This is good practice to use at list next 3 og tags: og:title, og:image, og:description, og:type. You didn't use any one.
You should define url of sitemap.xml in Robots.txt. It's very important to make your site more transparent for Search Engines and increase number of pages in Search Engine results.
FavIcon image is not set or empty. Please add it to this page. Usually it should be done for whole website from settings in CMS or website template.
Server does not use any data compression method. Data compression on http-server allows to improve the page upload speed due to their compression. Searching systems love fast content.
- Text Length:
- Total Length: 19217
We found 109 of links, but it must be not over than 100 links per page
We detected inline-styles of coding design. There are 2 inline styles which robot has found. It's necessary to put them in a special CSS file
- tag: iframe, style: border:none; overflow:hidden; width:100px; height:21px;
- tag: ins, style: display:inline-block;width:250px;height:250px
There are 1 iframe blocks on the page. Avoid them if it's possible, because their content will not be indexed.
Here where they follow:
H2 tags are not set or empty. It's necessary to add one or more titles, which includes the most important keywords and frame them by H2 tags
You have 2 external links that is not using rel="nofollow" link attribute. Add rel="nofollow" to increase the weight of the page.
Use strong tag to mark the most important keywords at your page.
Alt attributes with image description can't found at 20 images. Add the alt attribute and point it in to a brief description of the image. It can help to rank site with keywords from the images.
"Content-Encoding" should have "gzip" value or other correct value.
Good, this page have title tag! Don't forget to double check it for relevant keywords usage! Here is title that you using:
Good, this page have description tag! Don't forget to double check it for relevant keywords usage! Here is Description that you using:
Good, this page have H1 tag! Don't forget to double check it for relevant keywords usage! This is the text that you using here:
Well done, this page using static URL address without GET-settings.
Good! The length are optimal! Do not forget to double check that you use the main keywords in it. This is the text that you using here:
学ぶ・教える．COM - 学習と教育のポータルサイト
学ぶ・教える．COM - 学習と教育のポータルサイト
Good! Just be sure that description use all important keywords.
Size of the page code is about 19 Kb and not exceed recommended amount 500 Kb.
It should indexing normal. No META-robots restrictions was found.
When you using external linking you have 2 things to remember: 1) you lose your page weight and follow it to other pages 2) if you have a lot of external links Search Engine can mark you as doorway or pay-link site. Now this number is 2 % and this is good.
Well done, you can use 22 images on the page! Searching systems loves rich-content and rich variety of content pages.