optimization Tips

Sign up for see all features and reviews about this site

Alexa Rank

0

Information Server

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