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Report generated 3 months ago
https://number1.com.vn
Your general SEO Checkup Score
Archived
68/100
SEO Score
19 Failed
1 Warnings
48 Passed
Issues to fix
Last found on May 15 2022, 11:40 PM
HIGH
Your webpage doesn't use any HTML compression! You should compress your HTML to reduce your page size and page loading times - this will help your site retain visitors and increase page views. If you were using compression, you could be compressing your HTML size by 84% - from 190.07 Kb to 31.14 Kb .
HIGH
Your 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 your site entirely, and looks unprofessional. By creating a custom 404 error page, you can improve your website's user experience by letting users know that only a specific page is missing/broken (and not your entire site), providing them helpful links, the opportunity to report bugs, and potentially track the source of broken links in your site.
HIGH
This webpage is using render blocking resources! Eliminating render-blocking resources can help your page load significantly faster and improve the website experience for your visitors.
HIGH
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.
HIGH
Your website loading time is around 6.24 seconds and is over the average loading speed which is 5 seconds.
HIGH
The size of your webpage's HTML is 190.07 Kb, and is greater than the average size of 33 Kb. This can lead to slower loading times, lost visitors, and decreased revenue. Good steps to reduce HTML size include: using HTML compression, CSS layouts, external style sheets, and moving javascript to external files.
MEDIUM
Your webpage is using "img" tags with empty or missing "alt" attribute.
MEDIUM
This webpage is using target="_blank" links without rel="noopener" or rel="noreferrer" attribute, which can expose it to performance and security issues.
MEDIUM
Your server signature is on. Turning off your server signature is generally a good idea from a security standpoint. Read more on how to turn off server signature and improve your website's security.
MEDIUM
Your website is not using cache headers for your CSS resources. Setting cache headers can help speed up the serving of your webpages for users that regularly visit your site.
MEDIUM
Your website is not using cache headers for your JavaScript resources. Setting cache headers can help speed up the serving of your webpages for users that regularly visit your site.
MEDIUM
Your website is not using cache headers for your images. Setting cache headers can help speed up the serving of your webpages for users that regularly visit your site and see the same images. Learn more about how to add expires headers to your images.
MEDIUM
The Document Object Model (DOM) of this webpage has 4,706 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.
LOW
We've found 1 email addresses in your page code. We advise you to protect email links in a way that hides them from the spam harvesters.
LOW
This webpage has some errors caught by the Chrome DevTools Console!
LOW
Your 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.
LOW
Your webpage is using inline CSS styles!
LOW
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.
Common SEO issues
3Failed
0Warnings
23Passed
Meta Title Test100% of top 100 sites passed
  • Congratulations! Your webpage is using a title tag
Nước tăng lực Number 1 (Number One) - Chinh phục thử thách
Meta Description Test97% of top 100 sites passed
  • Congratulations! Your webpage is using a meta description tag
Nước Tăng Lực Number 1 - Nạp nhanh năng lượng, tập trung tỉnh táo, truyền cảm hứng và sức mạnh cho giới trẻ tự tin, sẵn sàng chinh phục mọi thử thách !
Google Search Results Preview Test
Nước tăng lực Number 1 (Number One) - Chinh phục thử tháchhttps://number1.com.vnNước Tăng Lực Number 1 - Nạp nhanh năng lượng, tập trung tỉnh táo, truyền cảm hứng và sức mạnh cho giới trẻ tự tin, sẵn sàng chinh phục mọi thử thách !
Social Media Meta Tags Test83% of top 100 sites passed
  • This webpage is using social media meta tags.
Open Graph Meta Tags
og:type
website
og:url
https://number1.com.vn/
og:locale
en_US
og:site_name
Nước tăng lực Number 1 (Number One) - Chinh phục thử thách
og:title
Trang chủ
og:description
No Description.
og:updated_time
2021-03-24T11:12:08+00:00
og:image
https://number1.com.vn/wp-content/uploads/2016/01/game-1-30kvxu0mxegpwtqxjy7qiy.jpg
og:image:width
882
og:image:height
500
og:image:alt
Nước tăng lực Number 1 (Energy Drinks)
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.
45nước39tăng21thao21uống21number
Keywords Usage Test81% of top 100 sites passed
  • Congratulations! You are using your keywords in your meta-tags, which help search engines to properly identify the topic of your page.
Keyword(s) included in Title tag
Keyword(s) included in Meta-Description tag
Keywords Cloud Test
activebiếtbuồnbìnhbóngchaichanhchinhchiếnchungchuyểnchuyệnchơichươngchạychấnchốngcocktailcuốicuộccáchcôngcùngcườngdinhdiễndoanhdươngdưỡngdụngeurogamegiảigiảngiớihiểmhiệuhànhhùnghướnghứnginositolironmankháckhátkhôngkiệnloạiluyệnlượnglịchmuốimạnhnghệngàyngườinhanhnhiềunhạcnhấtnhữngnumbernăngnướcphimphượtphẩmphụcquanquyếtrượusinhsiêusángsốngthaothuậtthànhtháchthươngthườngthầnthậtthứctinhtiềntrongtrungtrêntrìnhtrườngtănguốngvietnamviệcviệtđóngđượcđồngđộng
Competitor Domains Test
Understand your competitors' SEO profile

Side-by-side SEO comparisons of up to 5 competitors. See how your SEO can improve against the competition.

Heading Tags Test70% of top 100 sites passed
  • Congratulations! Your webpage contains headings tags.
H1 tags
Nước Tăng Lực Number 1 – Energy Drinks
Robots.txt Test94% of top 100 sites passed
  • Congratulations! Your site uses a "robots.txt" file.
Sitemap Test75% of top 100 sites passed
  • Congratulations! Your website has a sitemap file.
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SEO Friendly URL Test40% of top 100 sites passed
  • Congratulations! All links from your webpage are SEO friendly.
Image Alt Test71% of top 100 sites passed
  • Your webpage is using "img" tags with empty or missing "alt" attribute.
See full list
Responsive Image Test38% of top 100 sites passed
  • All images in this page are properly sized for different users' viewports.
Image Aspect Ratio Test72% of top 100 sites passed
  • All image display dimensions match the natural aspect ratio.
Inline CSS Test2% of top 100 sites passed
  • Your webpage is using inline CSS styles!
See results list
Deprecated HTML Tags Test99% of top 100 sites passed
  • Congratulations! Your page does not use HTML deprecated tags.
Google Analytics Test69% of top 100 sites passed
  • Congratulations! Your webpage is using Google Analytics.
Favicon Test100% of top 100 sites passed
  • favicon
    Congratulations! Your website appears to have a favicon.
JS Error Test74% of top 100 sites passed
  • Congratulations! There are no severe JavaScript errors on your webpage.
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
  • Congratulations! Your website is connected successfully with social media using:
Facebook Google Plus 
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Speed optimizations
10Failed
1Warnings
9Passed
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 4,706 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
  • Your webpage doesn't use any HTML compression! You should compress your HTML to reduce your page size and page loading times - this will help your site retain visitors and increase page views. If you were using compression, you could be compressing your HTML size by 84% - from 190.07 Kb to 31.14 Kb .
Site Loading Speed Test
  • Your website loading time is around 6.24 seconds and is over 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
  • Your page uses 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
41.7 %
1.83 Mb
css
32.1 %
1.41 Mb
javascript
17.5 %
788.40 Kb
font
4.8 %
215.43 Kb
html
3.9 %
176.27 Kb
other
0.0 %
16 B
TOTAL
100%
4.39 Mb
Requests by content type
Content type
Percent
Requests
image
61.2 %
60
javascript
17.3 %
17
font
11.2 %
11
css
7.1 %
7
html
2.0 %
2
other
1.0 %
1
TOTAL
100%
98
Content size by domain
Domain
Percent
Size
number1.com.vn
48.6 %
2.14 Mb
d1v5l30g8wuyvb.cloudfront.net
41.6 %
1.83 Mb
fonts.gstatic.com
4.5 %
201.28 Kb
googletagmanager.com
2.5 %
110.22 Kb
connect.facebook.net
1.9 %
85.55 Kb
google-analytics.com
0.4 %
19.94 Kb
googleadservices.com
0.3 %
15.00 Kb
fonts.googleapis.com
0.0 %
2.03 Kb
googleads.g.doubleclick.net
0.0 %
1.65 Kb
google.com
0.0 %
548 B
TOTAL
100%
4.39 Mb
Requests by domain
Domain
Percent
Requests
d1v5l30g8wuyvb.cloudfront.net
58.2 %
57
number1.com.vn
20.4 %
20
fonts.gstatic.com
10.2 %
10
fonts.googleapis.com
2.0 %
2
googletagmanager.com
2.0 %
2
google-analytics.com
2.0 %
2
connect.facebook.net
2.0 %
2
googleadservices.com
1.0 %
1
googleads.g.doubleclick.net
1.0 %
1
google.com
1.0 %
1
TOTAL
100%
98
Page Cache Test (Server Side Caching)100% of top 100 sites passed
  • Congratulations, you have a caching mechanism on your website. Caching helps speed page loading times as well as reduces server load.
Flash Test100% of top 100 sites passed
  • Congratulations! Your website 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
  • Your 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 Caching Test99% of top 100 sites passed
  • Your website is not using cache headers for your images. Setting cache headers can help speed up the serving of your webpages for users that regularly visit your site and see the same images. Learn more about how to add expires headers to your images.
See results list
JavaScript Caching Test98% of top 100 sites passed
  • Your website is not using cache headers for your JavaScript resources. Setting cache headers can help speed up the serving of your webpages for users that regularly visit your site.
See results list
CSS Caching Test98% of top 100 sites passed
  • Your website is not using cache headers for your CSS resources. Setting cache headers can help speed up the serving of your webpages for users that regularly visit your site.
See results list
JavaScript Minification Test93% of top 100 sites passed
  • Congratulations! Your website's JavaScript files are minified!
CSS Minification Test97% of top 100 sites passed
  • Congratulations! Your webpage's CSS resources are minified.
Render Blocking Resources Test29% of top 100 sites passed
  • This webpage is using render blocking resources! Eliminating render-blocking resources can help your page load significantly faster and improve the website experience for your visitors.
See results list
Nested Tables Test99% of top 100 sites passed
  • Congratulations, your page does not use nested tables. This speeds up page loading time and optimizes the user experience.
Frameset Test100% of top 100 sites passed
  • Congratulations! Your webpage does not use frames.
Doctype Test100% of top 100 sites passed
  • Congratulations! Your website has a doctype declaration:
<!DOCTYPE html>
URL Redirects Test96% of top 100 sites passed
  • Congratulations! Your URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).
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Server and security
3Failed
0Warnings
6Passed
URL Canonicalization Test92% of top 100 sites passed
SSL Checker and HTTPS Test100% of top 100 sites passed
  • Your 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 "number1.com.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
number1.com.vn
Subject Alternative Names (SANs)
number1.com.vn, *.number1.com.vn
Not valid before
Fri, February 25th 2022, 12:00:00 am (UTC)
Not valid after
Sun, March 26th 2023, 11:59:59 pm (UTC)
Signature algorithm
sha256WithRsaEncryption
Issuer
Amazon
Intermediate certificate
Common name
Amazon
Organization
Amazon
Location
US
Not valid before
Thu, October 22nd 2015, 12:00:00 am (UTC)
Not valid after
Sun, October 19th 2025, 12:00:00 am (UTC)
Signature algorithm
sha256WithRsaEncryption
Issuer
Amazon Root CA 1
Root certificate
Common name
Amazon Root CA 1
Organization
Amazon
Location
US
Not valid before
Tue, May 26th 2015, 12:00:00 am (UTC)
Not valid after
Sun, January 17th 2038, 12:00:00 am (UTC)
Signature algorithm
sha256WithRsaEncryption
Issuer
Amazon Root CA 1
Mixed Content Test (HTTP over HTTPS)100% of top 100 sites passed
  • Congratulations, 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 using the HTTP/2 protocol.
Safe Browsing Test100% of top 100 sites passed
  • This site 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 () OpenSSL/1.0.2k-fips
Directory Browsing Test100% of top 100 sites passed
  • Congratulations! Your server has disabled directory browsing.
Plaintext Emails Test93% of top 100 sites passed
  • We've found 1 email addresses in your page code. We advise you to protect email links in a way that hides them from the spam harvesters.
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Mobile usability
0Failed
0Warnings
3Passed
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=1.0"
Media Query Responsive Test99% of top 100 sites passed
  • Congratulations, your website uses media query technique, which is the base for responsive design functionalities.
Mobile Snapshot Test
Mobile view
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Advanced SEO
3Failed
0Warnings
7Passed
Structured Data Test59% of top 100 sites passed
  • Congratulations! Your website is using HTML Microdata specifications in order to markup structured data.
See results list
Custom 404 Error Page Test75% of top 100 sites passed
  • Your 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 your site entirely, and looks unprofessional. By creating a custom 404 error page, you can improve your website's user experience by letting users know that only a specific page is missing/broken (and not your entire site), providing them helpful links, the opportunity to report bugs, and potentially track the source of broken links in your site.
Noindex Tag Test99% of top 100 sites passed
  • Your webpage does not use the noindex meta tag. This means that your webpage will be read and indexed by search engines.
Canonical Tag Test95% of top 100 sites passed
  • Your webpage is using the canonical link tag. This tag specifies that the URL: https://number1.com.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://number1.com.vn/" rel="canonical"/>
Nofollow Tag Test
  • Your webpage does not use the nofollow meta tag. This means that search engines will crawl all links from your webpage.
Disallow Directive Test
  • Your robots.txt file disallow the search engines access to some parts of your website. You are advised to check carefully if the access to these resources or pages must be blocked.
See results list
Meta Refresh Test95% of top 100 sites passed
  • Congratulations, this webpage is not using a meta refresh tag.
SPF Records Test94% of top 100 sites passed
  • Your 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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