clark.ed.jp
🖥 Status: up
🕒 Response Time: 1.880 sec
⬅️ Response Code: 200
Within the past 292 day period starting October 26, 2025, the operability of clark.ed.jp was checked 6 times. Including the most recent check on May 12, 2026, which returned a 200 status code, clark.ed.jp was reachable 6 times out of all conducted tests. No periods of inoperability were observed for clark.ed.jp across all assessments made as of August 14, 2026. The responses received indicate that there were no error statuses as of August 14, 2026. Compared to its 1.880 seconds reply on May 12, 2026, clark.ed.jp's average response time is 1.923 seconds.
6
Last Updated: May 12, 2026
Clark overview
- Domain
- clark.ed.jp
- Title
- 通信制高校 | クラーク記念国際高等学校
- Description
- クラーク記念国際高等学校は1992年開校、1万人以上の生徒が学ぶ通信制高校です。「夢・挑戦・達成」をモットーに、一人ひとりが興味のあることを学べる多彩なコースや授業が充実。難関大学にも毎年多数合格しています。
- K Site Status Rank
- 307 691
- Search Wikipedia
- clark.ed.jp
- Alternatives
- alternatives to clark.ed.jp
- Recently checked
- americanorchestras.org
skipthedishes.com
Last Updated: July 3, 2026
Status: error
Response Time: 0.132 sec
Response Code: 403
Clark.ed.jp
status check request map as of August 14, 2026
Country report for clark.ed.jp as of August 14, 2026
| United States | 100.00% | ||||||||
| 18:42 | |||||||||
| Site | Total Checks | Last Modified |
|---|---|---|
| 6 | January 4, 2025 | |
| 1 | April 11, 2026 | |
| 6 | October 26, 2025 | |
| 3 | May 30, 2022 | |
| 5 | May 15, 2026 |
Skipthedishes.com | Clark.ed.jp | ||||
|---|---|---|---|---|---|
General SEO Report
| Page Title | Page Title tips for clark.ed.jp: Consider the character limit when creating your website titles, aiming for under sixty characters, so that searchers see the complete title in results, incorporating your primary keywords near the beginning for improved SEO performance while accurately representing the specific page content offered. |
|---|---|
| 通信制高校 | クラーク記念国際高等学校 Length: 54 characters | |
| Meta Description | Meta Description tips for clark.ed.jp: Don't overlook the importance of readability in meta tags; use clear language, break up the text logically, and consider adding a secondary keyword naturally if it complements the core message and primary focus. |
| クラーク記念国際高等学校は1992年開校、1万人以上の生徒が学ぶ通信制高校です。「夢・挑戦・達成」をモットーに、一人ひとりが興味のあることを学べる多彩なコースや授業が充実。難関大学にも毎年多数合格しています。 Length: 302 characters | |
| Meta Keywords | Meta Keywords tips for clark.ed.jp: For optimal website performance, prioritize schema markup, mobile-friendliness, and fast loading speeds alongside comprehensive content strategies; neglecting the meta keywords tag is the correct action according to current search engine directives and best practices. |
| no meta keywords data for clark.ed.jp 2026-08-14T13:47:24+00:00 | |
| Page Content | Page Content tips for clark.ed.jp: Optimize on-page content by strategically placing core keywords in titles, headers, and body text for featured snippets and EAT signals, ensuring clarity and user engagement on each page. |
| Web Page Content Length: 172864 characters | |
| H1 Heading | H1 Heading tips for clark.ed.jp: The single H1 tag on each webpage serves as the primary headline, crucial for both user comprehension and search engine ranking of the page's main topic. |
| no h1 heading data for clark.ed.jp 2026-08-14T13:47:24+00:00 | |
| H2 Headings | H2 Headings tips for clark.ed.jp: Testing different phrasings in your H2 tags using A/B tests can help you identify the most effective messaging for engaging your audience and potentially improving click-through rates. |
| スポーツで「夢、挑戦、達成」 クラーク記念国際高等学校とは 壱岐島での探究留学『生きていく力を探しに』をレポート！ 英検の上級合格者が続出！クラーク国際の国際・英語教育とは 立命館アジア太平洋大学で、第２回 LbE Japan主催の探究留学プログラムに参加！ 【高大接続】パフォーマンスコース3キャンパス合同！教育×表現ツアー＠IPU岡山 第5回 全国中学生e-Sports選手権 開催いたしました！ 国連主催「高校生の主張コンクール」出場、国連大学でスピーチを発表！ 【スポーツコース女子硬式野球専攻】第５回栃木さくらカップ２０２５決勝進出も惜しくも準優勝！！ 【全日本体操種目別】床運動・平均台2種目優勝🥇！！🏆 【西神中央サッカー専攻】タウンクラブカップが終了しました⚽ 【女子バレーボール部】全国を懸けた挑戦へ――全道大会初戦を快勝！ 【世界体操2025】岸里奈選手、種目別ゆかで堂々の演技！ 【速報】世界体操・女子個人総合 岸里奈選手6位！ and 17 more... Count: 15 heading tag | |
| H3 Headings | H3 Headings tips for clark.ed.jp: Test different H3 header phrasings to see which ones generate better user engagement metrics like time-on-page and lower bounce rates, refining your content strategy based on actual user behavior data. |
| 中学生の皆さま 転入学・編入学希望の皆さま 自分のペースで学べる 「クラーク国際中等部」 週5日通学したい 通学日数を選びたい 自宅で学びたい 学校説明会開催中！ご予約はお早めに！ 壱岐島での探究留学『生きていく力を探しに』をレポート！ 【進路実績】2025年度 大学合格速報！クラークでサクラ咲く！ 英検の上級合格者が続出！クラーク国際の国際・英語教育とは 静岡キャンパスの生徒が警察署長より感謝状を頂きました！ 立命館アジア太平洋大学で、第２回 LbE Japan主催の探究留学プログラムに参加！ 【オーストラリア短期留学】実践を通して学ぶ – TAFE体験授業 – 【ハワイ島留学】Konaでの学びと体験が育てた生徒たちの気づき 【オーストラリア短期留学】3日目は学習と交流の一日 【オーストラリア短期留学】緊張と期待の渡航初日 【ハワイ島留学】ロコワカ（Locowaka）養魚池ボランティア活動に参加 and 122 more... Count: 18 heading tag | |
| H4 Headings | H4 Headings tips for clark.ed.jp: Accessibility features built into screen readers heavily depend on proper heading hierarchy, meaning well-implemented H4 tags ensure your content is perceivable by a wider audience, including users with disabilities, aligning with ethical web development and SEO principles. |
| no h4 headings data for clark.ed.jp 2026-08-14T13:47:24+00:00 | |
| H5-H6 Headings | H5-H6 Headings tips for clark.ed.jp: Integrating H5 and H6 headers into your content structure can improve keyword density in specific areas and potentially enhance topical relevance signals for search engines analyzing complex pages. |
| no h5-h6 headings data for clark.ed.jp 2026-08-14T13:47:24+00:00 | |
| Image ALT Attributes | Image ALT Attributes tips for clark.ed.jp: For images illustrating a step in a process or a part of a tutorial, the alt text should clearly describe that specific step or element, enabling screen reader users to follow along without needing to view the visual, thus reinforcing the instructional content and aiding SEO for tutorial-related queries. |
| https://www.clark.ed.jp/wp-content/uploads/2022/10/logo.jpg https://www.clark.ed.jp/wp-content/uploads/2022/12/sn-feature-top.png https://www.clark.ed.jp/wp-content/uploads/2022/12/sn-sentaku-top.jpg https://www.clark.ed.jp/wp-content/uploads/2025/04/tn-result-top2.jpg https://www.clark.ed.jp/wp-content/uploads/2022/12/sn-campus-top.png https://www.clark.ed.jp/wp-content/uploads/2025/03/entrance_2025_tennyu.png https://www.clark.ed.jp/wp-content/uploads/2025/05/entrance_2024_jr.png https://www.clark.ed.jp/wp-content/uploads/2022/12/style-logo.png https://www.clark.ed.jp/wp-content/uploads/2024/10/top_style_01_3.jpg https://www.clark.ed.jp/wp-content/uploads/2024/10/top_style_02_3.jpg https://www.clark.ed.jp/wp-content/uploads/2024/10/top_style_03_3.jpg https://www.clark.ed.jp/wp-content/uploads/2022/11/news-logo.png https://www.clark.ed.jp/wp-content/uploads/2024/08/1c0d8fa59b379b5ac65bcd4e9862f2ca-1024x450.jpg and 12 more... Count: 14 images with ALT attributes | |
| Robots.txt | Robots.txt tips for clark.ed.jp: Remember that search engines typically ignore the robots.txt file for pages blocked by the `noindex` meta tag or other methods like password protection, emphasizing that robots.txt is primarily for crawl control, not definitive blocking of indexing. |
| file robots.txt was found on the website | |
| XML Sitemap | XML Sitemap tips for clark.ed.jp: An XML sitemap serves as a vital communication tool for search engines, explicitly listing all important URLs on your site while providing valuable metadata like last modification dates, estimated update frequency, and the priority level relative to other pages, which aids crawlers in efficient resource allocation. |
| no xml sitemap data for clark.ed.jp 2026-08-14T13:47:24+00:00 | |
| Page Size | Page Size tips for clark.ed.jp: Failure to optimize page size can result in sluggish performance, frustrating users, leading to higher bounce rates, lost revenue, and potentially harming your search engine ranking positions. |
| page size: 169 kb | |
| Response Time | Response Time tips for clark.ed.jp: To achieve optimal performance, implement server-side rendering techniques or API optimizations that can slash your website's overall response time significantly. |
| response time: 1.923 sec | |
| Minify CSS | Minify CSS tips for clark.ed.jp: CSS file size reduction via minification techniques is vital for accelerating website performance and satisfying users, automatically compressing code by removing line breaks and comments, which helps achieve better Core Web Vitals metrics, faster load times, and consequently, improved SEO rankings. |
| Minified: https://www.clark.ed.jp/wp-content/themes/swell/assets/font-awesome/v6/css/all.min.css?ver=2.15.0 https://www.clark.ed.jp/wp-content/themes/swell/build/css/swell-icons.css?ver=2.15.0 https://www.clark.ed.jp/wp-content/themes/swell/build/css/main.css?ver=2.15.0 https://www.clark.ed.jp/wp-content/themes/swell/build/css/blocks.css?ver=2.15.0 https://www.clark.ed.jp/wp-content/themes/swell/build/css/modules/loaded-animation.css?ver=2.15.0 https://www.clark.ed.jp/wp-content/themes/swell/build/css/modules/parts/footer.css?ver=2.15.0 https://www.clark.ed.jp/wp-content/themes/swell/build/css/modules/page/page.css?ver=2.15.0 https://www.clark.ed.jp/wp-content/themes/swell_child/style.css?ver=120840205 https://www.clark.ed.jp/wp-content/themes/swell/build/css/noscript.css https://www.clark.ed.jp/wp-content/themes/swell/build/css/print.css /wp-content/themes/swell/build/css/plugins/swiper.css?ver=2.7.5.1 Unminified: https://www.clark.ed.jp/wp-content/plugins/user-access-manager/assets/css/uamLoginForm.css?ver=2.2.25 included in the page | |
| Minify JavaScript | Minify JavaScript tips for clark.ed.jp: Always serve minified JavaScript files in production, ensuring that your site benefits from the reduced file sizes; this practice aligns directly with performance best practices recognized by search engines like Google, contributing positively to your site's speed score, which is a ranking factor influencing visibility in search results and user retention metrics. |
| Minified: https://www.clark.ed.jp/wp-content/themes/swell/build/js/main.min.js?ver=2.15.0 https://www.clark.ed.jp/wp-content/plugins/wpforms-user-journey/assets/js/wpforms-user-journey.min.js?ver=1.5.0 https://www.clark.ed.jp/wp-content/themes/swell/build/js/front/set_fix_header.min.js?ver=2.15.0 /wp-content/themes/swell/assets/js/plugins/swiper.min.js?ver=2.7.5.1 https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015 Unminified: https://www.clark.ed.jp/wp-content/themes/swell_child/assets/js/site.js?ver=1759375408 detected during site scan | |
| Structured Data | Structured Data tips for clark.ed.jp: Don't overlook the importance of testing and validating your website's structured data implementation; use Google's Structured Data Testing Tool to ensure your JSON-LD markup is error-free for all implemented schemas, preventing crawl errors and wasted SEO effort. |
| no structured data data for clark.ed.jp 2026-08-14T13:47:24+00:00 | |
| CDN Usage | CDN Usage tips for clark.ed.jp: Integrating a robust CDN solution significantly reduces the strain on your origin server's bandwidth by caching and serving static assets from edge locations, freeing up resources to handle dynamic content processing and database queries, which directly translates to lower infrastructure costs and improved backend application performance. |
| content is delivered via CDN | |
| SSL certificates | SSL certificates tips for clark.ed.jp: Securing your website with a properly implemented, actively monitored SSL certificate is crucial not only for protecting customer data during transmission but also for achieving a higher ranking on Google's search results, where HTTPS is a confirmed usability and security signal that directly influences your visibility online. |
| SSL is enabled on the website |
Estimated Traffic
| Minimum Daily Unique Visitors: | 1 550 |
| Minimum Daily Visits: | 1 811 |
| Minimum Daily Page Views: | 3 118 |
| Minimum Monthly Unique Visitors: | 46 500 |
| Minimum Monthly Visits: | 54 330 |
| Minimum Monthly Page Views: | 93 540 |
| Minimum Yearly Unique Visitors: | 558 000 |
| Minimum Yearly Visits: | 651 960 |
| Minimum Yearly Page Views: | 1 122 480 |
| Maximum Daily Unique Visitors: | 1 960 |
| Maximum Daily Visits: | 2 091 |
| Maximum Daily Page Views: | 3 529 |
| Maximum Monthly Unique Visitors: | 58 800 |
| Maximum Monthly Visits: | 62 730 |
| Maximum Monthly Page Views: | 105 870 |
| Maximum Yearly Unique Visitors: | 705 600 |
| Maximum Yearly Visits: | 752 760 |
| Maximum Yearly Page Views: | 1 270 440 |
Estimated Valuation
| Daily Revenue: | US$ 2 - 5 |
| Monthly Revenue: | US$ 60 - 150 |
| Yearly Revenue: | US$ 720 - 1 800 |
Estimated Worth
| Minimum: | US$ 1 080 |
| Maximum: | US$ 5 400 |
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