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Top Technologies

Google Font API
Font Scripts
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45 backbonejs.org Last Updated: 4 weeks

Success 47% of passed verification steps
Warning 23% of total warning
Errors 30% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 99%
Best Practices Desktop Score 77%
SEO Desktop Score 82%
PWA Desktop Score 29%
Performance Mobile Score 99%
Best Practices Mobile Score 77%
SEO Mobile Score 82%
PWA Mobile Score 25%
Page Authority Authority 61%
Domain Authority Domain Authority 62%
Moz Rank 6.1/10
Bounce Rate Rate 0%
Title Tag 11 Characters
BACKBONE.JS
Meta Description 0 Characters
NO DATA
Effective URL 21 Characters
http://backbonejs.org
Excerpt Page content
Backbone.js Backbone.js (1.5.0) » GitHub Repository » Annotated Source Getting Started - Introduction – Models and Views – Co...
Keywords Cloud Density
model377 backbone336 collection261 models136 function118 events115 event111 options110 attributes100 view99
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
model 377
backbone 336
collection 261
models 136
function 118
events 115
event 111
options 110
attributes 100
view 99
Google Preview Your look like this in google search result
BACKBONE.JS
http://backbonejs.org
Backbone.js Backbone.js (1.5.0) » GitHub Repository » Annotated Source Getting Started - Introduction – Models and Views – Co...
Robots.txt File No Found
Sitemap.xml File No Found
Page Size Code & Text Ratio
Document Size: ~220.22 KB
Code Size: ~64.6 KB
Text Size: ~155.62 KB Ratio: 70.67%

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

Technologies

PWA - Manifest

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

Desktop

Desktop Screenshot
Network Round Trip Times 40 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
Avoid serving legacy JavaScript to modern browsers Potential savings of 9 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
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
JavaScript execution time 0.0 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
First Meaningful Paint 0.5 s
First Meaningful Paint measures when the primary content of a page is visible
First Contentful Paint 0.5 s
First Contentful Paint marks the time at which the first text or image is painted
Largest Contentful Paint 1.0 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Avoid an excessive DOM size 3,014 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)
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
Avoid long main-thread tasks 1 long task found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay
Avoids enormous network payloads Total size was 238 KiB
Large network payloads cost users real money and are highly correlated with long load times
Web app manifest or service worker do not meet the installability requirements 1 reason
Service worker is the technology that enables your app to use many Progressive Web App features, such as offline, add to homescreen, and push notifications. With proper service worker and manifest implementations, browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement
Serve static assets with an efficient cache policy 14 resources found
A long cache lifetime can speed up repeat visits to your page
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Links do not have descriptive text 1 link found
Descriptive link text helps search engines understand your content
Does not use HTTPS 15 insecure requests 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
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
Speed Index 0.6 s
Speed Index shows how quickly the contents of a page are visibly populated
Time to Interactive 0.5 s
Time to Interactive is the amount of time it takes for the page to become fully interactive
Reduce unused JavaScript Potential savings of 42 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Minify JavaScript Potential savings of 63 KiB
Minifying JavaScript files can reduce payload sizes and script parse time
Properly size images Potential savings of 9 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Initial server response time was short Root document took 250 ms
Keep the server response time for the main document short because all other requests depend on it
Max Potential First Input Delay 70 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Minimizes main-thread work 0.3 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
Largest Contentful Paint element 990 ms
This is the largest contentful element painted within the viewport

Mobile

Mobile Screenshot
Avoid serving legacy JavaScript to modern browsers Potential savings of 9 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 enormous network payloads Total size was 238 KiB
Large network payloads cost users real money and are highly correlated with long load times
First Meaningful Paint 1.3 s
First Meaningful Paint measures when the primary content of a page is visible
Avoid large layout shifts 5 elements found
These DOM elements contribute most to the CLS of the page
Speed Index 1.3 s
Speed Index shows how quickly the contents of a page are visibly populated
Serve static assets with an efficient cache policy 14 resources found
A long cache lifetime can speed up repeat visits to your page
Tap targets are not sized appropriately 81% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), or have enough space around them, to be easy enough to tap without overlapping onto other elements
Avoid an excessive DOM size 3,014 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)
Network Round Trip Times 40 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
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
Links do not have descriptive text 1 link found
Descriptive link text helps search engines understand your content
Defer offscreen images Potential savings of 8 KiB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
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
Server Backend Latencies 100 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
Reduce unused JavaScript Potential savings of 42 KiB
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity
Time to Interactive 1.9 s
Time to Interactive is the amount of time it takes for the page to become fully interactive
Does not use HTTPS 15 insecure requests 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
First Contentful Paint 1.3 s
First Contentful Paint marks the time at which the first text or image is painted
Minimizes main-thread work 1.1 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
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
Properly size images Potential savings of 5 KiB
Serve images that are appropriately-sized to save cellular data and improve load time
Minify JavaScript Potential savings of 63 KiB
Minifying JavaScript files can reduce payload sizes and script parse time
Largest Contentful Paint element 1,700 ms
This is the largest contentful element painted within the viewport
Max Potential First Input Delay 230 ms
The maximum potential First Input Delay that your users could experience is the duration of the longest task
Initial server response time was short Root document took 40 ms
Keep the server response time for the main document short because all other requests depend on it
Largest Contentful Paint 1.7 s
Largest Contentful Paint marks the time at which the largest text or image is painted
Total Blocking Time 10 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds
Cumulative Layout Shift 0.042
Cumulative Layout Shift measures the movement of visible elements within the viewport
Web app manifest or service worker do not meet the installability requirements 1 reason
Service worker is the technology that enables your app to use many Progressive Web App features, such as offline, add to homescreen, and push notifications. With proper service worker and manifest implementations, browsers can proactively prompt users to add your app to their homescreen, which can lead to higher engagement
Document uses legible font sizes 99.73% 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
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

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
Warning! Your site not 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
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

99,999,999

Global Rank

99,999,999

-
Traffic
Search

Domain Available

Domain (TDL) and Typo Status
backbonejs.co Already Registered
backbonejs.us Already Registered
backbonejs.com Already Registered
backbonejs.org Already Registered
backbonejs.net Already Registered
bckbonejs.org Already Registered
gackbonejs.org Already Registered
yackbonejs.org Already Registered

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/1.1 200 OK
Date: Sun, 27 Aug 2023 09:06:33 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
Last-Modified: Fri, 28 Jul 2023 16:22:08 GMT
Access-Control-Allow-Origin: *
expires: Tue, 01 Aug 2023 00:02:44 GMT
Cache-Control: max-age=600
x-proxy-cache: MISS
X-GitHub-Request-Id: 1C6C:422F:7F814F:826C01:64C8494C
Via: 1.1 varnish
Age: 469
X-Served-By: cache-fra-eddf8230025-FRA
X-Cache: HIT
X-Cache-Hits: 1
X-Timer: S1693127193.088300,VS0,VE2
Vary: Accept-Encoding
X-Fastly-Request-ID: 7470b0066154be9492697f5efb7d2156365a8213
CF-Cache-Status: DYNAMIC
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=zyEjrv8tw73XoTIBWGQ9v650MFnZwh05f5biF8t6g%2FdsZ8iUea39lMoBbvYvesrEafqImGgfSzmUW8oLM1QmtIn6Y3im%2FPESEKLCij%2BWknqeVyXpp%2BoT9Bgt9VzqTDqlUA%3D%3D"}],"group":"cf-nel","max_age":604800}
NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Server: cloudflare
CF-RAY: 7fd328bc8d4e3575-WAW
Content-Encoding: gzip
alt-svc: h3=":443"; ma=86400
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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