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38 studylib.es Last Updated: 4 months

Success 62% of passed verification steps

Warning 15% of total warning

Errors 23% of total errors, require fast action

Mobile

Performance Desktop Score 92%

Best Practices Desktop Score 92%

SEO Desktop Score 100%

Progressive Web App Desktop Score 73%

Performance Mobile Score 54%

Best Practices Mobile Score 92%

SEO Mobile Score 100%

Progressive Web App Mobile Score 48%

Page Authority Authority 46%

Domain Authority Domain Authority 57%

Moz Rank 4.6/10

Bounce Rate Rate 0%

Charset Encoding

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

Title Tag 74 Characters

STUDYLIB.ES - APUNTES, EX&AACUTE;MENES, PR&AACUTE;CTICAS, TRABAJOS, TAREAS

Meta Description 64 Characters

Biblioteca en línea. Materiales de aprendizaje gratuitos.

Effective URL 19 Characters

https://studylib.es

Excerpt Page content

studylib.es - Apuntes, Exámenes, Prácticas, Trabajos, Tareas ...

Meta Keywords 11 Detected

Universidad exámenes documentos resúmenes documento tareas trabajos universitario ensayos apuntes prácticas

Keywords Cloud Density

flashcards7 fichas6 sesión6 studylib5 iniciar4 documentos4 facebook4 google4 study3 palabras3

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

Keyword	Freq	Title	Desc	Domain	H1	H2
flashcards	7
fichas	6
sesión	6
studylib	5
iniciar	4
documentos	4
facebook	4
google	4
study	3
palabras	3

Google Preview Your look like this in google search result

STUDYLIB.ES - APUNTES, EX&AACUTE;MENES, PR&AACUTE;CTICAS, TR

https://studylib.es

Biblioteca en línea. Materiales de aprendizaje gratuitos.

Robots.txt File Detected

http://studylib.es/robots.txt

Sitemap.xml File Detected

http://studylib.es/sitemap.xml

Page Size Code & Text Ratio

Document Size: ~34.67 KB

Code Size: ~16.79 KB

Text Size: ~17.89 KB Ratio: 51.58%

Estimation Traffic and Earnings

Only Registered Users

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Technologies

PWA - Manifest

StudyLib StudyLib

The web app manifest is a simple JSON file that gives you, the developer, the ability to control how your app appears to the user in areas where they would expect to see apps (for example, a mobile device's home screen)

Param name

StudyLib

Param short_name

StudyLib

Param theme_color

#0092a5

Param background_color

#0092a5

Param display

standalone

Manifest is not valid

Your manifest are missing some important params, read more in Web App Manifest

Desktop

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 49 requests • 1,985 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 7 resources found

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

Max Potential First Input Delay 120 ms

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

Time to Interactive 1.6 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

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

Remove unused CSS Potential savings of 48 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 795 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

User Timing marks and measures 1 user timing

Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences

Reduce server response times (TTFB) Root document took 720 ms

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

Eliminate render-blocking resources Potential savings of 420 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 32 KB

Optimized images load faster and consume less cellular data

Minimize third-party usage Third-party code blocked the main thread for 60 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 40 ms

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

JavaScript execution time 0.3 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 74 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 598 KB

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

Speed Index 1.6 s

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

First CPU Idle 1.5 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 1,985 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 0.7 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 1 vulnerability detected

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

Avoid chaining critical requests 19 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 254 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)

Mobile

Reduce server response times (TTFB) Root document took 630 ms

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

Eliminate render-blocking resources Potential savings of 600 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 32 KB

Optimized images load faster and consume less cellular data

Reduce the impact of third-party code Third-party code blocked the main thread for 1,950 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 950 ms

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

Reduce JavaScript execution time 3.8 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 1,030 KB

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

Speed Index 5.2 s

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

First CPU Idle 6.8 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 1,981 KB

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

Minimize main-thread work 6.1 s

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

First Contentful Paint 2.2 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 1 vulnerability detected

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

Avoid chaining critical requests 19 chains found

Avoids an excessive DOM size 256 elements

First Meaningful Paint 2.3 s

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

Keep request counts low and transfer sizes small 49 requests • 1,981 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 7 resources found

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

Max Potential First Input Delay 670 ms

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

Time to Interactive 11.1 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 11.1 s

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

Estimated Input Latency 250 ms

First Contentful Paint (3G) 4335 ms

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

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

Remove unused CSS Potential savings of 48 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 795 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

User Timing marks and measures 1 user timing

Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences

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 
Date: Thu, 23 Apr 2020 20:45:04 GMT
Content-Type: text/html;charset=UTF-8
Connection: keep-alive
Set-Cookie: __cfduid=dab5e77f3ca589d75c8aaa17b68de66791587674704; expires=Sat, 23-May-20 20:45:04 GMT; path=/; domain=.studylib.es; HttpOnly; SameSite=Lax; Secure
Cache-Control: no-cache
Content-Language: es
Expires: Thu, 23 Apr 2020 20:45:03 GMT
CF-Cache-Status: DYNAMIC
Expect-CT: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Server: cloudflare
CF-RAY: 588a6d161b245586-ORD
Content-Encoding: gzip
cf-request-id: 024a6281cd00005586e938c200000001

DNS Records DNS Resource Records associated with a hostname

View DNS Records

Type	Name	Value	Class	TTL
A	studylib.es	172.64.204.21	IN	249
A	studylib.es	172.64.205.21	IN	249
NS	studylib.es	beau.ns.cloudflare.com	IN	86400
NS	studylib.es	marjory.ns.cloudflare.com	IN	86400
MX	studylib.es	aspmx2.googlemail.com	IN	300
MX	studylib.es	alt2.aspmx.l.google.com	IN	300
MX	studylib.es	alt1.aspmx.l.google.com	IN	300
MX	studylib.es	aspmx.l.google.com	IN	300
MX	studylib.es	aspmx3.googlemail.com	IN	300
TXT	studylib.es	v=spf ip4:144.76.152.104 ip4:148.251.157.5 ip:176.9.124.142 ip:176.9.124.151 include:email.freshdesk.com ~all	IN	300
AAAA	studylib.es	2606:4700:e6::ac40:cc15	IN	250
AAAA	studylib.es	2606:4700:e6::ac40:cd15	IN	250

Your Website Score is

Similar Ranking

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Top Technologies

38 studylib.es Last Updated: 4 months

Desktop

Mobile

Estimation Traffic and Earnings

Sign up for see all features and reviews about this site

Technologies

CloudFlare

Google Font API

Twitter Bootstrap

PWA - Manifest

Desktop

Mobile

Speed And Optimization Tips

Sign up for see all features and reviews about this site

Alexa Rank

0

Information Server

Comments