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19 alvisaformacion.com Last Updated: 2 months

Success 40% of passed verification steps
Warning 30% of total warning
Errors 30% of total errors, require fast action
Share

Desktop

Mobile

Performance Desktop Score 86%
Best Practices Desktop Score 52%
SEO Desktop Score 100%
Performance Mobile Score 54%
Best Practices Mobile Score 46%
SEO Mobile Score 100%
Page Authority Authority 0%
Domain Authority Domain Authority 0%
Moz Rank 0.0/10
Bounce Rate Rate 0%
Title Tag 81 Characters
CURSOS DE SOCORRISMO EN MADRID - ALVISA FORMACIÓN DE SOCORRISTAS EN MADRID
Meta Description 207 Characters
Alvisa Formación es la mejor empresa especializada en cursos relacionados con el socorrismo y salvamento acuático en Madrid. Entra en nuestra Web y prepárate para trabajar de socorrista.
Effective URL 31 Characters
https://www.alvisaformacion.com
Excerpt Page content
Cursos de socorrismo en Madrid - Alvisa Formación de socorristas en Madrid Cursos de socorrismo en Madrid - Alvisa Formación de socorristas en Madrid ...
Meta Keywords 1 Detected
cursos socorristas Madrid
Keywords Cloud Density
curso7 madrid7 cursos5 online3 información3 febrero3 formación3 desa2 aviso2 convocatoria2
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
curso 7
madrid 7
cursos 5
online 3
información 3
febrero 3
formación 3
desa 2
aviso 2
convocatoria 2
Google Preview Your look like this in google search result
CURSOS DE SOCORRISMO EN MADRID - ALVISA FORMACIÓN DE
https://www.alvisaformacion.com
Alvisa Formación es la mejor empresa especializada en cursos relacionados con el socorrismo y salvamento acuático en Madrid. Entra en nu
Robots.txt File Detected
http://alvisaformacion.com/robots.txt
Sitemap.xml File No Found
http://alvisaformacion.com/sitemap.xml
Page Size Code & Text Ratio
Document Size: ~19.41 KB
Code Size: ~12.69 KB
Text Size: ~6.72 KB Ratio: 34.63%

Social Data

Estimation Traffic and Earnings

8
Unique Visits
Daily
14
Pages Views
Daily
$0
Income
Daily
224
Unique Visits
Monthly
399
Pages Views
Monthly
$0
Income
Monthly
2,592
Unique Visits
Yearly
4,704
Pages Views
Yearly
$0
Income
Yearly

Desktop

Desktop Screenshot
Speed Index 1.2 s
Speed Index shows how quickly the contents of a page are visibly populated
Avoid chaining critical requests 6 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
Initial server response time was short Root document took 120 ms
Keep the server response time for the main document short because all other requests depend on it
First Contentful Paint 0.5 s
First Contentful Paint marks the time at which the first text or image is painted
Max Potential First Input Delay 90 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Network Round Trip Times 10 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
Largest Contentful Paint 1.2 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Largest Contentful Paint element 1,240 ms
This is the largest contentful element painted within the viewport
Cumulative Layout Shift 0.207
Cumulative Layout Shift measures the movement of visible elements within the viewport
Total Blocking Time 50 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Avoid large layout shifts 4 layout shifts found
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to [windowing](https://web.dev/articles/cls#what_is_cls)
Avoid long main-thread tasks 3 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Avoids enormous network payloads Total size was 1,733 KiB
Large network payloads cost users real money and are highly correlated with long load times
Avoids an excessive DOM size 242 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 Est savings of 53 KiB
Minifying JavaScript files can reduce payload sizes and script parse time
Minimizes main-thread work 0.7 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Serve images in next-gen formats Est savings of 322 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Use efficient cache lifetimes Est savings of 958 KiB
A long cache lifetime can speed up repeat visits to your page
Efficiently encode images Est savings of 61 KiB
Optimized images load faster and consume less cellular data
Legacy JavaScript Est savings of 7 KiB
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile [Baseline](https://web.dev/articles/baseline-and-polyfills) features, unless you know you must support older browsers
Does not use HTTPS 1 insecure request found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding [mixed content](https://developers.google.com/web/fundamentals/security/prevent-mixed-content/what-is-mixed-content), where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs
JavaScript execution time 0.4 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Avoid serving legacy JavaScript to modern browsers Est savings of 7 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile [Baseline](https://web.dev/baseline) features, unless you know you must support legacy browsers
Server Backend Latencies 150 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
Uses deprecated APIs 1 warning found
Deprecated APIs will eventually be removed from the browser
Time to Interactive 2.2 s
Time to Interactive is the amount of time it takes for the page to become fully interactive
Reduce unused JavaScript Est savings of 393 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Minimize third-party usage Third-party code blocked the main thread for 100 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
Defer offscreen images Est savings of 147 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Serve static assets with an efficient cache policy 42 resources found
A long cache lifetime can speed up repeat visits to your page
Improve image delivery Est savings of 313 KiB
Reducing the download time of images can improve the perceived load time of the page and LCP
Eliminate render-blocking resources Est savings of 0 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles

Mobile

Mobile Screenshot
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
Reduce unused JavaScript Est savings of 392 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Largest Contentful Paint element 7,900 ms
This is the largest contentful element painted within the viewport
Server Backend Latencies 140 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 Est savings of 80 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Time to Interactive 10.1 s
Time to Interactive is the amount of time it takes for the page to become fully interactive
Avoids an excessive DOM size 242 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)
Speed Index 3.9 s
Speed Index shows how quickly the contents of a page are visibly populated
Avoid large layout shifts 3 layout shifts found
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to [windowing](https://web.dev/articles/cls#what_is_cls)
Improve image delivery Est savings of 291 KiB
Reducing the download time of images can improve the perceived load time of the page and LCP
Avoid chaining critical requests 6 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
Minify JavaScript Est savings of 53 KiB
Minifying JavaScript files can reduce payload sizes and script parse time
Network Round Trip Times 10 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
First Contentful Paint 1.4 s
First Contentful Paint marks the time at which the first text or image is painted
Initial server response time was short Root document took 140 ms
Keep the server response time for the main document short because all other requests depend on it
Does not use HTTPS 1 insecure request found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding [mixed content](https://developers.google.com/web/fundamentals/security/prevent-mixed-content/what-is-mixed-content), where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs
Eliminate render-blocking resources Est savings of 20 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Total Blocking Time 60 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
JavaScript execution time 0.5 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Avoid long main-thread tasks 3 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Avoids enormous network payloads Total size was 1,731 KiB
Large network payloads cost users real money and are highly correlated with long load times
Render blocking requests Est savings of 780 ms
Requests are blocking the page's initial render, which may delay LCP
Serve static assets with an efficient cache policy 42 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 110 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Use efficient cache lifetimes Est savings of 958 KiB
A long cache lifetime can speed up repeat visits to your page
Legacy JavaScript Est savings of 7 KiB
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile [Baseline](https://web.dev/articles/baseline-and-polyfills) features, unless you know you must support older browsers
Uses deprecated APIs 1 warning found
Deprecated APIs will eventually be removed from the browser
Avoid serving legacy JavaScript to modern browsers Est savings of 7 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile [Baseline](https://web.dev/baseline) features, unless you know you must support legacy browsers
Largest Contentful Paint 7.9 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Cumulative Layout Shift 0.438
Cumulative Layout Shift measures the movement of visible elements within the viewport
Minimize third-party usage Third-party code blocked the main thread for 120 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
Serve images in next-gen formats Est savings of 322 KiB
Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Efficiently encode images Est savings of 61 KiB
Optimized images load faster and consume less cellular data

Speed And Optimization Tips

Website speed has a huge impact on performance, affecting user experience, conversion rates and even rankings. ‪‬‬By reducing page load-times, users are less likely to get distracted and the search engines are more likely to reward you by ranking you
Title Website
Warning! Your title is not optimized
Description Website
Warning! Your description is not optimized
Robots.txt
Congratulations! Your site have a robots.txt file
Sitemap.xml
Warning! Not found a sitemap file for your website
SSL Secure
Congratulations! Your site have Support to HTTPS
Headings
Congratulations! You are using your H1 and H2 tags in your site
Blacklist
Congratulations! Your site is not listed in a blacklist
W3C Validator
Warning! Your site have errors W3C
Accelerated Mobile Pages (AMP)
Warning! Your site not have AMP Version
Domain Authority
Warning! Domain Authority of your website is slow. It is good to have domain authority more than 25.
GZIP Compress
Warning! Your site not is compressed, this can make slower response for the visitors
Favicon
Warning! Your site not have a favicon
Broken Links
Congratulations! You not have broken links View links
First 19 Links Relationship HTTP Status
Ir a inicio de la Escuela de Formaci?n Alvisa Internal Link 200
EMPRESA Internal Link 200
CURSOS Internal Link 200
PROFESORADO Internal Link 200
METODOLOGÍA Internal Link 200
BOLSA DE TRABAJO Internal Link 200
Formaci?n Online socorristas Internal Link 301
INSTALACIONES Internal Link 200
CONTACTA Internal Link 200
Curso de Socorrista Piscinas Acreditado En Madrid - Semipresencial OnLine Internal Link 200
Curso de Monitor de Nataci?n en Madrid Internal Link 200
Curso de Soporte Vital B?sico (SVB) y Desfibrilaci?n Semiautom?tica (DESA) Semicyuc Internal Link 200
Ver informaci?n Internal Link 302
Ver informaci?n Internal Link 302
Abiertas inscripciones intensivos navidad 2024 Internal Link 200
Cursos SOS en 2024 / 2025 Internal Link 200
Más noticias Internal Link 200
Aviso Legal Internal Link 302
Aviso Cookies Internal Link 302

Alexa Rank

99,999,999

Global Rank

99,999,999

-
Traffic
Search

Domain Available

Domain (TDL) and Typo Status
alvisaformacion.co Available
alvisaformacion.us Available
alvisaformacion.com Already Registered
alvisaformacion.org Available
alvisaformacion.net Available
avisaformacion.com Available
qlvisaformacion.com Available
zlvisaformacion.com Available

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server 
HTTP/1.1 200 OK
Date: Thu, 07 Aug 2025 10:35:41 GMT
Server: Apache
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
Set-Cookie: PHPSESSID=kb13fujc81rfsgn6p7n6n4i8u6; path=/
Upgrade: h2
Connection: Upgrade
Content-Type: text/html
DNS Records DNS Resource Records associated with a hostname
View DNS Records
Type Name Value Class TTL
A alvisaformacion.com 46.16.58.84 IN 900
NS alvisaformacion.com ns5.cdmondns-01.com IN 21600
NS alvisaformacion.com ns1.cdmon.net IN 21600
NS alvisaformacion.com ns2.cdmon.net IN 21600
NS alvisaformacion.com ns3.cdmon.net IN 21600
NS alvisaformacion.com ns4.cdmondns-01.org IN 21600
MX alvisaformacion.com ALT4.ASPMX.L.GOOGLE.com IN 300
MX alvisaformacion.com ALT2.ASPMX.L.GOOGLE.com IN 300
MX alvisaformacion.com ASPMX.L.GOOGLE.com IN 300
MX alvisaformacion.com ALT1.ASPMX.L.GOOGLE.com IN 300
MX alvisaformacion.com ALT3.ASPMX.L.GOOGLE.com IN 300
TXT alvisaformacion.com v=spf1 include:_spf.srv.cat mx a ptr ip4:185.34.193.65 include:_spf.google.com ~all IN 900
TXT alvisaformacion.com google-site-verification=wVh4cFF0bb5fVxpwCDO6c4dhbb7nbxYbWvIl5Ba7qTA IN 900
TXT alvisaformacion.com v=DMARC1; p=none; fo=1; [email protected] IN 900

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