Oreilly.co.jp - SEO Checker

Overview of the SEO Check
Meta information
Page quality
Page structure
Link structure
External factors
SEO Score
Response time
2.12 s
File size
21.00 kB
Media files
Number of links
81 internal / 11 external

Task list of SEO Improvements

Meta specifications

(Critically important)
O'Reilly Japan - Home
The length of the page title is perfect. (203 pixels out of 580 max pixel length)
There are no duplicate words in the title
Meta description
(Critically important)
The meta description is missing.
(Critically important)
There are no problems in accessing the website.
Canonical URL
No canonical link is specified.
(Somewhat important)
Language defined in HTML: ja
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.
(Somewhat important)
The domain is no subdomain.
The domain length is good.
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.
(Nice to have)
The doctype HTML 5 is set correctly.
The doctype is placed at first in the HTML code.
(Nice to have)
No favicon is linked in the HTML code.

Meta tags

viewportwidth=device-width, initial-scale=1

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Page quality

(Critically important)
There are only 204 words on this page. Use at least 250 words to provide useful information.
Only 2 paragraph/s was/were found on this page.
The average number of words per sentence of 4 words is low.
2.5% of the text are stop words.
Keywords used in the page title are also used in the page content. That's good!
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.
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
No Apple touch icon is specified.
A viewport "width=device-width, initial-scale=1" is provided.
This page only loads 2 JavaScript files. That's good!
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)
6 images have no alt attribute. The content of alt attributes is used by search engines.
Social Networks
(Nice to have)
There are only a few social sharing widgets on the page. Make your website popular in social networks with social sharing widgets.
Additional markup
(Nice to have)
No additional page markup was found.
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
The structure of headings is missing one or more levels. Do not skip heading levels.
There are 26 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H2 New Books
H2 Announce
H2 Event
H2 Make: Japan
H2 O'Reilly's Village
H2 Ebook Store
H2 Community Blog
H2 Bookfair
H2 Weekly Sales Ranking
H2 Ebook Store Sales Ranking
H2 Feedback
H3 詳説 データベース
H3 初めてのSQL 第3版
H3 Make: Electronics 実践編
H3 プログラミングC# 第8版
H3 PyTorchとfastaiではじめるディープラーニング
H3 UXデザインの法則
H3 ユニコーン企業のひみつ
H3 分子調理の日本食
H3 機械学習による実用アプリケーション構築
H3 広く便利に使える定番アイテム!オリジナルA4クリアフォルダ3枚セットを貰おう!
H3 PyCon JP 2021 プロポーザルの募集開始
H3 「PWA Night Conference 2021」 2021年6月26日に開催
H3 Maker Faireへの出展から「全自動ルービックキューブ」の記事の「Make:」英語版への執筆まで。「妄想」を「行動」へ移して起こったこと
H3 電子書籍『Real World HTTPミニ版』をリリースしました
H3 『仕事ではじめる機械学習』&『前処理大全』著者対談(Part 4)
Some anchor texts are used more than once.
4 links don't have an anchor text.
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 11 external links on this page.
LinkAttributesAnchor text
/app/cartShopping Cart
/online-learning/Online Learning
http://twitter.com/oreilly_japanExternal No Text
http://www.facebook.com/oreill...External No Text
https://www.oreilly.co.jp/feeds/No Text
/books/9784873119540/IMG-ALT [cover photo]
/books/9784873119588/Text duplicate IMG-ALT [cover photo]
/books/9784873119588/Text duplicate 書籍紹介
/books/9784873119434/Text duplicate IMG-ALT [cover photo]
/books/9784873119434/Text duplicate 書籍紹介
/books/9784873119366/Text duplicate IMG-ALT [cover photo]
/books/9784873119366/Text duplicate 書籍紹介
/books/9784873119427/Text duplicate IMG-ALT [cover photo]
/books/9784873119427/Text duplicate 書籍紹介
/books/9784873119496/Text duplicate IMG-ALT [cover photo]
/books/9784873119496/Text duplicate 書籍紹介
/books/9784873119465/Text duplicate IMG-ALT [cover photo]
/books/9784873119465/Text duplicate 書籍紹介
/books/9784873119489/Text duplicate IMG-ALT [cover photo]
/books/9784873119489/Text duplicate 書籍紹介
/books/9784873119502/Text duplicate IMG-ALT [cover photo]
/books/9784873119502/Text duplicate 書籍紹介
/sales/2021/06/ann-pycon-jp-20...PyCon JP 2021 プロポーザルの募集開始
/sales/2021/05/ann-pwa-night-c...「PWA Night Conference 2021」 2021年6月26日に開催
/sales/2021/04/ann-interop-tok...「Interop Tokyo 2021」4月14~16日に開催、オライリー・ジャパンも出展いたします
/sales/2021/03/ann-tech-lion-v...「TechLION vol.37」 - 3月31日にオンラインで開催
/sales/2021/01/ann-pyton-chari...オンラインイベント「Python Charity Talks in Japan 2021.02」開催
https://makezine.jp/blog/2021/...External Maker Faireへの出展から「全自動ルービックキューブ」の記事の「Make:」英語版への執筆まで。「妄想」を「行動」へ移して起こったこと
https://makezine.jp/blog/2021/...External 今年はオンラインで実施!「たのしいmicro:bitコンテスト2021」のお知らせ
https://makezine.jp/blog/2021/...External 555タイマー、オペアンプ、さらにデジタル電子回路の実用的な知識を「発見による学習」で身につける『Make: Electronics 実践編』は6月29日発売!
https://makezine.jp/blog/2021/...External おとでん通信 #13|オンラインの楽しさを再発見。「Maker Faire Kyoto 2021」を振り返る
https://makezine.jp/blog/2021/...External ものをつくらないものづくり #10 — 要約できないもののパフォーマティヴィティ
/editors/archives/2021/06/1954...7月新刊情報『詳説 データベース』
/editors/archives/2021/06/1958...7月新刊情報『初めてのSQL 第3版』
/editors/archives/2021/05/1936...6月新刊情報『プログラミングC# 第8版』
https://www.oreilly.co.jp/ebook/No Text
/books/9784873119366/プログラミングC# 第8版
/books/9784873119472/仕事ではじめる機械学習 第2版
/community/blog/2019/03/real-w...電子書籍『Real World HTTPミニ版』をリリースしました
/community/blog/2018/07/machin...『仕事ではじめる機械学習』&『前処理大全』著者対談(Part 4)
/community/blog/2018/07/machin...『仕事ではじめる機械学習』&『前処理大全』著者対談(Part 3)
/community/blog/2018/07/machin...『仕事ではじめる機械学習』&『前処理大全』著者対談(Part 2)
/community/blog/2018/07/machin...『仕事ではじめる機械学習』&『前処理大全』著者対談(Part 1)
https://makezine.jp/External No Text
/bookstore/No Text
http://goo.gl/5BZG7PExternal 丸善丸の内本店
/books/9784873119465/IMG-ALT cover-image
/books/9784873119465/Text duplicate ユニコーン企業のひみつ
/books/9784873119496/Text duplicate UXデザインの法則
/books/9784873119359/Pythonチュートリアル 第4版
/books/9784873119458/インタフェースデザインの心理学 第2版
/books/9784873119472/Text duplicate 仕事ではじめる機械学習 第2版
/books/9784873116860/Web API: The Good Parts
/books/9784873118369/ゼロから作るDeep Learning ❷
/books/9784873119328/入門 Python 3 第2版
/books/9784873119465/No Text
/books/9784873119465/Text duplicate ユニコーン企業のひみつ
/books/9784873117584/ゼロから作るDeep Learning
/books/9784873115658/Text duplicate リーダブルコード
/books/9784873119427/Text duplicate PyTorchとfastaiではじめるディープラーニング
https://makezine.jp/External Makezine
http://www.ohmsha.co.jp/data/b...External 取扱書店

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://www.oreilly.co.jp/index.shtml"
HTTP header
No X-Powered HTTP header is sent.
This page uses GZip for compressed data transmission.
(Somewhat important)
The page response time is very slow (2.12 seconds). The response time should be less than 0.4 seconds. Slow websites are bad for search engine bots and also result in bad user experience.
This page only loads 2 CSS files. That's ok.
This page only loads 2 JavaScript files. That's good!
The file size of the HTML document is fine (21 kB).

HTTP Response Header

dateThu, 24 Jun 2021 08:21:13 GMT

External factors

(Critically important)
This website is not classified "for adult only".
This website is not listed on the Shallalist.
This website has excellent links from other websites.
This page has backlinks from 91 referring domains.
This page has 451 backlinks.
This page has backlinks from 87 different ip addresses.
Facebook popularity
(Somewhat important)
This page has social activity like shares, comments or likes on facebook.
Listed on Webwiki
(Nice to have)
This website is listed on Webwiki.

Links from Wikipedia

No links from Wikipedia were found.


User-agent: *
Disallow: /mt
Disallow: /manager
Disallow: /app
Disallow: /catalog/catalog0809.pdf
Disallow: /catalog/catalog2011.pdf
Disallow: /catalog/catalog2013.pdf
Disallow: /catalog/catalog2015.pdf
Disallow: /catalog/catalog2016.pdf
Disallow: /catalog/catalog2017.pdf
Disallow: /ebook/download
Disallow: /pub/outgoing
Disallow: /pub/tools
Disallow: /library

Facebook popularity

Shares / Likes / Comments

Only the data for the given URL is shown. We cannot determine the social actions for a linked fan page.

Search preview

www.oreilly.co.jp › index.shtml
O'Reilly Japan - Home

Most important keywords

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

PyCon JP 202144%Check
Books ebook44%Check
eBook Store43%Check

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