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52 alc.co.jp Last Updated: 10 months

Success 70% of passed verification steps
Warning 7% of total warning
Errors 23% of total errors, require fast action

Desktop

Mobile

Performance Mobile Score 15%
Best Practices Mobile Score 54%
SEO Mobile Score 58%
Progressive Web App Mobile Score 26%
Page Authority Authority 50%
Domain Authority Domain Authority 65%
Moz Rank 5.0/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 33 Characters
英語学習・TOEIC対策・英辞郎 ON THE WEB | アルク
Meta Description 111 Characters
英語・子供英語・日本語の通信講座や学習書、オンラインサービスを提供するアルクのウェブサイト。あなたのレベルや目的に合った語学学習教材がきっと見つかります。英辞郎 on the WEBやTOEICなどの無料コンテンツも充実。
Effective URL 22 Characters
https://www.alc.co.jp/
Excerpt Page content
英語学習・TOEIC対策・英辞郎 on the WEB | アルク ★JavaScriptについて ご利用のブラウザはJavaScriptが無効に設定されています。 お手数ですが、ブ...
Keywords Cloud Density
オンライン英会話4 子ども英語教室2 webマガジン2 初心者英語2 ビジネス英語2 児童英語教師2 リスニング2 toefl2 toeic2 セミナー2
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
オンライン英会話 4
子ども英語教室 2
webマガジン 2
初心者英語 2
ビジネス英語 2
児童英語教師 2
リスニング 2
toefl 2
toeic 2
セミナー 2
Google Preview Your look like this in google search result
英語学習・TOEIC対策・英辞郎 ON THE WEB | アルク
https://www.alc.co.jp/
英語・子供英語・日本語の通信講座や学習書、オンラインサービスを提供するアルクのウェブサイト。あなたのレベルや目的に合った語学学習教材がきっと見つかります。英辞郎 on the WEBやTOEICなどの無料コンテンツも充実。
Robots.txt File Detected
Sitemap.xml File No Found
Page Size Code & Text Ratio
Document Size: ~48.28 KB
Code Size: ~43.37 KB
Text Size: ~4.91 KB Ratio: 10.17%

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

Mobile

Mobile Screenshot
Serve images in next-gen formats Potential savings of 1,703 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 950 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
Enable text compression Potential savings of 257 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Efficiently encode images Potential savings of 1,153 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 1,350 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 1,730 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 6.5 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 311 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Speed Index 13.9 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 14.5 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 4,139 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 11.1 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 4.0 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 3 vulnerabilities detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 12 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 512 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 Potential savings of 134 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 4.0 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 296 requests • 4,139 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 83 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 240 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 20.9 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 at 20.9 s
A fast page load over a cellular network ensures a good mobile user experience
Estimated Input Latency 80 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) 8606.5 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network

Speed And Optimization Tips

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Alexa Rank

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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
Date: Thu, 28 Nov 2019 02:09:54 GMT
Server: Apache
X-Powered-By: PHP/5.3.3
Set-Cookie: PD-ID=ap1coquo7h4jim8jg4cvmu32f1; path=/
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: private, no-cache, must-revalidate
Pragma: no-cache
Connection: close
Content-Type: text/html; charset=UTF-8
Set-Cookie: BIGipServerPool_saweb_SpaceAlc=1023501322.20480.0000; path=/
DNS Records DNS Resource Records associated with a hostname
View DNS Records

Comments

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