Cms.nntt.jac.go.jp - SEO Checker

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Overview of the SEO Check
Meta information
79% 
Page quality
50% 
Page structure
79% 
Link structure
98% 
Server
18% 
External factors
33% 
SEO Score
Response time
0.74 s
File size
21.80 kB
Words
29
Media files
34
Number of links
19 internal / 24 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
新国立劇場
The page title is too short. (91 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
新国立劇場のオフィシャルサイトです。新国立劇場では、オペラ、バレエ、ダンス、演劇など最高水準の現代舞台芸術を発信し続けます。
The length of the meta description is perfect. (791 pixels out of 1000 max pixel length)
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
No canonical link is specified.
Language
(Somewhat important)
Language defined in HTML: ja
Server location: United States of America
The following language is defined by HTML: ja
Alternate/Hreflang Links
(Somewhat important)
There are no alternate links specified on this page.
Other meta tags
(Somewhat important)
There is no rel next meta tag on this page.
There is no rel prev meta tag on this page.
Domain
(Somewhat important)
This page is hosted on a subdomain. Use a top level domain for better SEO results.
The domain does not contain non-latin characters.
Page URL
(Somewhat important)
No parameters were found in the URL.
No session ID was found in the URL.
The URL does not have too many subdirectories.
Charset encoding
(Somewhat important)
The character encoding is not specified in the HTTP header.
The charset encoding (UTF-8) is set correctly.
Doctype
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
Favicon
(Nice to have)
The favicon is linked correctly.

Meta tags

NameValue
description新国立劇場のオフィシャルサイトです。新国立劇場では、オペラ、バレエ、ダンス、演劇など最高水準の現代舞台芸術を発信し続けます。
Keywords新国立劇場,オペラ,バレエ,ダンス,演劇
viewportwidth=1200,user-scalable=0,shrink-to-fit=no
format-detectiontelephone=no
langja
fb:app_id150034725188920
og:title新国立劇場
og:typewebsite
og:description新国立劇場のオフィシャルサイトです。新国立劇場では、オペラ、バレエ、ダンス、演劇など最高水準の現代舞台芸術を発信し続けます。
og:urlhttps://www.nntt.jac.go.jp/
og:imagehttps://www.nntt.jac.go.jp/common_files/images/ogp_logo01.gif
og:site_name新国立劇場
og:localeja_JP
X-UA-CompatibleIE=edge
charsetUTF-8

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Page quality

Content
(Critically important)
There are only 29 words on this page. Use at least 250 words to provide useful information.
Only 1 paragraph/s was/were found on this page.
The average number of words per sentence of 0.5 words is low.
10.3% of the text are stop words.
The page contains a listing, which indicates a good text layout.
No placeholders texts or images were found.
There are no duplicates on the site.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
This page loads 8 JavaScript files. This may affect the load time negatively.
A viewport "width=1200,user-scalable=0,shrink-to-fit=no" is provided.
At least one Apple touch icon is specified.
Bold and strong tags
(Somewhat important)
The usage of strong and bold tags is perfect. We recommend the use of up to 6 tags for this page.
Image SEO
(Somewhat important)
10 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
This page is optimized perfectly for social networks.
Additional markup
(Nice to have)
No additional page markup was found.
HTTPS
(Somewhat important)
The HTTPS protocol for secure data transmission is not used.

Media list

URLAlt attributeTitle
/assets/images/common/img_opera.jpgNo alt attribute provided
/assets/images/common/img_ballet.jpgNo alt attribute provided
/assets/images/common/img_drama.jpgNo alt attribute provided
/assets/images/top/img_about01_01.jpgNo alt attribute provided
/assets/images/top/img_about01_02.jpgNo alt attribute provided
/assets/images/top/img_about01_03.jpgNo alt attribute provided
/assets/images/top/img_about02_01.jpgNo alt attribute provided
/assets/images/top/img_about02_02.jpgNo alt attribute provided
/assets/images/top/img_about02_03.jpgNo alt attribute provided
/assets/images/top/img_about03.jpgNo alt attribute provided
/assets/images/common/icon_facebook.pngfacebook
/assets/images/common/icon_twitter.pngtwitter
/assets/images/common/icon_youtube.pngyoutube
/assets/images/common/icon_instagram.pnginstagram
/assets/images/common/icon_facebook.pngfacebook
/assets/images/common/icon_twitter.pngtwitter
/assets/images/common/icon_youtube.pngyoutube
/assets/images/common/icon_instagram.pnginstagram
/assets/images/common/icon_facebook.pngfacebook
/assets/images/common/icon_twitter.pngtwitter
/assets/images/common/icon_youtube.pngyoutube
/assets/images/common/icon_instagram.pnginstagram
/assets/images/common/icon_instagram.pnginstagram
/assets/images/common/icon_twitter.pngtwitter
/assets/images/common/icon_facebook.pngfacebook
/assets/images/common/icon_twitter.pngtwitter
/assets/images/common/icon_facebook.pngfacebook
/assets/images/common/icon_twitter.pngtwitter
...ets/images/top/logo_onward_2021_2022.pngONWARD
.../images/top/logo_kinoshita_2024_2025.svg木下グループ
...s/images/top/logo_sumitomo_2021_2022.png住友化学
/assets/images/top/logo_tbs_2021_2022.pngTBS
...ets/images/top/logo_toyota_2021_2022.pngTOYOTA
/assets/images/top/logo_pia_2021_2022.pngぴあ

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
The structure of headings is missing one or more levels. Do not skip heading levels.

Heading structure

Heading levelContent
H2 Newsお知らせ
H2 Today's programme本日の公演
H2 What's On上演中/まもなく上演
H2 Pick upおすすめ情報
H2 About新国立劇場について
H2 Follow usソーシャルメディア公式アカウント
H3 世界水準の 舞台をつくる
H3 社会とつながる
H3 アーティストを育てる
H3 2024/2025シーズン・特別支援企業グループ
Some anchor texts are used more than once.
The number of internal links is ok.
None of the anchor texts is too long.
All internal links are not using dynamic parameters.
There are 24 external links on this page.

Found links on this page

LinkAttributesAnchor text
http://cms.nntt.jac.go.jp/opera/OPERAオペラ
/ballet-dance/BALLET & DANCEバレエ&ダンス
http://cms.nntt.jac.go.jp/play/DRAMA演劇
/release/お知らせ一覧
/performance/calendar.htmlカレンダーを見る
/performance/全主催公演一覧
http://cms.nntt.jac.go.jp/opera/オペラ
/ballet-dance/バレエ&ダンス
http://cms.nntt.jac.go.jp/play/演劇
/performance/Text duplicate 全主催公演一覧
/performance/outside/全国公演
/performance/student/こども・学生向けの芸術鑑賞
/guide/accessibility/目や耳に障がいを持つお客様への観劇サポートのご案内
http://cms.nntt.jac.go.jp/centre/情報センター
/operastudio/オペラ研修所
/balletschool/バレエ研修所
/dramastudio/演劇研修所
/training/研修事業について
http://cms.nntt.jac.go.jp/about/新国立劇場運営財団について
https://www.facebook.com/nntto...New window External Subdomain Facebook
IMG-ALT facebook
https://twitter.com/nntt_operaNew window External X
IMG-ALT twitter
https://www.youtube.com/user/N...New window External Subdomain Youtube
IMG-ALT youtube
https://www.instagram.com/newn...New window External Subdomain Instagram
IMG-ALT instagram
https://www.facebook.com/nnttb...New window External Subdomain Text duplicate Facebook
IMG-ALT facebook
https://twitter.com/nntt_balletNew window External Text duplicate X
IMG-ALT twitter
https://www.youtube.com/user/N...New window External Subdomain Text duplicate Youtube
IMG-ALT youtube
https://www.instagram.com/nati...New window External Subdomain Text duplicate Instagram
IMG-ALT instagram
https://www.facebook.com/nnttplayNew window External Subdomain Text duplicate Facebook
IMG-ALT facebook
https://twitter.com/nntt_engekiNew window External Text duplicate X
IMG-ALT twitter
https://www.youtube.com/user/N...New window External Subdomain Text duplicate Youtube
IMG-ALT youtube
https://www.instagram.com/nntt...New window External Subdomain Text duplicate Instagram
IMG-ALT instagram
https://www.instagram.com/ball...New window External Subdomain Text duplicate Instagram
IMG-ALT instagram
https://twitter.com/NNTToperas...New window External Text duplicate X
IMG-ALT twitter
https://www.facebook.com/NNTba...New window External Subdomain Text duplicate Facebook
IMG-ALT facebook
https://twitter.com/nntballets...New window External Text duplicate X
IMG-ALT twitter
https://www.facebook.com/nnt.d...New window External Subdomain Text duplicate Facebook
IMG-ALT facebook
https://twitter.com/nnt_dramas...New window External Text duplicate X
IMG-ALT twitter
https://www.onward-hd.co.jp/New window External Subdomain IMG-ALT ONWARD
https://www.kinoshita-group.co...New window External Subdomain IMG-ALT 木下グループ
https://www.sumitomo-chem.co.jp/New window External Subdomain IMG-ALT 住友化学
https://www.tbs.co.jp/New window External Subdomain IMG-ALT TBS
https://toyota.jp/New window External IMG-ALT TOYOTA
https://t.pia.jp/New window External Subdomain IMG-ALT ぴあ

Server configuration

HTTP redirects
(Critically important)
The checked page does not redirect to another URL.
HTTP header
(Important)
The HTML page should be transferred using GZip compression.
No X-Powered HTTP header is sent.
Performance
(Somewhat important)
The page response time of 0.74 seconds is longer than the recommended limit of 0.4 seconds. A high response time unnecessarily slows down search engine crawling and results in bad user experience as well.
This page loads 8 JavaScript files. This may affect the load time negatively.
This page only loads 3 CSS files. That's ok.
The file size of the HTML document is fine (22 kB).

HTTP Response Header

NameValue
dateFri, 21 Mar 2025 08:35:33 GMT
serverApache
x-frame-optionssameorigin
x-download-optionsnoopen
x-content-type-optionsnosniff
accept-rangesbytes
access-control-allow-origin*
x-xss-protection0
content-length22288
connectionclose
content-typetext/html
statuscode200
http_versionHTTP/1.1

External factors

This page has only a few links from other websites.
This page only has backlinks from 11 referring domains.
This page only has 63 backlinks.
This page only has few backlinks from 11 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

Sitemap: https://www.nntt.jac.go.jp/sitemap.xml

Similar sites

Search preview

cms.nntt.jac.go.jp
新国立劇場
新国立劇場のオフィシャルサイトです。新国立劇場では、オペラ、バレエ、ダンス、演劇など最高水準の現代舞台芸術を発信し続けます。

Most important keywords

Following keywords were found. You can check the keyword optimization of this page for each keyword.

KeywordResultRecheck
News38%Check
Today38%Check
programme38%Check
Pick38%Check
Follow38%Check
Facebook38%Check
Youtube38%Check
Instagram38%Check
OPERA36%Check
BALLET36%Check
Show more keywords and terms

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