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Top Technologies

Google Font API
Font Scripts
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CMS
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Web Servers
Font Awesome
Font Scripts
Google Tag Manager
Tag Managers
Apache
Web Servers
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Web Frameworks

59 rafmuseum.org.uk Last Updated: 2 months

Success 55% of passed verification steps
Warning 30% of total warning
Errors 15% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 52%
Best Practices Desktop Score 64%
SEO Desktop Score 91%
Progressive Web App Desktop Score 19%
Performance Mobile Score 9%
Best Practices Mobile Score 64%
SEO Mobile Score 91%
Progressive Web App Mobile Score 21%
Page Authority Authority 44%
Domain Authority Domain Authority 65%
Moz Rank 4.4/10
Bounce Rate Rate 0%
charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 9 Characters
STACKPATH
Meta Description 0 Characters
NO DATA
Effective URL 27 Characters
http://www.rafmuseum.org.uk
Excerpt Page content
StackPath Please Enable Cookies www.rafmuseum.org.uk is using a security service for protection against online attacks. The service requires full cookie support in order to view this website. Please enable cookies on your browser and try agai...
Keywords Cloud Density
service5 please4 enable4 javascript3 rafmuseum3 using3 security3 protection3 against3 online3
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
service 5
please 4
enable 4
javascript 3
rafmuseum 3
using 3
security 3
protection 3
against 3
online 3
Google Preview Your look like this in google search result
STACKPATH
http://www.rafmuseum.org.uk
StackPath Please Enable Cookies www.rafmuseum.org.uk is using a security service for protection against online attacks. The service requires full cookie support in order to view this website. Please enable cookies on your browser and try agai...
Robots.txt File Detected
Sitemap.xml File Detected
Page Size Code & Text Ratio
Document Size: ~12.25 KB
Code Size: ~1.56 KB
Text Size: ~10.69 KB Ratio: 87.27%

Social Data

Delicious Total: 0
Facebook Total: 0
Google Total: 0
Linkedin Total: 0
Pinterest Total: 0
Stumbleupon Total: 0
Tumblr Total: 0
Vk Total: 0

Estimation Traffic and Earnings

278
Unique Visits
Daily
514
Pages Views
Daily
$0
Income
Daily
7,784
Unique Visits
Monthly
14,649
Pages Views
Monthly
$0
Income
Monthly
90,072
Unique Visits
Yearly
172,704
Pages Views
Yearly
$0
Income
Yearly

Technologies

PWA - Manifest

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

Desktop

Desktop Screenshot
Cumulative Layout Shift 0.001
Cumulative Layout Shift measures the movement of visible elements within the viewport
Efficiently encode images Potential savings of 34 KiB
Optimized images load faster and consume less cellular data
First CPU Idle 3.7 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/).
Avoid an excessive DOM size 1,852 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)
Avoid enormous network payloads Total size was 2,917 KiB
Large network payloads cost users real money and are highly correlated with long load times
JavaScript execution time 0.8 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Avoid large layout shifts 5 elements found
These DOM elements contribute most to the CLS of the page.
Avoid chaining critical requests 32 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
Largest Contentful Paint 3.0 s
Largest Contentful Paint marks the time at which the largest text or image is painted
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
Remove unused JavaScript Potential savings of 686 KiB
Remove unused JavaScript to reduce bytes consumed by network activity
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 servedover 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
Minimizes main-thread work 1.8 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Time to Interactive 4.4 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Keep request counts low and transfer sizes small 158 requests • 2,917 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
Properly size images Potential savings of 52 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Serve images in next-gen formats Potential savings of 178 KiB
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
Includes front-end JavaScript libraries with known security vulnerabilities 9 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Page load is not fast enough on mobile networks Interactive on simulated mobile network at 20.4 s
A fast page load over a cellular network ensures a good mobile user experience
First Contentful Paint 1.9 s
First Contentful Paint marks the time at which the first text or image is painted
Remove unused CSS Potential savings of 92 KiB
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
Minimize third-party usage Third-party code blocked the main thread for 190 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
Minify CSS Potential savings of 13 KiB
Minifying CSS files can reduce network payload sizes
Estimated Input Latency 20 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
Total Blocking Time 150 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
First Meaningful Paint 2.1 s
First Meaningful Paint measures when the primary content of a page is visible
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
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
Avoid serving legacy JavaScript to modern browsers Potential savings of 66 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers
Avoids large JavaScript libraries with smaller alternatives 0 large libraries found
Large JavaScript libraries can lead to poor performance. Prefer smaller, functionally equivalent libraries to reduce your bundle size
Reduce initial server response time Root document took 830 ms
Keep the server response time for the main document short because all other requests depend on it
Max Potential First Input Delay 150 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Avoid multiple page redirects Potential savings of 190 ms
Redirects introduce additional delays before the page can be loaded
Eliminate render-blocking resources Potential savings of 1,940 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
User Timing marks and measures 4 user timings
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences
Avoid long main-thread tasks 5 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Serve static assets with an efficient cache policy 62 resources found
A long cache lifetime can speed up repeat visits to your page
Speed Index 3.3 s
Speed Index shows how quickly the contents of a page are visibly populated

Mobile

Mobile Screenshot
Estimated Input Latency 310 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
Avoid enormous network payloads Total size was 2,922 KiB
Large network payloads cost users real money and are highly correlated with long load times
Avoid multiple page redirects Potential savings of 630 ms
Redirects introduce additional delays before the page can be loaded
Includes front-end JavaScript libraries with known security vulnerabilities 9 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Efficiently encode images Potential savings of 34 KiB
Optimized images load faster and consume less cellular data
Minimize main-thread work 7.9 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Avoid an excessive DOM size 1,852 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)
First Contentful Paint 6.3 s
First Contentful Paint marks the time at which the first text or image is painted
First Contentful Paint (3G) 12638 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Avoid chaining critical requests 32 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
Page load is not fast enough on mobile networks Interactive at 20.3 s
A fast page load over a cellular network ensures a good mobile user experience
Properly size images Potential savings of 33 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Avoid large layout shifts 1 element found
These DOM elements contribute most to the CLS of the page.
Largest Contentful Paint 8.8 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Avoid serving legacy JavaScript to modern browsers Potential savings of 66 KiB
Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy 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 servedover 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
Remove unused CSS Potential savings of 93 KiB
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
Defer offscreen images Potential savings of 269 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Eliminate render-blocking resources Potential savings of 5,810 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Time to Interactive 20.3 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Keep request counts low and transfer sizes small 157 requests • 2,922 KiB
To set budgets for the quantity and size of page resources, add a budget.json file
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
Reduce the impact of third-party code Third-party code blocked the main thread for 1,530 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
Speed Index 12.6 s
Speed Index shows how quickly the contents of a page are visibly populated
First Meaningful Paint 7.1 s
First Meaningful Paint measures when the primary content of a page is visible
Reduce initial server response time Root document took 770 ms
Keep the server response time for the main document short because all other requests depend on it
Largest Contentful Paint element 1 element found
This is the largest contentful element painted within the viewport
Avoid long main-thread tasks 20 long tasks found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Remove unused JavaScript Potential savings of 702 KiB
Remove unused JavaScript to reduce bytes consumed by network activity
Minify CSS Potential savings of 13 KiB
Minifying CSS files can reduce network payload sizes
Reduce JavaScript execution time 4.5 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Total Blocking Time 1,750 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Avoids large JavaScript libraries with smaller alternatives 0 large libraries found
Large JavaScript libraries can lead to poor performance. Prefer smaller, functionally equivalent libraries to reduce your bundle size
User Timing marks and measures 4 user timings
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences
Serve static assets with an efficient cache policy 61 resources found
A long cache lifetime can speed up repeat visits to your page
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
Serve images in next-gen formats Potential savings of 178 KiB
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
Max Potential First Input Delay 820 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Tap targets are not sized appropriately 86% 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
First CPU Idle 11.6 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/).
Document uses legible font sizes 90.59% 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

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
Congratulations! Your title is optimized
Description Website
Warning! Your description is not optimized
Robots.txt
Congratulations! Your site have a robots.txt file
Sitemap.xml
Congratulations! We've found a sitemap file for your website
SSL Secure
Congratulations! Your site have Support to HTTPS
Headings
Warning! Your page not contain any H1 and H2 headings. H1 and H2 headings help indicate the important topics of your page to search engines
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
Congratulations! Your Domain Authority is good
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

Alexa Rank

830,384

Global Rank

830,384

Global
Traffic
Search

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, 01 Oct 2020 20:27:38 GMT
Cache-Control: no-store, no-cache, max-age=0, must-revalidate, private, max-stale=0, post-check=0, pre-check=0
Content-Encoding: gzip
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8
Set-Cookie: SPSI=f50d7a2bed496d84e08530198a2cfd56; path=/; HttpOnly;
Set-Cookie: SPSE=bcc7JuzQgoW06w6v4TNfe6J+VyH+HFZMpl9uXdy0ZpRvo8Nz9N41lpP1iBfPNKGkk0bbkzjIZbLKimz4mBhjwQ==; path=/; HttpOnly;
Set-Cookie: spcsrf=c35efbad5d63342901f3004a3217fddb; path=/; SameSite=Strict; HttpOnly; expires=Thu, 01-Oct-20 22:27:38 GMT
Set-Cookie: adOtr=obsvl; path=/; expires=Thu, 2 Aug 2001 20:47:11 UTC
Set-Cookie: UTGv2=D-h46c8d52e5b4592c3e9bfd59e1cc8ffe0134; path=/; expires=Fri, 01-Oct-21 20:27:38 GMT
Server: fbs
X-Accel-Expires: 0
X-HW: 1601584057.cds009.tr2.h2,1601584057.cds002.tr2.sc,1601584058.cdn2-wafbe03-yyz1.stackpath.systems.-.w,1601584058.cds002.tr2.p
Access-Control-Allow-Origin: *
Connection: keep-alive
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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