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Top Technologies

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Web Frameworks

19 email.cz Last Updated: 9 months

Success 70% of passed verification steps
Warning 7% of total warning
Errors 23% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 85%
Best Practices Desktop Score 85%
SEO Desktop Score 90%
Progressive Web App Desktop Score 31%
Performance Mobile Score 34%
Best Practices Mobile Score 85%
SEO Mobile Score 92%
Progressive Web App Mobile Score 33%
Page Authority Authority 0%
Domain Authority Domain Authority 0%
Moz Rank 0.0/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 21 Characters
PŘIHLÁŠENÍ DO SEZNAMU
Meta Description 133 Characters
Přihlášením do jednoho účtu můžete používat vše od Seznamu. Email, Mapy, Sreality, Stream, firemní profil Seznam naplno a mnohem víc.
Effective URL 80 Characters
https://login.szn.cz/?returnURL=https%3a%2f%2femail.seznam.cz%2f&serviceId=email
Excerpt Page content
Přihlášení do Seznamu ...
Keywords Cloud Density
seznam4 email2 post2 spoluzaci2 stream2 firmy2 česky1 slovensky1 english1 deutsch1
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
seznam 4
email 2
post 2
spoluzaci 2
stream 2
firmy 2
česky 1
slovensky 1
english 1
deutsch 1
Google Preview Your look like this in google search result
PŘIHLÁŠENÍ DO SEZNAMU
https://login.szn.cz/?returnURL=https%3a%2f%2femail.seznam.cz%2f&serviceId=email
Přihlášením do jednoho účtu můžete používat vše od Seznamu. Email, Mapy, Sreality, Stream, firemní profil Seznam naplno a mnohem víc.
Robots.txt File Detected
Sitemap.xml File Detected
Whois Is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system
Updated: 1970-01-01 / 51 years
Create on: 1970-01-01 / 51 years
Expires on: 1970-01-01 / 617 months 13 days

REG-IGNUM REG-IGNUM REG-MOJEID REG-IGNUM REG-IGNUM ,
Registrar Address: Radlická 3294/10 Praha 5 15000 CZ Radlická 3294/10 Praha 5 150 00 CZ ,

Seznam.cz, a.s. Vlastimil Pečínka

Nameservers
ans.seznam.cz
(77.75.74.80,
2a02:598:3333::3)
ams.seznam.cz
(77.75.75.230,
2a02:598:4444::4)
Page Size Code & Text Ratio
Document Size: ~37.77 KB
Code Size: ~21.96 KB
Text Size: ~15.81 KB Ratio: 41.85%

Estimation Traffic and Earnings

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Technologies

PWA - Manifest

Manifest is not valid
Your site don't have valid manifest.json, read more in Web App Manifest

Desktop

Desktop Screenshot
Server response times are low (TTFB) Root document took 550 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 260 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Efficiently encode images Potential savings of 153 KB
Optimized images load faster and consume less cellular data
Enable text compression Potential savings of 33 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
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
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
JavaScript execution time 0.1 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
Speed Index 2.5 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 0.6 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 878 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 0.9 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 0.6 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid chaining critical requests 7 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
Avoids an excessive DOM size 451 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)
Preload key requests Potential savings of 350 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
First Meaningful Paint 0.6 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 148 requests • 878 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 54 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 40 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 0.6 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 10.8 s
A fast page load over a cellular network ensures a good mobile user experience
Estimated Input Latency 10 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
Serve images in next-gen formats Potential savings of 203 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

Mobile

Mobile Screenshot
Serve static assets with an efficient cache policy 54 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 160 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 10.9 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 10.9 s
A fast page load over a cellular network ensures a good mobile user experience
First Contentful Paint (3G) 6346 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Estimated Input Latency 50 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
Tap targets are sized appropriately 100% 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
Serve images in next-gen formats Potential savings of 224 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 450 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 870 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Efficiently encode images Potential savings of 153 KB
Optimized images load faster and consume less cellular data
Enable text compression Potential savings of 32 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Minimize third-party usage Third-party code blocked the main thread for 240 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 320 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 1.4 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 254 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Speed Index 8.6 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 7.9 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 920 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 3.8 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 3.2 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid chaining critical requests 7 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
Avoids an excessive DOM size 454 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)
Preload key requests Potential savings of 1,590 ms
Consider using `<link rel=preload>` to prioritize fetching resources that are currently requested later in page load
First Meaningful Paint 3.6 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 147 requests • 920 KB
To set budgets for the quantity and size of page resources, add a budget.json file

Speed And Optimization Tips

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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
Server: nginx/1.16.1
Date: Tue, 31 Dec 2019 21:15:06 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Content-Security-Policy: script-src 'self' 'unsafe-inline' https://*.imedia.cz https://*.hit.gemius.pl https://connect.facebook.net https://*.facebook.com https://*.stream.cz; report-uri /cspreport;
Strict-Transport-Security: max-age=31536000; includeSubDomains
X-UA-Compatible: IE=edge
Set-Cookie: lps=.eJxNjU0LgkAQhv_KMufwqw9wb4UlQt6Eui2rjijpJrNrB8X_3lAQHed9n-edBVRlqVHu-UADEvIsu2fnXXZN49Ptckxg8w-osiPXglxA1AwXE27ENhQJViIKwlhEkQz3MjiINC9gZbUhtMw3urfI54g0aIPGgXTEMuhShTxU8pvOqhobPfVOTdT_HEI3kflG0Do3Wun7OOiu9yzORg9eNfusW6RXVyFDnxLWNzdbRkI.EO1L2g.eNgNa7wT3DllPCTJO7Mk6MQY8tM; Domain=szn.cz; Expires=Fri, 31-Jan-2020 21:15:06 GMT; Secure; HttpOnly; Path=/
X-FRAME-OPTIONS: DENY
Content-Encoding: gzip
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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