st21.jp

🖥 Status: up
🕒 Response Time: 4.058 sec
⬅️ Response Code: 200
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st21.jp

Between April 21, 2026, and the 59 day after, st21.jp had a total of 3 availability checks performed. St21.jp, operational 3 times in all tests, responded with a code 200 during its most recent recorded uptime on June 12, 2026. Checks that were done as of June 20, 2026, show that st21.jp was never unavailable. As of June 20, 2026, records show that no error status codes had been noted in any of the responses that had been received. On June 12, 2026, contrasted by a 4.005 seconds average, st21.jp's response time was 4.058 seconds.

3.0
3
Last Updated: June 12, 2026

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Last Updated: May 6, 2026
Status: up
Response Time: 0.347 sec
Response Code: 200

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Last Updated: June 6, 2026
Status: up
Response Time: 0.727 sec
Response Code: 200

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Last Updated: May 31, 2026
Status: up
Response Time: 0.097 sec
Response Code: 200

St21.jp overview

Domain
st21.jp
Title
たまプラーザのピアノ・個人練習専用音楽スタジオ|STUDIO21 [スタジオ21] | 東急田園都市線たまプラーザ駅の音楽スタジオ・STUDIO21 [スタジオ21]です。ピアノ・個人練習専用の音楽スタジオ。 プロ仕様の設備を整えたスタジオです。個人練習に適したBst(4 帖)、Cst(16 帖)にはフルコンサートピアノ(YAMAHA C6X C6X)完備。
Description
東急田園都市線たまプラーザ駅の音楽スタジオ・STUDIO21 [スタジオ21]です。ピアノ・個人練習専用の音楽スタジオ。 プロ仕様の設備を整えたスタジオです。個人練習に適したBst(4 帖)、Cst(16 帖)にはフルコンサートピアノ(YAMAHA C6X C6X)完備。
S Site Status Rank
1 984 441
Search Wikipedia
st21.jp
Alternatives
alternatives to st21.jp

St21.jp
status check request map as of June 20, 2026

st21.jp request, June 12, 2026

Country report for st21.jp as of June 20, 2026

United States 100.00%
05:49

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St21.jp

General SEO Report

Page Titleたまプラーザのピアノ・個人練習専用音楽スタジオ|STUDIO21 [スタジオ21] | 東急田園都市線たまプラーザ駅の音楽スタジオ・STUDIO21 [スタジオ21]です。ピアノ・個人練習専用の音楽スタジオ。 プロ仕様の設備を整えたスタジオです。個人練習に適したBst(4 帖)、Cst(16 帖)にはフルコンサートピアノ(YAMAHA C6X C6X)完備。

Length: 430 characters
Meta Description東急田園都市線たまプラーザ駅の音楽スタジオ・STUDIO21 [スタジオ21]です。ピアノ・個人練習専用の音楽スタジオ。 プロ仕様の設備を整えたスタジオです。個人練習に適したBst(4 帖)、Cst(16 帖)にはフルコンサートピアノ(YAMAHA C6X C6X)完備。

Length: 330 characters
Meta Keywordsno meta keywords data for st21.jp
2026-06-20T13:21:07+00:00
Page ContentWeb Page Content Length: 35102 characters
H1 Headingno h1 heading data for st21.jp
2026-06-20T13:21:07+00:00
H2 Headingsスタジオ21からのお願い
スタジオ21 ご利用のご案内
各スタジオルームのご紹介
スタジオA
スタジオB
スタジオC
営業日
感染症予防対策へのご協力のお願い
入会費・年会費無料! 下記料金にてご利用いただけます
STUDIO21からのお知らせ
お知らせ


Count: 11 heading tag
H3 Headings利用料金のご案内

Count: 1 heading tag
H4 Headingsno h4 headings data for st21.jp
2026-06-20T13:21:07+00:00
H5-H6 Headingsno h5-h6 headings data for st21.jp
2026-06-20T13:21:07+00:00
Image ALT Attributeshttps://www.st21.jp/wp-content/uploads/2019/02/logo.png
https://www.st21.jp/wp-content/uploads/2024/05/st-kakunin-1024x444.jpg
https://www.st21.jp/wp-content/uploads/2024/04/paypay-300x114.png
https://www.st21.jp/wp-content/uploads/2024/04/st-topba.png
https://www.st21.jp/wp-content/uploads/2019/03/studio_a.jpg
https://www.st21.jp/wp-content/uploads/2019/03/studio_b.jpg
https://www.st21.jp/wp-content/uploads/2019/03/studio_c.jpg
https://www.st21.jp/wp-content/uploads/2019/04/studiol-300x169.png
https://www.st21.jp/wp-content/uploads/2019/03/footer_reserve_off.png


Count: 9 images with ALT attributes
Robots.txtfile robots.txt was found on the website
XML Sitemapno xml sitemap data for st21.jp
2026-06-20T13:21:07+00:00
Page Sizepage size: 34 kb
Response Timeresponse time: 4.005 sec
Minify CSSMinified:
https://www.st21.jp/wp-content/plugins/vk-all-in-one-expansion-unit/assets/css/vkExUnit_style.css?ver=9.112.0.1
https://www.st21.jp/wp-includes/css/dist/block-library/style.min.css?ver=6.8.3
https://use.fontawesome.com/releases/v6.5.1/css/all.css?ver=8.5.40
https://www.st21.jp/wp-content/plugins/wpvr/public/lib/videojs-vr/videojs-vr.css?ver=1
https://www.st21.jp/wp-content/themes/lightning/_g2/library/bootstrap-4/css/bootstrap.min.css?ver=4.5.0
https://www.st21.jp/wp-content/themes/lightning/_g2/assets/css/common.css?ver=15.29.11
https://www.st21.jp/wp-content/themes/lightning/_g2/design-skin/origin2/css/style.css?ver=15.29.11
https://www.st21.jp/wp-content/plugins/vk-all-in-one-expansion-unit/inc/call-to-action/package/assets/css/style.css?ver=9.112.0.1
https://www.st21.jp/wp-content/themes/lightning_child_sample/style.css?ver=15.29.11
https://www.st21.jp/wp-content/themes/lightning/vendor/vektor-inc/font-awesome-versions/src/versions/6/css/all.min.css?ver=6.4.2
https://www.st21.jp/wp-content/plugins/easy-fancybox/fancybox/1.5.4/jquery.fancybox.min.css?ver=6.8.3
https://www.st21.jp/wp-content/plugins/shortcodes-ultimate/includes/css/icons.css?ver=1.1.5
https://www.st21.jp/wp-content/plugins/shortcodes-ultimate/includes/css/shortcodes.css?ver=7.4.5
Unminified:
https://www.st21.jp/wp-content/plugins/contact-form-7/includes/css/styles.css?ver=6.1.2
https://www.st21.jp/wp-content/plugins/wpvr/public/lib/pannellum/src/css/pannellum.css?ver=1
https://www.st21.jp/wp-content/plugins/wpvr/public/lib/pannellum/src/css/video-js.css?ver=1
https://www.st21.jp/wp-content/plugins/wpvr/public/css/owl.carousel.css?ver=8.5.40
https://www.st21.jp/wp-content/plugins/wpvr/public/css/wpvr-public.css?ver=8.5.40


included in the page
Minify JavaScriptMinified:
https://www.st21.jp/wp-includes/js/jquery/jquery.min.js?ver=3.7.1
https://www.st21.jp/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.1
https://www.st21.jp/wp-includes/js/dist/hooks.min.js?ver=4d63a3d491d11ffd8ac6
https://www.st21.jp/wp-includes/js/dist/i18n.min.js?ver=5e580eb46a90c2b997e6
https://www.st21.jp/wp-content/plugins/contact-form-7/includes/swv/js/index.js?ver=6.1.2
https://www.st21.jp/wp-content/plugins/contact-form-7/includes/js/index.js?ver=6.1.2
https://www.st21.jp/wp-content/plugins/vk-all-in-one-expansion-unit/assets/js/all.min.js?ver=9.112.0.1
https://www.st21.jp/wp-content/themes/lightning/_g2/library/bootstrap-4/js/bootstrap.min.js?ver=4.5.0
https://www.st21.jp/wp-content/themes/lightning/_g2/assets/js/lightning.min.js?ver=15.29.11
https://www.st21.jp/wp-includes/js/clipboard.min.js?ver=2.0.11
https://www.st21.jp/wp-content/plugins/vk-all-in-one-expansion-unit/inc/sns/assets/js/copy-button.js
https://www.st21.jp/wp-content/plugins/vk-all-in-one-expansion-unit/inc/smooth-scroll/js/smooth-scroll.min.js?ver=9.112.0.1
https://www.st21.jp/wp-content/plugins/easy-fancybox/vendor/purify.min.js?ver=6.8.3
https://www.st21.jp/wp-content/plugins/easy-fancybox/fancybox/1.5.4/jquery.fancybox.min.js?ver=6.8.3
https://www.st21.jp/wp-content/plugins/easy-fancybox/vendor/jquery.easing.min.js?ver=1.4.1
https://www.st21.jp/wp-content/plugins/easy-fancybox/vendor/jquery.mousewheel.min.js?ver=3.1.13
https://www.st21.jp/wp-content/plugins/shortcodes-ultimate/includes/js/shortcodes/index.js?ver=7.4.5
Unminified:
https://www.st21.jp/wp-content/plugins/wpvr/public/lib/pannellum/src/js/pannellum.js?ver=1
https://www.st21.jp/wp-content/plugins/wpvr/public/lib/pannellum/src/js/libpannellum.js?ver=1
https://www.st21.jp/wp-content/plugins/wpvr/public/js/video.js?ver=1
https://www.st21.jp/wp-content/plugins/wpvr/public/lib/videojs-vr/videojs-vr.js?ver=1
https://www.st21.jp/wp-content/plugins/wpvr/public/lib/pannellum/src/js/videojs-pannellum-plugin.js?ver=1
https://www.st21.jp/wp-content/plugins/wpvr/public/js/owl.carousel.js?ver=6.8.3
https://www.st21.jp/wp-content/plugins/wpvr/public/js/jquery.cookie.js?ver=1
https://www.st21.jp/wp-content/plugins/wpvr/public/js/wpvr-public.js?ver=8.5.40


detected during site scan
Structured Datano structured data data for st21.jp
2026-06-20T13:21:07+00:00
CDN Usageno cdn usage data for st21.jp
2026-06-20T13:21:07+00:00
SSL certificatesSSL is enabled on the website