App.onluyen.vn - SEO Checker

Overview of the SEO Check
Meta information
59% 
Page quality
51% 
Page structure
58% 
Link structure
0% 
Server
97% 
External factors
12% 
SEO Score
Response time
0.03 s
File size
22.90 kB
Words
0
Media files
0
Number of links
0 internal / 0 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
Ôn luyện
The page title is too short. (80 pixels of 580 max pixel length) Optimize title
There are no duplicate words in the title
Meta description
(Critically important)
Ôn luyện sẽ giúp bạn xác định chính xác kiến thức bị hổng để tập trung đào sâu, làm đúng làm tiếp câu khó hơn, làm sai có hướng dẫn giải chi tiết. Bạn có thể ôn luyện tất các môn Toán, Ngữ văn, Tiếng anh, Vật lý, Hóa học, Sinh học, Lịch sử, Địa lý, Giáo dục công dân...Ôn luyện để sẵn sàng cho kỳ thi THPT Quốc gia nhé!
The meta description is too long: 1994 pixels from max. 1000 pixels. Optimize description
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: vi
Server location: Germany
The following language is defined by HTML: vi
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
viewportwidth=device-width, initial-scale=1.0,maximum-scale=1.4,shrink-to-fit=no,user-scalable=0
keywordonluyen.vn
descriptionÔn luyện sẽ giúp bạn xác định chính xác kiến thức bị hổng để tập trung đào sâu, làm đúng làm tiếp câu khó hơn, làm sai có hướng dẫn giải chi tiết. Bạn có thể ôn luyện tất các môn Toán, Ngữ văn, Tiếng anh, Vật lý, Hóa học, Sinh học, Lịch sử, Địa lý, Giáo dục công dân...Ôn luyện để sẵn sàng cho kỳ thi THPT Quốc gia nhé!
msapplication-TileColor#ffffff
msapplication-TileImage/ms-icon-144x144.png
langvi
fb:app_id2010130669301479
og:typewebsite
og:titleÔn luyện Toán, Văn, Anh, Lý, Hóa, Sinh, Sử, Địa lý và Giáo dục công dân
og:descriptionÔn luyện sẽ giúp bạn xác định chính xác kiến thức bị hổng để tập trung đào sâu, làm đúng làm tiếp câu khó hơn, làm sai có hướng dẫn giải chi tiết. Bạn có thể ôn luyện tất các môn Toán, Ngữ văn, Tiếng anh, Vật lý, Hóa học, Sinh học, Lịch sử, Địa lý, Giáo dục công dân...Ôn luyện để sẵn sàng cho kỳ thi THPT Quốc gia nhé!
og:urlhttps://www.onluyen.vn/
og:site_nameÔn luyện
X-UA-CompatibleIE=edge
charsetutf-8

Automatically check app.onluyen.vn including all subpages at once!

Try for free
Guaranteed free of charge during trial period.

Page quality

Content
(Critically important)
There are only 0 words on this page. Use at least 250 words to provide useful information.
No paragraphs were detected.
No placeholders texts or images were found.
Frames
(Critically important)
This page does not use a frameset.
Mobile optimization
(Somewhat important)
This page loads 4 JavaScript files. This may affect the load time negatively.
A viewport "width=device-width, initial-scale=1.0,maximum-scale=1.4,shrink-to-fit=no,user-scalable=0" 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)
Alt text (alternative text) is correctly used on all found images.
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.
HTTPS
(Somewhat important)
This website uses HTTPS to protect privacy and integrity of the exchanged data.
All included files are also transferred via HTTPS.

Media list

No media files were found.

Page structure

H1 heading
(Critically important)
There is no H1 heading specified.
Headings
(Important)
There are no headings specified on the page. Headings are important for search engine optimization and help to structure your content.

Heading structure

No headings were found.
Baselink: /
This page seems to be an entry page, because only very few links were found.
There are no external links on this page.
No internal links were found.

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://app.onluyen.vn/"
HTTP header
(Important)
No X-Powered HTTP header is sent.
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
This page loads 4 JavaScript files. This may affect the load time negatively.
The page response time is excellent with 0.03 seconds.
This page only loads 2 CSS files. That's ok.
The file size of the HTML document is fine (23 kB).

HTTP Response Header

NameValue
content-typetext/html
transfer-encodingchunked
connectionkeep-alive
last-modifiedFri, 23 May 2025 03:13:39 GMT
serverAmazonS3
content-encodinggzip
dateSat, 24 May 2025 05:35:32 GMT
etagW/"85e67f705f04c5aa3b955d3e96da3389"
varyAccept-Encoding
x-cacheHit from cloudfront
via1.1 54458302557dcee9766f255184a02288.cloudfront.net (CloudFront)
x-amz-cf-popFRA56-P10
x-amz-cf-id7uOKH2H5mVljarzsw3WX5bJpF6P7YtfTKz1QKt77_q_rBIuqRkg7Tg==
age23459
statuscode200
http_versionHTTP/1.1

External factors

This page has only a few links from other websites.
This page only has backlinks from 4 referring domains.
This page only has 8 backlinks.
This page only has few backlinks from 4 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Search preview

app.onluyen.vn
Ôn luyện
Ôn luyện sẽ giúp bạn xác định chính xác kiến thức bị hổng để tập trung đào sâu, làm đúng làm tiếp câu khó hơn, làm sai có hướng dẫn giải chi tiết. Bạn có thể ôn luyện tất các môn Toán, Ngữ văn, Tiếng anh, Vật lý, Hóa học, Sinh học, Lịch sử, Địa lý, Giáo dục công dân...Ôn luyện để sẵn sàng cho kỳ thi THPT Quốc gia nhé!

Most important keywords

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

KeywordResultRecheck
Ôn luyện26%Check
luyện23%Check
làm11%Check
bạn11%Check
xác11%Check
học11%Check
giúp11%Check
định11%Check
chính11%Check
kiến11%Check

Automatically check app.onluyen.vn including all subpages at once!

Try for free
Guaranteed free of charge during trial period.

Cookie Policy

We use cookies to make our site work and also for analytics and advertising purposes. You can enable or disable optional cookies as desired. See the following links for more information.

We need these so the site can function properly

So we can better understand how visitors use our website

So we can serve you tailored ads and promotions