Lophoc.net - SEO Checker

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Overview of the SEO Check
Meta information
92% 
Page quality
48% 
Page structure
60% 
Link structure
70% 
Server
29% 
External factors
33% 
SEO Score
Response time
0.75 s
File size
30.80 kB
Words
159
Media files
36
Number of links
80 internal / 5 external

Task list of SEO Improvements

Meta specifications

Title
(Critically important)
LopHoc.net - Công cụ cho Lớp học 4.0
The domain is used in the page's title.
There are no duplicate words in the title
Meta description
(Critically important)
Công cụ online hỗ trợ dạy học
The meta description is too short. (186 pixels out of 1000 max pixel length) Optimize description
Crawlability
(Critically important)
There are no problems in accessing the website.
Canonical URL
(Important)
https://lophoc.net/
There is a valid canonical link specified.
Language
(Somewhat important)
Language defined in HTML: vi
Server location: Canada
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)
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 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
authorLopHoc.net
descriptionCông cụ online hỗ trợ dạy học
keywordsCông cụ online hỗ trợ dạy học
robotsINDEX,FOLLOW
viewportwidth=device-width, initial-scale=1, shrink-to-fit=no
langvi
og:urlhttps://lophoc.net
og:typewebsite
og:titleLopHoc.net - Công cụ cho Lớp học 4.0
og:descriptionCông cụ online hỗ trợ dạy học
og:imagehttps://lophoc.net/img/banner-lophoc.jpg
x-ua-compatibleie=edge
charsetutf-8

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Page quality

Content
(Critically important)
There are only 159 words on this page. Use at least 250 words to provide useful information.
No paragraphs were detected.
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.
Frames
(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, shrink-to-fit=no" is provided.
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

URLAlt attributeTitle
https://lophoc.net/img/logo-top.pngLopHoc.net
https://lophoc.net/img/logo-top.pngLopHoc.net
/img/cong-cu/congcu-304.jpgclass
/img/cong-cu/congcu-tictactoe.jpgclass
/img/cong-cu/congcu-tet.jpgclass
/img/cong-cu/congcu-dai-duong.jpgclass
/img/cong-cu/congcu-tui-mu-1.jpgclass
/img/cong-cu/congcu-hop-bi-an.jpgclass
/img/cong-cu/congcu-quay-so.jpgclass
/img/cong-cu/congcu-toan-lop-1.jpgclass
/img/cong-cu/congcu-bang-cuu-chuong.jpgclass
/img/cong-cu/congcu-qrcode.jpgclass
/img/cong-cu/congcu-logo-lop.jpgclass
/img/cong-cu/congcu-beerace.jpgclass
/img/cong-cu/congcu-vong-quay.jpgclass
/img/cong-cu/congcu-bamgio.jpgclass
/img/cong-cu/congcu-link.jpgclass
/img/cong-cu/congcu-quan-ly-tieng-on.jpgclass
/img/cong-cu/congcu-xuc-xac.jpgclass
/img/cong-cu/congcu-bang-diem.jpgclass
/img/cong-cu/congcu-bang-diem-2.jpgclass
/img/cong-cu/congcu-bang-diem-2-doi.jpgclass
/img/cong-cu/congcu-ong-vang-may-man.jpgclass
/img/cong-cu/congcu-xem-gio.jpgclass
/img/cong-cu/congcu-hoc-xem-gio.jpgclass
/img/cong-cu/congcu-xep-hinh.jpgclass
/img/cong-cu/congcu-hen-gio.jpgclass
/img/cong-cu/congcu-ong-nhom.jpgclass
/img/cong-cu/congcu-hoc-ma-morse.jpgclass
/img/cong-cu/congcu-mat-thu.jpgclass
/img/cong-cu/congcu-oan-tu-ti.jpgclass
/img/cong-cu/congcu-hangman.jpgclass
/img/cong-cu/congcu-chuong-vao-lop.jpgclass
/img/cong-cu/congcu-viet-bai.jpgclass
/img/cong-cu/congcu-o-chu.jpgclass
/img/cong-cu/congcu-o-chu-xoan-oc.jpgclass

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.
There are 34 headings on the page. The amount of headings should be in a more proper relation to the amount of text.

Heading structure

Heading levelContent
H3 304
H3 Cờ Carô
H3 Hái hoa dân chủ
H3 Đại dương
H3 Túi mù
H3 Hộp Bí ẩn
H3 Xổ số
H3 Toán Lớp 1
H3 Bảng cửu chương
H3 Tạo QRCode
H3 Tạo Logo Lớp
H3 BeeRace
H3 Vòng quay
H3 Đồng hồ Bấm giờ
H3 Mã truy cập link
H3 Quản lý tiếng ồn
H3 Tung Xúc xắc
H3 Bảng điểm
H3 Bảng điểm 2
H3 Bảng điểm 2 đội
H3 Ong Vàng may mắn
H3 Đồng hồ Xem giờ
H3 Học Xem giờ
H3 Xếp hình
H3 Hẹn giờ
H3 Đoán hình
H3 Học Mã Morse
H3 Mật thư
H3 Oẳn Tù Tì
H3 Hangman
H3 Chuông vào lớp
H3 Viết bài
H3 Tạo ô chữ
H3 Ô chữ xoắn ốc
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 5 external links on this page.

Found links on this page

LinkAttributesAnchor text
https://lophoc.net/IMG-ALT LopHoc.net
https://lophoc.net/Trang chủ
https://lophoc.net/toan/lop-1Lớp 1
https://lophoc.net/toan/lop-2Lớp 2
/toan/bang-cuu-chuongBảng cửu chương
https://www.tiktok.com/@giaola...New window External Subdomain TikTok
https://lophoc.net/Text duplicate IMG-ALT LopHoc.net
https://lophoc.net/Text duplicate Trang chủ
https://lophoc.net/toan/lop-1Text duplicate Lớp 1
https://lophoc.net/toan/lop-2Text duplicate Lớp 2
/toan/bang-cuu-chuongText duplicate Bảng cửu chương
https://www.tiktok.com/@giaola...New window External Subdomain Text duplicate TikTok
https://lophoc.net/cong-cu/linkTạo mã
https://lophoc.net/cong-cu/304304
https://lophoc.net/cong-cu/304IMG-ALT class
/cong-cu/tictactoeCờ Carô
/cong-cu/tictactoeText duplicate IMG-ALT class
https://lophoc.net/cong-cu/tetHái hoa dân chủ
https://lophoc.net/cong-cu/tetText duplicate IMG-ALT class
/cong-cu/dai-duongĐại dương
/cong-cu/dai-duongText duplicate IMG-ALT class
https://lophoc.net/cong-cu/tui-muTúi mù
https://lophoc.net/cong-cu/tui-muText duplicate IMG-ALT class
/cong-cu/hop-bi-anHộp Bí ẩn
/cong-cu/hop-bi-anText duplicate IMG-ALT class
/cong-cu/quay-soXổ số
/cong-cu/quay-soText duplicate IMG-ALT class
https://lophoc.net/toan/lop-1Toán Lớp 1
https://lophoc.net/toan/lop-1Text duplicate IMG-ALT class
/toan/bang-cuu-chuongText duplicate Bảng cửu chương
/toan/bang-cuu-chuongText duplicate IMG-ALT class
https://lophoc.net/cong-cu/qrcodeTạo QRCode
https://lophoc.net/cong-cu/qrcodeText duplicate IMG-ALT class
/cong-cu/logo-lopTạo Logo Lớp
/cong-cu/logo-lopText duplicate IMG-ALT class
/cong-cu/bee-raceBeeRace
/cong-cu/bee-raceText duplicate IMG-ALT class
/cong-cu/vong-quayVòng quay
/cong-cu/vong-quayText duplicate IMG-ALT class
/cong-cu/bam-gioĐồng hồ Bấm giờ
/cong-cu/bam-gioText duplicate IMG-ALT class
https://lophoc.net/cong-cu/linkMã truy cập link
https://lophoc.net/cong-cu/linkText duplicate IMG-ALT class
/cong-cu/quan-ly-tieng-onQuản lý tiếng ồn
/cong-cu/quan-ly-tieng-onText duplicate IMG-ALT class
/cong-cu/xuc-xacTung Xúc xắc
/cong-cu/xuc-xacText duplicate IMG-ALT class
/cong-cu/bang-diemBảng điểm
/cong-cu/bang-diemText duplicate IMG-ALT class
/cong-cu/bang-diem-2Bảng điểm 2
/cong-cu/bang-diem-2Text duplicate IMG-ALT class
/cong-cu/bang-diem-2-doiBảng điểm 2 đội
/cong-cu/bang-diem-2-doiText duplicate IMG-ALT class
/cong-cu/ong-vang-may-manOng Vàng may mắn
/cong-cu/ong-vang-may-manText duplicate IMG-ALT class
/cong-cu/xem-gioĐồng hồ Xem giờ
/cong-cu/xem-gioText duplicate IMG-ALT class
/cong-cu/hoc-xem-gioHọc Xem giờ
/cong-cu/hoc-xem-gioText duplicate IMG-ALT class
/cong-cu/xep-hinhXếp hình
/cong-cu/xep-hinhText duplicate IMG-ALT class
/cong-cu/hen-gioHẹn giờ
/cong-cu/hen-gioText duplicate IMG-ALT class
/cong-cu/ong-nhomĐoán hình
/cong-cu/ong-nhomText duplicate IMG-ALT class
/cong-cu/hoc-ma-morseHọc Mã Morse
/cong-cu/hoc-ma-morseText duplicate IMG-ALT class
/cong-cu/mat-thuMật thư
/cong-cu/mat-thuText duplicate IMG-ALT class
/cong-cu/oan-tu-tiOẳn Tù Tì
/cong-cu/oan-tu-tiText duplicate IMG-ALT class
/cong-cu/hangmanHangman
/cong-cu/hangmanText duplicate IMG-ALT class
/cong-cu/chuong-vao-lopChuông vào lớp
/cong-cu/chuong-vao-lopText duplicate IMG-ALT class
/cong-cu/viet-baiViết bài
/cong-cu/viet-baiText duplicate IMG-ALT class
https://lophoc.net/cong-cu/o-chuTạo ô chữ
https://lophoc.net/cong-cu/o-chuText duplicate IMG-ALT class
/cong-cu/o-chu-xoan-ocÔ chữ xoắn ốc
/cong-cu/o-chu-xoan-ocText duplicate IMG-ALT class
https://lophoc.net/Text duplicate LopHoc.net
https://www.tiktok.com/@giaola...New window External Subdomain Text duplicate TikTok
https://www.facebook.com/giaol...New window External Subdomain Facebook
https://www.youtube.com/@giaol...New window External Subdomain Youtube

Server configuration

HTTP redirects
(Critically important)
This page redirects to "https://lophoc.net/"
HTTP header
(Important)
The used PHP version is outdated and may be a security risk.
The X-powered header is sent within the response header. (unnecessary)
The web server transmits the web page (HTML) in compressed form.
Performance
(Somewhat important)
The page response time of 0.75 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.
The file size of the HTML document is fine (31 kB).

HTTP Response Header

NameValue
dateSun, 03 Aug 2025 20:46:07 GMT
content-typetext/html; charset=UTF-8
x-powered-byPHP/5.6.40
report-to{"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=DKqinlSHg%2BwWZYu2KAN0gKdOtbW5Nyad%2F4aX9mIbBZhNfDqq%2Fn%2F%2Bj6GNUpG870Ld41m7YsTziHSaG2LQ8dKJF4RMJVSRKp2Rzw8%3D"}]}
varyAccept-Encoding
servercloudflare
access-control-allow-origin*
access-control-allow-headersorigin, x-requested-with, content-type
access-control-allow-methodsPUT, GET, POST, DELETE, OPTIONS
alt-svch3=":443"; ma=86400
x-turbo-charged-byLiteSpeed
cf-cache-statusDYNAMIC
nel{"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
content-encodingzstd
cf-ray9698a99bb9d90088-CDG
statuscode200
http_versionHTTP/2

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 43 backlinks.
This page only has few backlinks from 10 different ip addresses.

Links from Wikipedia

No links from Wikipedia were found.

Robots.txt

No valid Robots.txt file was found.

Similar sites

Search preview

lophoc.net
LopHoc.net - Công cụ cho Lớp học 4.0
Công cụ online hỗ trợ dạy học

Most important keywords

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

KeywordResultRecheck
Học66%Check
Lớp học60%Check
LopHoc59%Check
net59%Check
Công59%Check
Công cụ58%Check
Lớp học 4.055%Check
Lớp54%Check
cụ online52%Check
online46%Check
Show more keywords and terms

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