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Report generated 9 months ago
https://pantado.edu.vn
Your general SEO Checkup Score
Archived
53/100
SEO Score
Average SEO score of top 100 sites: 74%
This website received an SEO score of 53 out of 100, which is below the average score of 74. However, there are 28 important issues that need to be fixed to improve your website's ranking on search engines and enhance its overall performance.
28 Failed
2 Warnings
42 Passed
Issues to fix
HIGH
To provide a good user experience, sites should aim for a Largest Contentful Paint duration of 2.5 seconds or less.
HIGH
To provide a good user experience, sites should aim for a Cumulative Layout Shift score of 0.1 or less.
HIGH
To address URL canonicalization issues, it is recommended to select a primary URL for your webpage and set up redirects from all other variations to the preferred one.
HIGH
Minify all JavaScript files to reduce page size and loading time.
HIGH
Connect your webpage with social media networks using APIs or AddThis, as social signals are becoming increasingly important for search engines to validate a site's trustworthiness and authority.
HIGH
To improve the website experience for your visitors, it is recommended to eliminate any render-blocking resources on this webpage.
HIGH
Using images in a modern format can significantly reduce the file size and improve the loading speed of a webpage, providing a better user experience and potentially increasing engagement.
HIGH
Users may abandon pages that take longer than 5 seconds to load, resulting in a potential loss of up to 50% of visitors. Faster loading pages can lead to increased traffic, better conversions, and higher sales.
HIGH
Add descriptive and relevant "alt" attributes to all "img" tags to improve website accessibility.
HIGH
HTTP/2 protocol offers several key improvements, including faster page load times, improved performance, better security and more efficient use of network resources.
HIGH
Consider reducing the HTML size to improve loading times and retain visitors.
HIGH
By creating a custom 404 error page with helpful links and information, users are more likely to stay on the site and continue to explore.
MEDIUM
JavaScript errors can impact user experience and may prevent users from viewing the page properly.
MEDIUM
Consider adding cache headers for JavaScript resources to speed up the webpage for returning users.
MEDIUM
Serve properly sized images to reduce page loading times and to improve user's experience.
MEDIUM
Consider adding cache headers for images to improve website performance. With cache headers, browsers can cache images and serve them quickly to returning visitors, rather than re-fetching them each time.
MEDIUM
Avoid using distorted images, as they can have a negative impact on the user experience.
MEDIUM
Reducing the Document Object Model (DOM) size can lead to faster page loading times, improved site performance, and better user experience by decreasing the amount of time it takes for the browser to process and render the page.
MEDIUM
Consider adding cache headers for CSS resources to speed up the webpage for returning users.
MEDIUM
Avoid performance and security issues by adding "rel=noopener" or "rel=noreferrer" to your "target=_blank" links.
LOW
Resolving errors identified by the Chrome DevTools Console can improve user experience.
LOW
Without an SPF record, spammers can easily spoof emails from this domain, potentially leading to compromised email security and deliverability issues.
LOW
For security reasons, it is recommended to turn off the server signature.
LOW
Using more than 20 HTTP requests on a webpage can negatively impact the loading time.
LOW
Consider moving inline CSS styles to an external stylesheet to improve site performance and maintain separation of content and design.
LOW
Consider adding the Strict-Transport-Security header to your webpage to ensure that web traffic is encrypted over HTTPS, mitigating the risk of man-in-the-middle attacks and other security threats.
Common SEO issues
Score: 66
Failed: 7
Warnings: 1
Passed: 18
Meta Title Test100% of top 100 sites passed
  • This webpage is using a title tag.
Text: Học Tiếng Anh Online/Trực Tuyến 1 kèm 1 Cho Bé Tại Pantado
Length: 58 characters
Meta Description Test97% of top 100 sites passed
  • This webpage is using a meta description tag.
Text: Khóa học tiếng Anh online cho trẻ em của trung tâm Pantado giúp trẻ tự tin qua những buổi dạy tiếng Anh trực tiếp 1 kèm 1 được thiết kế riêng để phù hợp với khả năng và đem lại hiệu quả cho bé.
Length: 193 characters
Google Search Results Preview Test
Desktop version
https://pantado.edu.vn/Học Tiếng Anh Online/Trực Tuyến 1 kèm 1 Cho Bé Tại PantadoKhóa học tiếng Anh online cho trẻ em của trung tâm Pantado giúp trẻ tự tin qua những buổi dạy tiếng Anh trực tiếp 1 kèm 1 được thiết kế riêng để phù hợp với khả năng và đem lại hiệu quả cho bé.
Mobile version
https://pantado.edu.vn/Học Tiếng Anh Online/Trực Tuyến 1 kèm 1 Cho Bé Tại PantadoKhóa học tiếng Anh online cho trẻ em của trung tâm Pantado giúp trẻ tự tin qua những buổi dạy tiếng Anh trực tiếp 1 kèm 1 được thiết kế riêng để phù hợp với khả năng và đem lại hiệu quả cho bé.
Social Media Meta Tags Test83% of top 100 sites passed
  • This webpage is using social media meta tags.
Open Graph Meta Tags
og:title
Học Tiếng Anh Online/Trực Tuyến 1 kèm 1 Cho Bé Tại Pantado
og:description
Khóa học tiếng Anh online cho trẻ em của trung tâm Pantado giúp trẻ tự tin qua những buổi dạy tiếng Anh trực tiếp 1 kèm 1 được thiết kế riêng để phù hợp với khả năng và đem lại hiệu quả cho bé.
og:url
https://pantado.edu.vn
Most Common Keywords Test
  • There is likely no optimal keyword density (search engine algorithms have evolved beyond keyword density metrics as a significant ranking factor). It can be useful, however, to note which keywords appear most often on your page and if they reflect the intended topic of your page. More importantly, the keywords on your page should appear within natural sounding and grammatically correct copy.
72tiếng48pantado42trình39giáo33mình
Keywords Usage Test81% of top 100 sites passed
  • The most common keywords of this webpage are distributed well across the important HTML tags. This helps search engines to properly identify the topic of this webpage.
Keyword
Title tag
Meta description
Headings
tiếng
pantado
trình
giáo
mình
Keywords Cloud Test
biệtbuổicambridgechiachuyênchuẩncháuchínhchúngchươngchấtchứngcàngcáchcùngcũngdiệndàngdànhdụnggiangiaogiáogiúpgiảnggiớihiểuhoànhuynhhànhhìnhhứngkháckhóakhôngkiếnkiểmkiệnluyệnlượngmiễnmìnhngaynghiệmngoàingàyngônngườinhiềunhấtnhậnnhậtnhữngnăngonlinepantadophanphápphátphútphươngquyếtquốcriêngsinhsángthamtheothiếtthànhthêmthíchthôngthấythầnthầythờithứcthựctiếngtiếptoàntriểntrongtrêntrìnhtrườngtrảitrựctuổitươngviênviệcđiềuđiệpđìnhđăngđượcđồngđộng
Competitor Domains Test
Understand your competitors' SEO and backlink profile

Get related competitors and their domain authority score in relation to your domain.

Heading Tags Test70% of top 100 sites passed
  • This webpage contains too many H2 tags! H2 tags should re-inforce the related content of your page to search engines - too many tags may make the topic less clear, or look like spam tactics. Consider using less than 10 H2 tags.
H1 tags
Học Tiếng Anh Online/Trực Tuyến 1 kèm 1 Cho Bé Tại Pantado
H2 tags
MỌI TRẺ EM VIỆT NAM ĐỀU ĐƯỢC HƯỞNG CÁCH GIÁO DỤC TIẾNG ANH ONLINE CHẤT LƯỢNG TỐT NHẤT
Trẻ đắm chìm trong môi trường Anh Ngữ
Lộ trình học thiết kế riêng
Tương tác 100% trong lớp học
Chương trình chuẩn quốc tế
Giáo viên trình độ bản ngữ
TRẺ ĐƯỢC THAM GIA CÁC LỚP HỌC VUI VẺ, TẠO HỨNG THÚ VỚI VIỆC HỌC TIẾNG ANH ONLINE BỞI VÌ PANTADO ĐÃ LÀM NHƯ VẬY TRONG 7 NĂM HÌNH THÀNH VÀ PHÁT TRIỂN
CHƯƠNG TRÌNH ĐÀO TẠO HỌC TIẾNG ANH ONLINE/ TRỰC TUYẾN 1 KÈM 1 TẠI PANTADO
Tiếng Anh chuẩn Cambridge
Tiếng Anh Chuẩn Bộ Giáo Dục
Luyện Thi Chứng Chỉ Quốc Tế
Tiếng Anh Giao Tiếp Cho Trẻ
ĐỘI NGŨ GIÁO VIÊN DẠY TIẾNG ANH ONLINE ĐA QUỐC GIA SỬ DỤNG TIẾNG ANH LÀ NGÔN NGỮ CHÍNH
HỆ THỐNG HỌC TẬP
Tối đa hóa sự tương tác, cảm hứng học tiếng Anh online cho trẻ với giáo viên kèm riêng 1-1
Đánh giá về PANTADO
Tin Tức & Sự Kiện
Báo chí nói gì về PANTADO
Robots.txt Test94% of top 100 sites passed
  • This website is using a robots.txt file.
Sitemap Test75% of top 100 sites passed
  • This website has a sitemap file.
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SEO Friendly URL Test40% of top 100 sites passed
  • All links from this webpage are SEO friendly.
Image Alt Test71% of top 100 sites passed
  • This webpage is using "img" tags with empty or missing "alt" attribute!
See full list
Responsive Image Test38% of top 100 sites passed
  • Not all images in this webpage are properly sized! This webpage is serving images that are larger than needed for the size of the user's viewport.
See results list
Image Aspect Ratio Test72% of top 100 sites passed
  • Not all image display dimensions match the natural aspect ratio! Fix aspect ratio issues to avoid distorted images on this website!
See results list
Inline CSS Test2% of top 100 sites passed
  • This webpage is using inline CSS styles!
See results list
Deprecated HTML Tags Test99% of top 100 sites passed
  • This webpage does not use HTML deprecated tags.
Google Analytics Test69% of top 100 sites passed
  • This webpage is using Google Analytics.
Favicon Test100% of top 100 sites passed
  • favicon
    This website appears to have a favicon.
JS Error Test74% of top 100 sites passed
  • We've found JavaScript errors on this webpage!
See results list
Console Errors Test33% of top 100 sites passed
  • This webpage has some errors caught by the Chrome DevTools Console!
See results list
Charset Declaration Test100% of top 100 sites passed
  • This webpage has a character encoding declaration.
Content-Type: text/html; charset=UTF-8
Social Media Test80% of top 100 sites passed
  • This webpage is not connected with social media using the API's provided by Facebook, Google +, Twitter, Pinterest, or using addthis.com
Speed optimizations
Score: 34
Failed: 12
Warnings: 1
Passed: 10
HTML Page Size Test34% of top 100 sites passed
DOM Size Test17% of top 100 sites passed
  • The Document Object Model (DOM) of this webpage has 2,835 nodes which is greater than the recommended value of 1,500 nodes! A large DOM size negatively affects site performance and increases the page load time.
HTML Compression/GZIP Test96% of top 100 sites passed
  • This webpage is successfully compressed using gzip compression on your code. The HTML code is compressed from 202.55 Kb to 37.42 Kb (82% size savings). This helps ensure a faster loading webpage and improved user experience.
Site Loading Speed Test68% of top 100 sites passed
  • The loading time of this webpage (measured from N. Virginia, US) is around 8.86 seconds and is greater than the average loading speed which is 5 seconds!
Accurate loading speed and website loading speed monitor

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JS Execution Time Test79% of top 100 sites passed
  • The JavaScript code used by this webpage is executed in less than 2 seconds.
Page Objects Test
  • This webpage is using more than 20 http requests, which can slow down page loading and negatively impact user experience!
Content size by content type
Content type
Percent
Size
image
88.2 %
7.49 Mb
javascript
6.2 %
538.96 Kb
font
3.0 %
260.48 Kb
css
1.4 %
124.34 Kb
other
0.9 %
77.71 Kb
html
0.2 %
20.91 Kb
TOTAL
100%
8.49 Mb
Requests by content type
Content type
Percent
Requests
image
58.3 %
84
javascript
16.7 %
24
css
11.1 %
16
font
10.4 %
15
other
2.8 %
4
html
0.7 %
1
TOTAL
100%
144
Content size by domain
Domain
Percent
Size
pantado.edu.vn
90.7 %
7.69 Mb
fonts.gstatic.com
1.7 %
148.37 Kb
embed.tawk.to
1.6 %
139.68 Kb
i.ytimg.com
1.6 %
135.18 Kb
ka-f.fontawesome.com
1.1 %
92.28 Kb
cdnjs.cloudflare.com
1.0 %
89.12 Kb
googletagmanager.com
1.0 %
87.69 Kb
w.ladicdn.com
0.9 %
79.68 Kb
cdn.jsdelivr.net
0.4 %
32.89 Kb
images.dmca.com
0.0 %
3.41 Kb
Other
0.0 %
3.49 Kb
TOTAL
100%
8.49 Mb
Requests by domain
Domain
Percent
Requests
pantado.edu.vn
71.5 %
103
fonts.gstatic.com
9.0 %
13
embed.tawk.to
5.6 %
8
i.ytimg.com
4.2 %
6
cdnjs.cloudflare.com
2.1 %
3
cdn.jsdelivr.net
1.4 %
2
ka-f.fontawesome.com
1.4 %
2
va.tawk.to
1.4 %
2
googletagmanager.com
0.7 %
1
w.ladicdn.com
0.7 %
1
Other
2.1 %
3
TOTAL
100%
144
Page Cache Test (Server Side Caching)100% of top 100 sites passed
  • This webpage is using a caching mechanism. Caching helps speed page loading times as well as reduces server load.
Flash Test100% of top 100 sites passed
  • This webpage does not include flash objects (an outdated technology that was sometimes used to deliver rich multimedia content). Flash content does not work well on mobile devices, and is difficult for crawlers to interpret.
CDN Usage Test96% of top 100 sites passed
  • This webpage is not serving all resources (images, javascript and css) from CDNs!
See results list
Modern Image Format Test32% of top 100 sites passed
  • This webpage is not serving images in a modern format! Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
See results list
Image Metadata Test
  • This webpage is not using images with large metadata.
Image Caching Test99% of top 100 sites passed
See results list
JavaScript Caching Test98% of top 100 sites passed
  • This webpage is not using cache headers for JavaScript resources! Setting cache headers can help to speed up the webpage for returning users.
See results list
CSS Caching Test98% of top 100 sites passed
  • This webpage is not using cache headers for CSS resources! Setting cache headers can help to speed up the webpage for returning users.
See results list
JavaScript Minification Test93% of top 100 sites passed
  • This webpage is using JavaScript files that are not minified!
See results list
CSS Minification Test97% of top 100 sites passed
  • All CSS resources used by this webpage are minified.
See results list
Render Blocking Resources Test29% of top 100 sites passed
  • This webpage is using render blocking resources! Eliminating render-blocking resources can help this webpage to load significantly faster and will improve the website experience for your visitors.
See results list
Nested Tables Test99% of top 100 sites passed
  • This webpage is not using nested tables. This speeds up page loading time and optimizes the user experience.
Frameset Test100% of top 100 sites passed
  • This webpage does not use frames.
Doctype Test100% of top 100 sites passed
  • This webpage has a doctype declaration.
<!DOCTYPE html>
URL Redirects Test96% of top 100 sites passed
  • This URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).
Largest Contentful Paint Test
  • The Largest Contentful Paint duration of this webpage is 4.7 seconds. To provide a good user experience, sites should strive to have Largest Contentful Paint of 2.5 seconds or less.

4.7 s

2.5 s

4 s

Largest Contentful Paint element within the viewport:
<img class="d-block w-100" src="https://pantado.edu.vn/storage/media/t0sZX51HtfGpd...">
Cumulative Layout Shift Test
  • The CLS score of this webpage is 0.289. To provide a good user experience, sites should strive to have a CLS score of 0.1 or less.

0.289

0.1

0.25

DOM element which contributes the most to CLS score:
Text: MỌI TRẺ EM VIỆT NAM ĐỀU ĐƯỢC HƯỞNG CÁCH GIÁO DỤC TIẾNG ANH ONLINE CHẤT LƯỢNG TỐT...
Html: <section class="education tung123">
Score: 0.2789
Server and security
Score: 55
Failed: 5
Warnings: 0
Passed: 5
URL Canonicalization Test92% of top 100 sites passed
SSL Checker and HTTPS Test100% of top 100 sites passed
  • This website is successfully using HTTPS, a secure communication protocol over the Internet.

The certificate is not used before the activation date.

The certificate has not expired.

The hostname "pantado.edu.vn" is correctly listed in the certificate.

The certificate should be trusted by all major web browsers.

The certificate was not revoked.

The certificate was signed with a secure hash.

Certificate Chain:
Server certificate
Common name
pantado.edu.vn
Subject Alternative Names (SANs)
pantado.edu.vn
Not valid before
Mon, July 3o 2023, 5:54:06 pm (z)
Not valid after
Sun, October 1o 2023, 5:54:05 pm (z)
Signature algorithm
sha256WithRsaEncryption
Issuer
R3
Intermediate certificate
Common name
R3
Organization
Let's Encrypt
Location
US
Not valid before
Fri, September 4o 2020, 12:00:00 am (z)
Not valid after
Mon, September 15o 2025, 4:00:00 pm (z)
Signature algorithm
sha256WithRsaEncryption
Issuer
ISRG Root X1
Root certificate
Common name
ISRG Root X1
Organization
Internet Security Research Group
Location
US
Not valid before
Thu, June 4o 2015, 11:04:38 am (z)
Not valid after
Mon, June 4o 2035, 11:04:38 am (z)
Signature algorithm
sha256WithRsaEncryption
Issuer
ISRG Root X1
Mixed Content Test (HTTP over HTTPS)100% of top 100 sites passed
  • This webpage does not use mixed content - both the initial HTML and all other resources are loaded over HTTPS.
HTTP2 Test92% of top 100 sites passed
  • This webpage is not using the HTTP/2 protocol!
HSTS Test
  • This webpage is not using the Strict-Transport-Security header! This is a security header that was created as a way to force the browser to use secure connections when a site is running over HTTPS.
Safe Browsing Test100% of top 100 sites passed
  • This website is not currently listed as suspicious (no malware or phishing activity found).
Server Signature Test88% of top 100 sites passed
Server: Apache/2.4.52 (Ubuntu)
Directory Browsing Test100% of top 100 sites passed
  • Directory browsing is disabled for this website.
Plaintext Emails Test93% of top 100 sites passed
  • This webpage does not include email addresses in plaintext.
Mobile usability
Score: 100
Failed: 0
Warnings: 0
Passed: 3
Meta Viewport Test94% of top 100 sites passed
  • This webpage is using a viewport meta tag.
<meta name="viewport" content="width=device-width, initial-scale=1" />
Media Query Responsive Test99% of top 100 sites passed
  • This webpage is using CSS media queries, which is the base for responsive design functionalities.
Mobile Snapshot Test
Mobile view
Advanced SEO
Score: 58
Failed: 4
Warnings: 0
Passed: 6
Structured Data Test59% of top 100 sites passed
  • This webpage is using structured data.
See results list
Custom 404 Error Page Test75% of top 100 sites passed
  • This website is not using a custom 404 error page! Default 404 error pages result in a poor experience - it can mislead users into thinking an entire site is down or broken, greatly increases the chance they leave the website entirely, and looks unprofessional. We recommend to have a custom 404 error page in order to improve the website's user experience by letting users know that only a specific page is missing/broken (and not the entire site), providing them helpful links, the opportunity to report bugs, and potentially track the source of broken links.
Noindex Tag Test99% of top 100 sites passed
  • This webpage does not use the noindex meta tag. This means that it can be indexed by search engines.
Canonical Tag Test95% of top 100 sites passed
  • This webpage is using the canonical link tag. This tag specifies that the URL: https://pantado.edu.vn/ is preferred to be used in search results. Please ensure that this specification is correct, as canonical tags are often hard-coded and may not always reflect the latest changes in a site's URL structure.
<link href="https://pantado.edu.vn" rel="canonical"/>
Nofollow Tag Test
  • This webpage is using the nofollow meta tag! We recommend to use this tag carefully since search engines will not crawl all links from this webpage.
See results list
Disallow Directive Test
  • Your robots.txt file includes a disallow command which instructs search engines to avoid certain parts of your website! You are advised to confirm if access to these resources or pages are intended to be blocked (e.g., if they contain internal-only content or sensitive information).
See results list
Meta Refresh Test95% of top 100 sites passed
  • This webpage is not using a meta refresh tag.
SPF Records Test94% of top 100 sites passed
  • This DNS server is not using an SPF record! SPF (Sender Policy Framework) allows administrators to specify which hosts are allowed to send mail from a given domain by creating a specific SPF record or TXT record in the Domain Name System (DNS). You can find more information about SPF records here.
Ads.txt Validation Test80% of top 100 sites passed
  • The request of ads.txt file has an unexpected Content-Type header: text/html; charset=UTF-8. In order for this resource to be easily accessed by the DSPs and advertisers, its Content-Type header should be text/plain or text/plain; charset=utf-8.
Spell Check Test
Check your webpage for misspellings!

Finding and fixing misspellings on your webpage will help both user experience and search engine rankings.


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