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35 codecamp.jp 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 67%
Best Practices Desktop Score 77%
SEO Desktop Score 91%
Progressive Web App Desktop Score 31%
Performance Mobile Score 20%
Best Practices Mobile Score 85%
SEO Mobile Score 92%
Progressive Web App Mobile Score 33%
Page Authority Authority 44%
Domain Authority Domain Authority 49%
Moz Rank 4.4/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 45 Characters
プログラミング学ぶなら、オンラインレッスンNO.1 | CODECAMP(コードキャンプ)
Meta Description 121 Characters
受講20,000人突破。プログラミング初心者でも、現役エンジニアの個別指導で効率よく確実に習得できる。毎日24時まで受講可能。無料体験レッスン実施中!プログラミングを学ぶなら、オンライン個別指導No.1のプログラミングレッスンCodeCamp
Effective URL 19 Characters
https://codecamp.jp
Excerpt Page content
プログラミング学ぶなら、オンラインレッスンNo.1 | CodeCamp(コードキャンプ) icn_navi_textbook icn_navi_lesson icn_check icon icn_menu_open icn_targetBlank icn_header_user icn_navi_courses ...
Keywords Cloud Density
詳しく見る9 icon6 navi5 codecamp5 まずは無料で4 無料体験を試してみる4 コース一覧4 初めての方へ4 codecampgate4 codecampをお試しください4
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
詳しく見る 9
icon 6
navi 5
codecamp 5
まずは無料で 4
無料体験を試してみる 4
コース一覧 4
初めての方へ 4
codecampgate 4
codecampをお試しください 4
Google Preview Your look like this in google search result
プログラミング学ぶなら、オンラインレッスンNO.1 | CODECAMP(コードキャンプ)
https://codecamp.jp
受講20,000人突破。プログラミング初心者でも、現役エンジニアの個別指導で効率よく確実に習得できる。毎日24時まで受講可能。無料体験レッスン実施中!プログラミングを学ぶなら、オンライン個別指導No.1のプログラミングレッスンCodeCamp
Robots.txt File Detected
Sitemap.xml File No Found
Page Size Code & Text Ratio
Document Size: ~362.75 KB
Code Size: ~77.67 KB
Text Size: ~285.08 KB Ratio: 78.59%

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
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 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 43 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 949 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 3.1 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 2.5 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).
Avoid enormous network payloads Total size was 3,405 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 1.3 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 0.9 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid chaining critical requests 5 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 801 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 Meaningful Paint 1.8 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 180 requests • 3,405 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 33 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 130 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 2.9 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 on simulated mobile network at 13.9 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
Remove unused CSS Potential savings of 49 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 906 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
Reduce server response times (TTFB) Root document took 1,210 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 490 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Enable text compression Potential savings of 13 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Efficiently encode images Potential savings of 96 KB
Optimized images load faster and consume less cellular data

Mobile

Mobile Screenshot
Reduce server response times (TTFB) Root document took 610 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 2,010 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 96 KB
Optimized images load faster and consume less cellular data
Enable text compression Potential savings of 13 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Reduce the impact of third-party code Third-party code blocked the main thread for 430 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 750 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 2.4 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 840 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Properly size images Potential savings of 265 KB
Serve images that are appropriately-sized to save cellular data and improve load time
Speed Index 8.2 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 12.1 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 enormous network payloads Total size was 3,109 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 5.6 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 4.2 s
First Contentful Paint marks the time at which the first text or image is painted
Avoid chaining critical requests 5 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 756 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 Meaningful Paint 9.3 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 161 requests • 3,109 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 33 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 750 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 13.4 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 13.4 s
A fast page load over a cellular network ensures a good mobile user experience
Estimated Input Latency 210 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
First Contentful Paint (3G) 8368 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 97.1% 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 46 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 738 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

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/1.11.9
Date: Tue, 10 Dec 2019 10:45:43 GMT
Content-Type: text/html; charset=utf-8
Connection: keep-alive
X-Frame-Options: SAMEORIGIN
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
X-Download-Options: noopen
X-Permitted-Cross-Domain-Policies: none
Referrer-Policy: strict-origin-when-cross-origin
ETag: W/"1697887020863d0bebb4ffad4499f01a"
Cache-Control: max-age=0, private, must-revalidate
Set-Cookie: _codecamp_session=RTFUdW1SVHprK1dKY2hqTEhndXFPSmdCWnZyMXY4cVF5aVBZRTlTRXd3NU5FUFcyRHRJb0Zwa3h5MGhZanV5eXFUMXVGSmJsSmdUWHVWNUY3emQwZ21yUkxlNEhva1pINHBTUWtadjRtNk1TYzJNVGdmb3pDRkhYWnpTZW96ZU44cUFkbHFmamZiVUhJQ0l1MlVmRW1RPT0tLXpXRlVoeVZsemR6UzlIMnAzU0hVWXc9PQ%3D%3D--a2fd18af4efcdbe8a8764e330247d469c5b58b6b; path=/; expires=Fri, 10 Jan 2020 10:45:43 -0000; HttpOnly; SameSite=Lax
X-Request-Id: b7c194d1-6246-4367-b4b5-9e1037cc5ee3
X-Runtime: 0.036269
Set-Cookie: ccuid=rB8F/F3vd1eo6BnFBG6gAg==; expires=Thu, 31-Dec-37 23:55:55 GMT; domain=codecamp.jp; path=/
P3P: policyref="/w3c/p3p.xml", CP="CUR ADM OUR NOR STA NID"
Content-Encoding: gzip
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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