The Seo Tool

SEO Report for: kienthuc.net.vn/kho-tri-thuc/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-1847033.html

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Overview
Report generated on 2025-11-05 at 06:15:57 (UTC +00:00).
2 years ago
59
100
Kinh ngạc lý do khiến Trung Quốc gấp rút xây Vạn Lý Trường Thành
Theo các chuyên gia, đế chế Hung Nô thống trị thảo nguyên châu Á trong 3 thế kỷ và gây ra các cuộc xung đột với Trung Quốc. Vì vậy, Trung Quốc đã gấp rút xây Vạn Lý Trường Thành để bảo vệ biên giới.
https://kienthuc.net.vn/kho-tri-thuc/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-1847033.html
2 high issues
5.6%
10 medium issues
27.8%
5 low issues
13.9%
19 tests passed
52.8%
0.90 seconds
20.59 kB
90 resources
Secure
SEO
Title
The title tag should be between 1 and 60 characters.
The current title has 64 characters.
The title tag is the HTML element that specifies the title of the webpage. The title tag is displayed at the top of your browser, in the search results, as well as in the bookmarks bar.
Learn more
Google
Meta description
The description tag should be between 70 and 160 characters.
The current description has 198 characters.
The meta description is an HTML tag that provides a short and accurate summary of the webpage. The meta description is used by search engines to identify a webpage's topic and provide relevant search results.
Learn more
Google
Canonical
The meta canonical tag is good.
https://kienthuc.net.vn/kho-tri-thuc/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-1847033.html
The canonical tag defines the preferred URL for the current document, which helps search engines reduce duplicate content.
Learn more
Google
Headings
The h1 tag is the same with the title tag.
  1. Kinh ngạc lý do khiến Trung Quốc gấp rút xây Vạn Lý Trường Thành
  1. Theo các chuyên gia, đế chế Hung Nô thống trị thảo nguyên châu Á trong 3 thế kỷ và gây ra các cuộc xung đột với Trung Quốc. Vì vậy, Trung Quốc đã gấp rút xây Vạn Lý Trường Thành để bảo vệ biên giới.
  2. Lãi quý 1 lao dốc 89%, PC1 dự kiến lợi nhuận 6 tháng dưới 30% kế hoạch
  3. Lỗ quý thứ 2 liên tiếp, Cenland "giải quyết nỗi đau" như nào?
  4. Lãi quý 1 của Quốc Cường Gia Lai lao dốc 91%, tồn kho vẫn hơn 7.000 tỷ
  5. Deutche Bank liệu có trở thành Credit Suisse tiếp theo?
  6. Đề xuất thu hồi 3 dự án có nhiều vi phạm ở Lâm Đồng
  7. Đây là 19 chiêu lừa đảo qua điện thoại và mạng xã hội cần chú ý
  8. Lâm Đồng: 70% gói thầu đầu tư công tại Đạ Huoai thuộc về Tuấn Lợi
  9. Bà Rịa - Vũng Tàu: Tạm giữ số lượng lớn mỹ phẩm không có hóa đơn, chứng từ
  10. Kinh doanh dưới giá vốn, HBC tiếp tục báo lỗ nặng 444 tỷ trong quý 1/2023
  11. Khó tin tử tù bị bắn 9 phát súng vào đầu vẫn thoát chết
  12. Dự đoán ngày mới 03/05/2023 cho 12 con giáp: Tý thuận lợi, Tỵ lao đao
  13. Top hiện vật nghi của người ngoài hành tinh, đến chuyên gia cũng khó giải
  14. Từ 2024 - 2028: Ba con giáp hiền lương hưởng lộc, hốt bạc giàu to
  15. Kinh ngạc thế giới ngầm dưới lòng đất ngay trong lòng thủ đô Moscow
  16. Giải mã thảm kịch đèo Dyatlov khiến 9 người chết trong tư thế rùng rợn
  17. Choáng ngợp biệt phủ đẹp như tranh thủy mặc của Jack Ma
  18. Hot girl lai đẹp như búp bê sống, quyến rũ theo thời gian
  19. Cô giáo xinh đẹp tiết lộ lý do không còn xuất hiện bên cạnh Lộc Fuho
  20. Cuộc sống của Võ Hạ Trâm và loạt mỹ nhân lấy chồng Ấn Độ
  21. Rashford ra tay giúp đỡ Alisha Lehmann tại hộp đêm Chinawhite
  22. Hot girl taekwondo Campuchia gây sốt SEA Games 32 là ai?
  23. Tank 300 Cyber ​​Knight “nhái" Mercedes-AMG G63 chỉ 1,1 tỷ đồng
  24. Ảnh hiếm về rừng Amazon thế kỷ XIX
  25. Chồng trẻ Ngô Thanh Vân và loạt sao tự tay nấu ăn cho vợ
  26. Diễn viên đóng bé An phim “Đất phương Nam” giờ ra sao?
  27. Dự đoán ngày mới 03/05/2023 cho 12 con giáp: Tý thuận lợi, Tỵ lao đao
  28. Ảnh hiếm những khoảnh khắc lịch sử khiến bạn không thể rời mắt
  1. Tin tài trợ
  3. Tin tức Kho tri thức mới nhất
  4. Tin hình ảnh mới
The h tags represents the headings of the webpage. The h1 tag is the most important h tag, and describes the main topic of the page, while the rest of the tags describe the sub-topics of the webpage.
Learn more
Mozilla
Content keywords
The content has relevant keywords.
kinh ngạc lý do khiến trung quốc gấp rút xây vạn lý trường thành
The webpage's content should contain relevant keywords that can also be found in the title of the webpage.
Image keywords
The alt attribute specifies an alternate text for an image, if the image cannot be displayed. The alt attribute is also useful for search engines to identify the subject of the image, and helps screen readers describe the image.
Learn more
Google
SEO friendly URL
The URL is SEO friendly.
https://kienthuc.net.vn/kho-tri-thuc/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-1847033.html
The SEO friendly URLs are URLs that contain relevant keywords with the webpage's topic, and contain no special characters besides slashes and dashes.
Learn more
Google
404 page
The website has 404 error pages.
https://kienthuc.net.vn/404-1b3a851bee90f8bc62b03eabd10a91c4
The 404 webpage status inform the users and the search engines that a page is missing.
Learn more
Bing
Robots.txt
The webpage can be accessed by search engines.
A robots.txt file inform the search engines which links from the website can be accessed.
Learn more
Bing
Google
Noindex
The webpage does not have a noindex tag set.
The noindex tag instruct the search engines to not index the webpage.
Learn more
Bing
Google
In-page links
The webpage contains more than 150 links.
  1. https://kienthuc.net.vn/
  2. https://kienthuc.net.vn/
  3. Xã hội
  4. Tuyển sinh
  5. Đọc 30s
  6. Soi - Xét
  7. Sống 4 màu
  8. Hỏi/Đáp
  9. Người tốt - Việc tốt
  10. Cải chính - Xin lỗi
  11. Kho tri thức
  12. Thâm cung
  13. Di sản
  14. Ta & Tây
  15. Giải mã
  16. Phong thủy
  17. Tri thức Việt - Toàn cầu
  18. Thiền
  19. Khoa học & Công nghệ
  20. Khoa học
  21. Công nghệ
  22. Kinh doanh
  23. Tiền - Vàng
  24. Nhà - Đất
  25. Đại gia
  26. Tiêu dùng
  27. Hàng hót
  28. Quân sự
  29. Tin tức
  30. Vũ khí
  31. Quân đội
  32. Quân sự Việt Nam
  33. Thế giới
  34. Thế giới 24h
  35. Nóng - Sâu
  36. Hồ sơ
  37. Đời sống
  38. Ô tô - Xe máy
  39. Xe
  40. Phụ kiện
  41. Dân chơi
  42. Đời sống
  43. Tin tức
  44. Làm đẹp - giảm cân
  45. Mẹ & Bé
  46. Ăn ngon
  47. Dinh dưỡng - Thuốc
  48. Yêu - tám
  49. Giải trí
  50. Chat Sao
  51. VBiz
  52. Showbiz ngoại
  53. Mốt và phong cách
  54. Phim - nhạc
  55. Cộng đồng trẻ
  56. Nhịp sống
  57. Sốt mạng
  58. Yêu
  59. Thể thao
  60. Chơi - Phượt
  61. Bạn đọc - Điều tra
  62. TRENDING
  63. NGHỈ LỄ 30/4- 1/5
  64. SEA GAMES 32
  65. PHIM LẬT MẶT 6: TẤM VÉ ĐỊNH MỆNH
  66. https://kienthuc.net.vn/cac-su-kien-noi-bat.html
  67. Kho tri thức
  68. Vạn Lý Trường Thành bất tử suốt ngàn năm: Lý do cực bất ngờ!
  69. Phát hiện bất ngờ về đoạn nguy hiểm nhất trên Vạn Lý Trường Thành
  70. Di Sản Thế Giới
  71. https://kienthuc.net.vn/javascript:galback();
  72. https://kienthuc.net.vn/javascript:galnext();
  73. Tin tức Kho tri thức mới nhất
  74. https://kienthuc.net.vn/kho-tri-thuc/kho-tin-tu-tu-bi-ban-9-phat-sung-vao-dau-van-thoat-chet-1849628.html
  75. Khó tin tử tù bị bắn 9 phát súng vào đầu vẫn thoát chết
  76. https://kienthuc.net.vn/kho-tri-thuc/du-doan-ngay-moi-03052023-cho-12-con-giap-ty-thuan-loi-ty-lao-dao-1850418.html
  77. Dự đoán ngày mới 03/05/2023 cho 12 con giáp: Tý thuận lợi, Tỵ lao đao
  78. https://kienthuc.net.vn/kho-tri-thuc/top-hien-vat-nghi-cua-nguoi-ngoai-hanh-tinh-den-chuyen-gia-cung-kho-giai-1851113.html
  79. Top hiện vật nghi của người ngoài hành tinh, đến chuyên gia cũng khó giải
  80. https://kienthuc.net.vn/kho-tri-thuc/tu-2024-2028-ba-con-giap-hien-luong-huong-loc-hot-bac-giau-to-1850750.html
  81. Từ 2024 - 2028: Ba con giáp hiền lương hưởng lộc, hốt bạc giàu to
  82. https://kienthuc.net.vn/kho-tri-thuc/kinh-ngac-the-gioi-ngam-duoi-long-dat-ngay-trong-long-thu-do-moscow-1849746.html
  83. Kinh ngạc thế giới ngầm dưới lòng đất ngay trong lòng thủ đô Moscow
  84. https://kienthuc.net.vn/kho-tri-thuc/giai-ma-tham-kich-deo-dyatlov-khien-9-nguoi-chet-trong-tu-the-rung-ron-1850328.html
  85. Giải mã thảm kịch đèo Dyatlov khiến 9 người chết trong tư thế rùng rợn
  86. Tin hình ảnh mới
  87. https://kienthuc.net.vn/kinh-doanh/choang-ngop-biet-phu-dep-nhu-tranh-thuy-mac-cua-jack-ma-1851102.html
  88. Choáng ngợp biệt phủ đẹp như tranh thủy mặc của Jack Ma
  89. https://kienthuc.net.vn/cong-dong-tre/hot-girl-lai-dep-nhu-bup-be-song-quyen-ru-theo-thoi-gian-1851045.html
  90. Hot girl lai đẹp như búp bê sống, quyến rũ theo thời gian
  91. https://kienthuc.net.vn/cong-dong-tre/co-giao-xinh-dep-tiet-lo-ly-do-khong-con-xuat-hien-ben-canh-loc-fuho-1851098.html
  92. Cô giáo xinh đẹp tiết lộ lý do không còn xuất hiện bên cạnh Lộc Fuho
  93. https://kienthuc.net.vn/giai-tri/cuoc-song-cua-vo-ha-tram-va-loat-my-nhan-lay-chong-an-do-1847705.html
  94. Cuộc sống của Võ Hạ Trâm và loạt mỹ nhân lấy chồng Ấn Độ
  95. https://kienthuc.net.vn/cong-dong-tre/rashford-ra-tay-giup-do-alisha-lehmann-tai-hop-dem-chinawhite-1851094.html
  96. Rashford ra tay giúp đỡ Alisha Lehmann tại hộp đêm Chinawhite
  97. https://kienthuc.net.vn/cong-dong-tre/hot-girl-taekwondo-campuchia-gay-sot-sea-games-32-la-ai-1851140.html
  98. Hot girl taekwondo Campuchia gây sốt SEA Games 32 là ai?
  99. https://kienthuc.net.vn/o-to-xe-may/tank-300-cyber-knight-nhai-mercedes-amg-g63-chi-11-ty-dong-1850984.html
  100. Tank 300 Cyber ​​Knight “nhái" Mercedes-AMG G63 chỉ 1,1 tỷ đồng
  101. https://kienthuc.net.vn/the-gioi/anh-hiem-ve-rung-amazon-the-ky-xix-1851184.html
  102. Ảnh hiếm về rừng Amazon thế kỷ XIX
  103. https://kienthuc.net.vn/giai-tri/chong-tre-ngo-thanh-van-va-loat-sao-tu-tay-nau-an-cho-vo-1847780.html
  104. Chồng trẻ Ngô Thanh Vân và loạt sao tự tay nấu ăn cho vợ
  105. https://kienthuc.net.vn/giai-tri/dien-vien-dong-be-an-phim-dat-phuong-nam-gio-ra-sao-1847700.html
  106. Diễn viên đóng bé An phim “Đất phương Nam” giờ ra sao?
  107. https://kienthuc.net.vn/kho-tri-thuc/du-doan-ngay-moi-03052023-cho-12-con-giap-ty-thuan-loi-ty-lao-dao-1850418.html
  108. Dự đoán ngày mới 03/05/2023 cho 12 con giáp: Tý thuận lợi, Tỵ lao đao
  109. https://kienthuc.net.vn/the-gioi/anh-hiem-nhung-khoanh-khac-lich-su-khien-ban-khong-the-roi-mat-1851127.html
  110. Ảnh hiếm những khoảnh khắc lịch sử khiến bạn không thể rời mắt
  111. https://kienthuc.net.vn/
  112. Xã hội
  113. Tuyển sinh
  114. Đọc 30s
  115. Soi - Xét
  116. Sống 4 màu
  117. Hỏi/Đáp
  118. Người tốt - Việc tốt
  119. Cải chính - Xin lỗi
  120. Kho tri thức
  121. Thâm cung
  122. Di sản
  123. Ta & Tây
  124. Giải mã
  125. Phong thủy
  126. Tri thức Việt - Toàn cầu
  127. Thiền
  128. Khoa học & Công nghệ
  129. Khoa học
  130. Công nghệ
  131. Kinh doanh
  132. Tiền - Vàng
  133. Nhà - Đất
  134. Đại gia
  135. Tiêu dùng
  136. Hàng hót
  137. Quân sự
  138. Tin tức
  139. Vũ khí
  140. Quân đội
  141. Quân sự Việt Nam
  142. Thế giới
  143. Thế giới 24h
  144. Nóng - Sâu
  145. Hồ sơ
  146. Đời sống
  147. Ô tô - Xe máy
  148. Xe
  149. Phụ kiện
  150. Dân chơi
  151. Đời sống
  152. Tin tức
  153. Làm đẹp - giảm cân
  154. Mẹ & Bé
  155. Ăn ngon
  156. Dinh dưỡng - Thuốc
  157. Yêu - tám
  158. Giải trí
  159. Chat Sao
  160. VBiz
  161. Showbiz ngoại
  162. Mốt và phong cách
  163. Phim - nhạc
  164. Cộng đồng trẻ
  165. Nhịp sống
  166. Sốt mạng
  167. Yêu
  168. Thể thao
  169. Chơi - Phượt
  170. Bạn đọc - Điều tra
  171. Xem Phong Thuy
  172. Gia Xang Dau
  173. Món Ăn Ngon
  174. Chăm Sóc Bà Bầu
  175. Trang Điểm Làm Đẹp
  176. Máy Bay Mất Tích
  177. http://kienthuc.net.vn/event/phien-quan-is-221.html
  178. Phiến Quân Is
  179. Lãnh Đạo Kim Jong-un
  180. Hot Girl
  181. Hot Boy
  182. Trương Hình Dư
  183. Xem Tuoi Lam An
  184. Thủ Tướng Lý Quang Diệu
  185. Đề Thi Môn Toán
  186. Đề Thi Môn Văn
  187. Đề Thi Môn Hóa Học
  188. Đề thi tốt nghiệp THPT 2022
  189. http://kienthuc.net.vn/event/cuu-thu-tuong-ly-quang-dieu-331.html
  190. https://kienthuc.net.vn/rss.html
  1. https://vietnamdaily.trithuccuocsong.vn/
  2. https://vietnamdaily.net.vn/tai-chinh-ngan-hang/lai-quy-1-lao-doc-89-pc1-du-kien-loi-nhuan-6-thang-duoi-30-ke-hoach-172145.html
  3. Lãi quý 1 lao dốc 89%, PC1 dự kiến lợi nhuận 6 tháng dưới 30% kế hoạch
  4. https://vietnamdaily.net.vn/doanh-nghiep/lo-quy-thu-2-lien-tiep-cenland-giai-quyet-noi-dau-nhu-nao-172144.html
  5. Lỗ quý thứ 2 liên tiếp, Cenland "giải quyết nỗi đau" như nào?
  6. https://vietnamdaily.net.vn/doanh-nghiep/lai-quy-1-cua-quoc-cuong-gia-lai-lao-doc-91-ton-kho-van-hon-7000-ty-172107.html
  7. Lãi quý 1 của Quốc Cường Gia Lai lao dốc 91%, tồn kho vẫn hơn 7.000 tỷ
  8. https://vietnamdaily.net.vn/tai-chinh-ngan-hang/deutche-bank-lieu-co-tro-thanh-credit-suisse-tiep-theo-172110.html
  9. Deutche Bank liệu có trở thành Credit Suisse tiếp theo?
  10. https://vietnamdaily.net.vn/bat-dong-san/de-xuat-thu-hoi-3-du-an-co-nhieu-vi-pham-o-lam-dong-172064.html
  11. Đề xuất thu hồi 3 dự án có nhiều vi phạm ở Lâm Đồng
  12. https://vietnamdaily.net.vn/tin-24/7/day-la-19-chieu-lua-dao-qua-dien-thoai-va-mang-xa-hoi-can-chu-y-172142.html
  13. Đây là 19 chiêu lừa đảo qua điện thoại và mạng xã hội cần chú ý
  14. https://vietnamdaily.net.vn/doanh-nghiep/lam-dong-70-goi-thau-dau-tu-cong-tai-da-huoai-thuoc-ve-tuan-loi-172138.html
  15. Lâm Đồng: 70% gói thầu đầu tư công tại Đạ Huoai thuộc về Tuấn Lợi
  16. https://vietnamdaily.net.vn/tieu-dung-ban-doc/ba-ria-vung-tau-tam-giu-so-luong-lon-my-pham-khong-co-hoa-don-chung-tu-172117.html
  17. Bà Rịa - Vũng Tàu: Tạm giữ số lượng lớn mỹ phẩm không có hóa đơn, chứng từ
  18. https://vietnamdaily.net.vn/doanh-nghiep/kinh-doanh-duoi-gia-von-hbc-tiep-tuc-bao-lo-nang-444-ty-trong-quy-12023-172104.html
  19. Kinh doanh dưới giá vốn, HBC tiếp tục báo lỗ nặng 444 tỷ trong quý 1/2023
  20. https://www.congluan.vn/hoi-bao-toan-quoc-c1995.html
  21. Hội Báo Toàn Quốc 2023
  22. https://congluan.vn/
  23. Đọc Báo
  24. Con số may mắn hôm nay
  25. Đề Thi Môn Tiếng Anh
  26. [email protected]
  27. [email protected]
  28. https://www.dmca.com/Protection/Status.aspx?ID=d683956e-a882-43ba-87b8-a61564332d67
  29. https://www.facebook.com/kienthuc.net.vn.fan
The in-page links should be kept at a minimum, to avoid issues with search engines not being able to crawl additional links from the webpage.
Language
The webpage does not have a language declared.
The lang attribute declares the webpage's language, helping search engines identify the language in which the content is written, and browsers to offer translation suggestions.
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Mozilla
Favicon
The webpage has a favicon.
https://static.kienthuc.net.vn/favicon.ico
The favicon is the icon that is being displayed in the browser's tab, when the webpage is being bookmarked, and sometimes even in search engine results.
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Google
Performance
Text compression
The HTML file is compressed.
The HTML filesize is 20.59 kB.
The text compression helps speeding up the webpage's load by compressing the HTML's content.
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Gzip
Brotli
Google
Load time
The webpage loaded in 0.90 seconds.
The load time indicates the HTML's total load time, and does not include the external resources, such as images, scripts, or other resources.
Page size
The size of the HTML webpage is 20.59 kB.
The page size indicates the HTML's total size, and does not include the external resources, such as images, scripts, or other resources.
HTTP requests
The webpage makes more than 50 HTTP requests.
  1. https://static-cms-kienthuc.epicdn.me/web/jscripts/mobileswitcher.js?v=2021.8.7
  2. https://static-cms-kienthuc.epicdn.me/web/jscripts/main.js?v=2.0
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  22. https://media1.admicro.vn/cms/Arf.min.js
  23. https://js.genieessp.com/t/172/494/a1172494.js
  24. https://js.genieessp.com/t/270/803/a1270803.js
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  26. https://sp.zalo.me/plugins/sdk.js
  27. https://www.googletagmanager.com/gtag/js?id=G-5VZ15DRJC5
  28. https://client.trackpush.com/openchrome.js?v=1.0
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  48. https://d5nxst8fruw4z.cloudfront.net/atrk.gif?account=nB6Bh1aAod00Ed
The HTTP requests represents the number of external resources present on the webpage.
Image format
There are 48 images that are not using the AVIF, WebP format.
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  6. https://images.kienthuc.net.vn/zoomh/800/uploaded/hongnhat/2023_04_20/3/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-Hinh-2.jpg
  7. https://images.kienthuc.net.vn/zoomh/800/uploaded/hongnhat/2023_04_20/3/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-Hinh-3.jpg
  8. https://images.kienthuc.net.vn/zoomh/800/uploaded/hongnhat/2023_04_20/3/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-Hinh-4.jpg
  9. https://images.kienthuc.net.vn/zoomh/800/uploaded/hongnhat/2023_04_20/3/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-Hinh-5.jpg
  10. https://images.kienthuc.net.vn/zoomh/800/uploaded/hongnhat/2023_04_20/3/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-Hinh-6.jpg
  11. https://images.kienthuc.net.vn/zoomh/800/uploaded/hongnhat/2023_04_20/3/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-Hinh-7.jpg
  12. https://images.kienthuc.net.vn/zoomh/800/uploaded/hongnhat/2023_04_20/3/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-Hinh-8.jpg
  13. https://images.kienthuc.net.vn/zoomh/800/uploaded/hongnhat/2023_04_20/3/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-Hinh-9.jpg
  14. https://images.kienthuc.net.vn/zoomh/800/uploaded/hongnhat/2023_04_20/3/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-Hinh-10.jpg
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  28. https://images.kienthuc.net.vn/zoom/110_70/Uploaded/ctvkhotrithuc/2023_04_30/newfolder/9460f71de3d84cd882e2f35f6678634d_JZHV.jpeg
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  34. https://images.kienthuc.net.vn/zoom/110_70/Uploaded/dinhcuc/2023_04_22/tram/0_YKMS.jpg
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  44. https://images.dmca.com/Badges/dmca_protected_sml_120l.png?ID=d683956e-a882-43ba-87b8-a61564332d67
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The images format represents the images that are not served in a next-generation file format. Images served in a next-generation format improve the webpage's load performance.
Learn more
Google
JavaScript defer
There are 28 javascript resources without the defer attribute.
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  2. https://static-cms-kienthuc.epicdn.me/web/jscripts/main.js?v=2.0
  3. https://static-cms-kienthuc.epicdn.me/web/jscripts/jquery-1.9.1.min.js?v=2.0
  4. https://static-cms-kienthuc.epicdn.me/web/JScripts/bootstrap.min.js?v=2.8
  5. https://static-cms-kienthuc.epicdn.me/web/jscripts/jquery.bxslider/jquery.bxslider.min.js?v=2.0
  6. https://static-cms-kienthuc.epicdn.me/web/Jscripts/imagesloaded.pkgd.min.js
  7. https://static-cms-kienthuc.epicdn.me/web/JScripts/jquery.cycle.all.min.js?v=2.0
  8. https://www.googletagservices.com/tag/js/gpt.js
  9. https://static-cms-kienthuc.epicdn.me/web/jscripts/jquery.cookie.js?v=2014
  10. https://static-cms-kienthuc.epicdn.me/web/jscripts/jquery.fixer.js
  11. https://static-cms-kienthuc.epicdn.me/web/jscripts/swfobject.js
  12. https://static-cms-kienthuc.epicdn.me/web/jscripts/jcarousellite.js
  13. https://static-cms-kienthuc.epicdn.me/web/jscripts/datetime.js
  14. https://static-cms-kienthuc.epicdn.me/web/jscripts/iepngfix_tilebg.js?v=2014
  15. https://ssl.p.jwpcdn.com/player/v/7.10.2/jwplayer.js
  16. https://static-cms-kienthuc.epicdn.me/web/jscripts/ui.js?v=2017.1222
  17. https://static-cms-kienthuc.epicdn.me/web/jscripts/log.js?v=2017.1108
  18. https://static-cms-kienthuc.epicdn.me/web/Jscripts/banner.min.js?1
  19. https://kienthuc.net.vn/services/zone-8.ads
  20. https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js
  21. https://static.amcdn.vn/tka/cdn.js
  22. https://media1.admicro.vn/cms/Arf.min.js
  23. https://js.genieessp.com/t/172/494/a1172494.js
  24. https://js.genieessp.com/t/270/803/a1270803.js
  25. https://images.dmca.com/Badges/DMCABadgeHelper.min.js
  26. https://sp.zalo.me/plugins/sdk.js
  27. https://www.googletagmanager.com/gtag/js?id=G-5VZ15DRJC5
  28. https://client.trackpush.com/openchrome.js?v=1.0
The defer attribute allows the browser to download the scripts in parallel and execute them after the webpage has been parsed, improving the webpage's load performance.
Learn more
Google
DOM size
The DOM size is optimal.
The HTML file has 799 DOM nodes.
The DOM size indicates the number of nodes the HTML webpage has.
Learn more
Google
Security
HTTPS encryption
The webpage uses HTTPS encryption.
The HTTPS encryption helps protecting the user's security and privacy.
Learn more
Google
HTTP security
HTTP security not good now. Read detail to know how to protect your site.
  1. *
HTTP security are a subset of HTTP headers that is related specifically to security. They are exchanged between a client (usually a web browser) and a server to specify the security details of HTTP communication.
Learn more
Mozilla
Mixed content
There are no mixed content resources on the webpage.
The mixed content is the content that is loaded over the HTTP connection while the webpage itself was loaded over HTTPS connection.
Learn more
Mozilla
Google
Server signature
The webpage has a public server signature.
Universe
The server signature is the public identity of a web server which contains information that could be used to exploit known vulnerabilities.
Learn more
nginx
Apache
Unsafe cross-origin links
The webpage has 24 unsafe cross-origin links.
Plaintext email
Email addresses posted in public are likely to be fetched by crawlers and then collected in lists used for spam.
Miscellaneous
Code Quality
Semantic HTML used & no tables detected throughout.
Have 0 table tags detected.
Using the right code in the right situation ensures the site will render correctly across a wide range of devices. Incorrect code can result in worse search engines rankings and a bad user experience.
Structured data
The webpage has structured data.
  1. og:type article
  2. og:url https://kienthuc.net.vn/kho-tri-thuc/kinh-ngac-ly-do-khien-trung-quoc-gap-rut-xay-van-ly-truong-thanh-1847033.html
  3. og:site_name trithuccuocsong.vn
  4. og:image https://images.kienthuc.net.vn/zoom/800/uploaded/hongnhat/2023_04_20/3/van-10_1_UGNJ.jpg
  5. og:title Kinh ngạc lý do khiến Trung Quốc gấp rút xây Vạn Lý Trường Thành
  6. og:description Theo các chuyên gia, đế chế Hung Nô thống trị thảo nguyên châu Á trong 3 thế kỷ và gây ra các cuộc xung đột với Trung Quốc. Vì vậy, Trung Quốc đã gấp rút xây Vạn Lý Trường Thành để bảo vệ biên giới.
The structured data tags help the search engines better understand the content of the webpage, and allows them to create rich snippets in search results.
Learn more
Twitter
Schema.org
Open Graph
Bing
Google
Meta viewport
The meta viewport tag is missing or is empty.
The meta viewport tag instruct the browsers how to render the viewport of the webpage.
Learn more
Mozilla
Google
Character set
The webpage does not have a charset declared.
The meta charset tag specifies the character encoding, helping the browsers to better render the characters and symbols on the webpage.
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Mozilla
Sitemap
No sitemaps found.
Sitemaps inform search engines about pages available for crawling on the website.
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Bing
Google
Social
The webpage has 1 social links.
Social media presence is becoming increasingly important as a ranking factor for search engines to validate a website's trustworthiness and authority.
Content length
The webpage has 3,058 words.
The content length represents the number of words found on the webpage. The webpage should contain a decent amount of words.
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Google
Text to HTML ratio
The text to HTML ratio is 24%.
The text to HTML ratio represents the percentage of actual text compared to the percentage of HTML code on the webpage.
Inline CSS
The webpage contains inline CSS code.
  1. width: 200px;margin-left: 25px;
  2. display:inline-block;margin:0 5px;vertical-align: text-top;
  3. position:relative;
  4. min-height: 600px;
  5. padding: 0 5px;
  6. border: none; overflow: hidden; height: 21px; width: 120px;
  7. margin-right: 5px;line-height: 20px;display: inline-block;float: left;
  8. float: right; width: 720px;
  9. text-decoration: underline;
  10. text-decoration: underline;
  11. clear: both;
  12. margin-top: 10px;
  13. margin-bottom:10px;text-align: center;
  14. margin-bottom:10px;text-align: center;
  15. margin-bottom:10px;text-align: center;
  16. border-top: none;
  17. margin-top: 20px;
  18. border-top: none; margin-top: 10px;
  19. margin-top: 20px;
  20. float: right; width: 300px
  21. clear: both;
  22. bottom: 0px; left: 5px; position: fixed; z-index: 11;
  23. bottom: 5px; right: 5px; position: fixed; z-index: 11; display:block;
  24. clear: both;
  25. text-align: center;
  26. width:500px
  27. margin-left:20px;
  28. display:none
The style attribute contains CSS style rules that are applied to the element. Inline CSS code unnecessarily increases the webpage's size, and can be moved in an external CSS file.
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Mozilla
Deprecated HTML
There are no deprecated HTML tags on the webpage.
The deprecated tags represents the tags that are not supported HTML5 standard anymore, and could cause the webpage to be rendered incorrectly.
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Tutorialspoint
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