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SEO Score66/100
Average SEO score of top 100 sites: 75%
Your site scored 66/100, below the 75 average for top sites. We found 15 issues to fix, and clearing them is how you move up.
15 Failed
2 Warnings
37 Passed
Want to fix these issues and track your progress?
Common SEO issues
Score:89
Failed:2
Warnings:0
Passed:17
Meta Title Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations! Your webpage is using a title tag
Meta Description Test
97% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations! Your webpage is using a meta description tag
Desktop version
https://tongdaiviettelonline.com
Mobile version
https://tongdaiviettelonline.com
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.
Keywords Usage Test
81% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations! You are using your keywords in your meta-tags, which help search engines to properly identify the topic of your page.
auto
biết
bóng
bằng
chuyển
chính
chăm
chơi
chưa
chặn
ctrl
cuộc
cách
công
cùng
cước
danh
dcom
dung
dàng
dùng
dưới
dịch
dụng
edit
free
game
giao
giản
giới
google
hiện
hotline
hàng
hướng
khuyến
khách
khóa
không
kiểm
live
liên
liêu
lượng
meet
messenger
miễn
mobifone
mạng
ngay
nghe
nghệ
ngày
người
nhanh
nhiêu
nhiều
nhất
nhận
online
phòng
phút
phải
quân
sang
save
search
seri
space
sách
theo
thiệu
thoại
thuê
tháng
thêm
thường
thức
tiền
trang
trên
trận
tuần
tỉnh
tổng
video
vietnammobile
viettel
viettelpay
việc
website
write
youtube
zalo
đang
điểm
điện
đăng
được
đừng

Understand your competitors' SEO and backlink profile
Get related competitors and their domain authority score in relation to your domain.
Robots.txt Test
94% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website is using a robots.txt file.
Sitemap Test
75% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website has a sitemap file.
Image Alt Test
71% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Your webpage is using "img" tags with empty or missing "alt" attribute.
Responsive Image Test
38% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
All images in this page are properly sized for different users' viewports.
Image Aspect Ratio Test
72% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
All image display dimensions match the natural aspect ratio.
Google Analytics Test
69% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations! Your webpage is using Google Analytics.
Favicon Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.

Congratulations! Your website appears to have a favicon.

Get a full and detailed list of your backlinks
See every website linking to yours, along with detailed backlink data.
JS Error Test
74% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations! There are no severe JavaScript errors on your webpage.
Console Errors Test
33% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage has some errors caught by the Chrome DevTools Console!
Charset Declaration Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage has a character encoding declaration.
Content-Type: text/html; charset=UTF-8
Speed optimizations
Score:42
Failed:10
Warnings:1
Passed:6
HTML Page Size Test
34% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The size of your webpage's HTML is 221.96 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.
DOM Size Test
17% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
The Document Object Model (DOM) of this webpage has 2,859 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 Test
96% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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 88% - from 221.96 Kb to 27.66 Kb .
Site Loading Speed Test
68% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Your website loading time is around 5.82 seconds and is over the average loading speed which is 5 seconds.

Accurate historical loading speed monitor and reports
Get detailed and accurate loading speed reports for your websites and see how your pages are being loaded over time.
JS Execution Time Test
79% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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
css
43.7 %
1.13 Mb
javascript
17.0 %
451.11 Kb
image
15.4 %
408.76 Kb
html
12.2 %
323.96 Kb
font
11.5 %
305.46 Kb
other
0.0 %
36 B
TOTAL
100%
2.58 Mb
Requests by content type
Content type
Percent
Requests
image
50.7 %
37
font
23.3 %
17
javascript
12.3 %
9
css
6.8 %
5
html
4.1 %
3
other
2.7 %
2
TOTAL
100%
73
Content size by domain
Domain
Percent
Size
tongdaiviettelonline.com
83.4 %
2.16 Mb
fonts.gstatic.com
10.7 %
283.67 Kb
googletagmanager.com
4.3 %
113.59 Kb
maxcdn.bootstrapcdn.com
0.8 %
20.41 Kb
google-analytics.com
0.8 %
19.96 Kb
fonts.googleapis.com
0.1 %
1.91 Kb
TOTAL
100%
2.58 Mb
Requests by domain
Domain
Percent
Requests
tongdaiviettelonline.com
68.5 %
50
fonts.gstatic.com
21.9 %
16
google-analytics.com
4.1 %
3
googletagmanager.com
2.7 %
2
maxcdn.bootstrapcdn.com
1.4 %
1
fonts.googleapis.com
1.4 %
1
TOTAL
100%
73
CDN Usage Test
96% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Your webpage is not serving all resources (images, javascript and css) from CDNs.
Modern Image Format Test
32% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using images in a modern format.
Image Caching Test
99% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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.
JavaScript Caching Test
98% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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.
CSS Caching Test
98% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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.
JavaScript Minification Test
93% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations! Your website's JavaScript files are minified!
CSS Minification Test
97% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations! Your webpage's CSS resources are minified.
Render Blocking Resources Test
29% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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.
URL Redirects Test
96% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations! Your 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 4.06 seconds. To provide a good user experience, sites should strive to have Largest Contentful Paint of 2.5 seconds or less.
4.06 s
2.5 s
4 s
Largest Contentful Paint element within the viewport:
<img width="534" height="420" class="entry-thumb" src="https://tongdaiviettelonline.com/wp-content/upload..." srcset="https://tongdaiviettelonline.com/wp-content/upload..." sizes="(-webkit-min-device-pixel-ratio: 2) 1068px, (min-r..." alt="" title="Cách đăng ký 4G Viettel ưu đãi theo ngày, tuần, th...">
Cumulative Layout Shift Test
The CLS score of this webpage is 0.002. To provide a good user experience, sites should strive to have a CLS score of 0.1 or less.
0.002
0.1
0.25
DOM element which contributes the most to CLS score:
Text: TRANG CHỦ
Html: <li class="menu-item menu-item-type-post_type menu-item-objec...">
Score: 0.0011
Server and security
Score:56
Failed:2
Warnings:0
Passed:4
URL Canonicalization Test
92% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
https://tongdaiviettelonline.com and https://www.tongdaiviettelonline.com should resolve to the same URL, but currently do not.
SSL Checker and HTTPS Test
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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 "tongdaiviettelonline.com" 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
tongdaiviettelonline.com
Subject Alternative Names
tongdaiviettelonline.com
Not Valid Before
Thu, August 4, 2022 at 4:49:04 PM UTC
Not Valid After
Wed, November 2, 2022 at 4:49:03 PM UTC
Signature Algorithm
sha256WithRsaEncryption
Issuer
R3
Intermediate certificate
Common Name
R3
Organization
Let's Encrypt
Location
US
Not Valid Before
Fri, September 4, 2020 at 12:00:00 AM UTC
Not Valid After
Mon, September 15, 2025 at 4:00:00 PM UTC
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 4, 2015 at 11:04:38 AM UTC
Not Valid After
Mon, June 4, 2035 at 11:04:38 AM UTC
Signature Algorithm
sha256WithRsaEncryption
Issuer
ISRG Root X1
Mixed Content Test (HTTP over HTTPS)
100% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations, this webpage does not use mixed content - both the initial HTML and all other resources are loaded over HTTPS.
HTTP2 Test
92% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is not using the HTTP/2 protocol!
Plaintext Emails Test
93% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations! Your webpage does not include email addresses in plaintext.
Unsafe Cross-Origin Links Test
59% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is not using target="_blank" links without rel="noopener" or rel="noreferrer" attribute.
Mobile usability
Score:100
Failed:0
Warnings:0
Passed:3
Meta Viewport Test
94% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This webpage is using a viewport meta tag.
<meta name="viewport" content="width=device-width, initial-scale=1.0" />Media Query Responsive Test
99% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations, your website uses media query technique, which is the base for responsive design functionalities.

Advanced SEO
Score:89
Failed:1
Warnings:1
Passed:7
Structured Data Test
59% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations! Your website is using HTML Microdata specifications in order to markup structured data.
Custom 404 Error Page Test
75% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations, your website is using a custom 404 error page. 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.
Meta Refresh Test
95% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
Congratulations, this webpage is not using a meta refresh tag.
SPF Records Test
94% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
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 Test
80% of top 100 sites passed
This value indicates the percent of top 100 most visited websites in the US that pass this test (in the past 12 months). Failing a test that a high percentage of top websites are passing may indicate an industry best practice that you should be fixing.
This website doesn't use an ads.txt file! Ads.txt is a text file that contains a list of Authorized Digital Sellers. The purpose of ads.txt files is to give advertisers and advertising networks the ability to verify who is allowed to sell advertising on your website.
