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securitySecurity

Report for mcu.banlinhkien.vn

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Traffic Rank

visitors
232,399th most visited website in the World Trend: down (+108,230)
1,337th most visited website in VN Vietnam
Traffic Rank is provided by Alexa

Visitors Localization

visitors
Low map legend High
CountryPercentDomain (ccTLD)Status
VN Vietnam100.0%mcu.vnNot available.
Registering country code top level domains (ccTLD) can prevent potential competitors from taking advantage of your primary domain reputation. It is also one of the ways to improve country specific SEO and performance. (www.searchenginejournal.com/seo-without-boarders-a-guide-to-international-seo-nick-paterman/60092/)

Images

accessibilitySEO-content
Perfect, all images have ALT attribute.
Number of images: 0
Missing alt tag: 0
The "alt" attribute provides a text equivalent for the image. If the browser cannot display an image the alt description will be given in its place. Furthermore, some visitors cannot see images as they might be blind in which the alt tag provides a valuable image description. Finally, search engines utilize the alt attribute for image search indexing. (www.w3.org/QA/Tips/altAttribute)

Title

SEO-content
We have found following title:

"Diễn Đàn Vi Điều Khiển"

Length: 22 characters
The <TITLE> element provides a short piece of text describing the document. The title is very important as it shows in the window title bars, bookmarks and search results. Title should be between 60 to 80 characters long. (www.w3.org/QA/Tips/good-titles)

Description Metatag

SEO-content
We have found following description:

"Diễn Đàn Vi Điều Khiển"

Length: 22 characters
The description attribute should provide a concise explanation of a Web page's content. Also, the description is often displayed on search engine results and can indirectly affect page ranking.

Keywords Metatag

SEO-content
No Keywords Found.
The keywords attribute was utilized by search engines to provide more accurate search results. Due to the over usage and spamming the keywords attribute has been phased out and is no longer relevant. Google doesn't use the "keywords" meta tag in web search ranking.

Text to HTML Ratio

SEO-content
The Text to HTML ratio is 21.26%
Original content is by far the single most important element to search engines. Low Text to HTML ratio indicates little content for search engines to index. We consider it to be good practice to have a Text to HTML ratio of at least 10% and ideal above 20%

Keyword Density & Consistency

SEO-content
Consistent Keywords % Density # Count T Title D Desc. H <H> A ALT B <b>
tài3.31%51--2--
bài3.18%49--3-1
viết3.05%47--2-1
mới2.99%46--2--
thảo2.79%43--1--
luận2.79%43--1--
rss2.73%42-----
tháng2.66%41-----
nhất2.66%41-----
đàn2.14%33113-2
bài viết3.05%47--2--
thảo luận2.79%43--1--
tài thảo2.73%42-----
mới nhất2.66%41-----
diễn đàn2.14%33113--
tài thảo luận2.73%42-----
tháng hai 20151.49%23-----
diễn đàn con1.43%22-----
hai 2015 lúc1.23%19-----
tháng một 20150.52%8-----
Keywords density and consistency are notable factors for optimal page SEO. Preferred keywords should have higher keywords density indicating their importance. Optimally, preferred keywords should also be consistently utilized in multiple essential areas of the page such as title, description meta tag, h1 through h6 headings, alt image attributes, backlinks and internal links anchor text. Keyword density of above 6% can indicate that the word or a phrase appears too many time in the content.

Frames

accessibilitySEO-content
No frames detected.
It is not recommended to use frames or iframes because they can cause problems for search engines. It is best to avoid frames and inline frames whenever possible (searchenginewatch.com/article/2064573/Search-Engines-and-Frames). If frames must be utilized consider <noframes> tag. (www.w3schools.com/tags/tag_noframes.asp).

Flash

accessibilitytechnologySEO-content
No flash detected.
Flash and other reach-media technologies should primarily be utilized for decorative purposes. This makes your site more search engine friendly and improves accessibility (support.google.com/webmasters/bin/answer.py?hl=en&answer=72746#1).

Doctype

technologyvalidity
HTML 5
The <!DOCTYPE> declaration tells the web browser about what version of HTML the page is written in. It is good practice to always add the <!DOCTYPE> declaration to the HTML documents, so that the browser knows what type of document to expect. (www.w3schools.com/tags/tag_DOCTYPE.asp)

Headings

SEO-content
  • 0 <H1>
  • 1 <H2>
    • Đăng nhập
  • 67 <H3>
    • Bài viết mới
    • Thông Tin Diễn Đàn - Đăng Ký Để Xem Bài Viết
    • Thông Báo - Nội Quy
    • Hướng Dẫn Sử Dụng Diễn Đàn
    • Góp Ý Xây Dựng Diễn Đàn
    • Sản Phẩm Minh Hà
    • Sản Phẩm Mới
    • KIT Phát Triển
    • KIT Phát Triển
    • Mạch Nạp
    • Cảm Biến
    • Cảm Biến
    • Module
    • Module
    • Mô Hình
    • Mô Hình
    • LED Minh Hà
    • LED Minh Hà
    • Đào Tạo Minh Hà
    • Thông Tin - Đăng Ký
    • Tài Liệu Học Tập
    • Thảo Luận
    • CLB Điện Tử Minh Hà
    • CLB Điện Tử Minh Hà
    • Điện Tử Căn Bản
    • Điện Tử Nhập Môn
    • Điện Tử Tương Tự
    • Điện Tử Số
    • Mạch Điện Lý Thú
    • MCU Vi Điều Khiển
    • 8051
    • 8051
    • AVR
    • AVR
    • PIC dsPIC
    • PIC dsPIC
    • STM32
    • MSP430
    • NXP ( LPC)
    • Nuvoton
    • CPLD-FPGA
    • Cơ bản VHDL-Verilog
    • Xilinx
    • Altera
    • Tin Học Cho Điện Tử
    • Lập Trình C Cơ Bản
    • Kiến Thức Cơ Bản C#
    • Giao Tiếp MCU-PC
    • Mạch In & Kỹ Thuật hàn
    • Thiết Kế Mạch In
    • Thiết Kế Mạch In
    • Tự Làm Mạch In
    • Kỹ Thuật Hàn
    • Download
    • Book
    • SoftWare
    • Driver
    • Driver
    • Datasheet
    • Chuyên Mục MCU
    • Bạn Hỏi - Chúng Tôi Trả Lời
    • Hỏi Đáp Ngoài Luồng
    • Hỏi - Đáp Ngoài Luồng
    • Quảng Cáo-Rao Vặt
    • Recycle Bin
    • Menu
    • Tài khoản của bạn
  • 46 <H4>
    • KIT 8051 - Tiếp Cận VĐK
    • KIT AT89S52 V1
    • KIT 89S52 V2
    • KIT 89S52 V3
    • KIT AT89S52 V3 NEW
    • KIT AVR - ATMEGA
    • KIT ATMEGA8 V2 ( AVR V2 Cũ)
    • KIT AVR V2 NEW
    • KIT ATMEGA16 V3 ( KIT AVR V3 Cũ)
    • KIT AVR V4
    • KIT PIC - DSPIC - PIC16-PIC18
    • KIT PIC V3
    • KIT PIC V1
    • KIT PIC V4
    • KIT STM - STM8 - STM32
    • KIT STM32F103C8T6 ( Bản Start)
    • Cảm Biến Nhiệt Độ Và Độ Ẩm
    • Cảm Biến Khí
    • Cảm Biến Hồng Ngoại
    • Cảm Biến Siêu Âm
    • Cảm Biến Áp Suất
    • Cảm Biến Góc
    • Cảm Biến Chuyển Động ( PIR )
    • Cảm Biến Khác
    • Các Modul Cơ Bản
    • Module Relay
    • Ethernet
    • Màn Hình Text LCD - Graphic LCD - TFT
    • Module RF - RFID
    • Thời Gian Thực ( Real Time Clock )
    • Bluetooth
    • Module Driver
    • Động Cơ DC Các Loại
    • Phần Mềm
    • Sản Phẩm
    • Proteus
    • Keil C
    • Các Bài Tập 8051
    • Tổng quan về họ 8051
    • Giới thiệu về họ vi điều khiển 8051
    • Phương pháp tiếp cận và nghiên cứu
    • AVR Căn Bản
    • Tổng quan về PIC
    • Giới thiệu chức năng cơ bản của PIC16F877A
    • Cadence ORCAD
    • Module Chuyển Đổi (PL2303 - HL340)
  • 0 <H5>
  • 0 <H6>
The <h1> to <h6> tags are used to define HTML headings. The <h1> tag should hold the title describing the content of a specific page therefore only one h1 tag is needed per page. There can be any number of h2 - h6 tags but they should be added in order of importance (www.w3schools.com/tags/tag_hn.asp).

Character Encoding

technologyvalidity
UTF-8 (Unicode)
Covers: Worldwide
To display an HTML page correctly, the browser must know what character-set to use.

Language

usability
Declared Language: vi-VN (Vietnamese)
Language Attribute: vi-VN (Vietnamese)
The HTML "lang" attributes and language metatag define the base language to be used for displaying text and characters on a Website.

W3C Markup Validation

validity
Status: FAILED [23 errors, 3 warning(s)]
It is good practice to use valid HTML/XHTML markup as it ensures that the search engines can read the website correctly as well as it improves cross browser compatibility (W3C Markup Validation Service).

Deprecated HTML elements

technologyvalidity
Good, no deprecated elements found.
A deprecated element is one that has been outdated by newer constructs. Deprecated elements may become obsolete in future versions of HTML so it is recommended not to use them.

Nested HTML Tables

accessibilitytechnology
Great, no nested tables detected.
In general it is not recommended to use nested tables or to utilize tables for page layout. Nested tables are known to cause performance issues due to increased HTML size and rendering time. It is better to use CSS layout instead.

Web Analytics

technology
No web anlytics tools found.
Web Analytics Tools collect and measure information about visitor activity on a website. Well interpreted web traffic data is invaluable in determining a successfully web strategy and assessing the effectiveness of a website. At a minimum, we recommend to utilize at least one web analytics tool.

robots.txt

SEO
Not found
A robots.txt file restricts access to search engine robots that crawl the web. (www.robotstxt.org/robotstxt.html)

XML Sitemap

SEO
Not found!
Sitemaps inform search engines about pages available for crawling. In its simplest form, a Sitemap is an XML file that lists URLs for a site along with additional metadata about each URL. XML sitemap should help search engines to crawl the site more intelligently. (www.sitemaps.org/protocol.html)

Favicon

usability
Missing
The Favicon is a small icon associated with a website. The Favicon is important because it is displayed next to the website's URL in the address bar of the browser as well as in bookmarks and shortcuts.

Custom 404 Error Page

usability
Yes, custom 404 error page detected.
A 404 is a standard http response code for a resource that cannot be located on the server. Web servers usually return a "404 Not Found" error page for non-existing pages. Unfortunately, these default error pages are very generic and a not very user friendly, therefore, using a custom 404 error page is highly recommended.

Process of returning http status code "200 OK" for a non-existent page or redirecting users to another url is called soft 404. Soft 404 errors are problematic for search engines and are not advisable. (https://support.google.com/webmasters/answer/181708)

Printability

usability
Could not locate print-friendly CSS.
Print-friendly pages are designed to fit on an 8.5"x11" or A4 sheet and usually include only the content of the page, along with source information.

W3C CSS Validation

validity
Status: FAILED [235 error(s)]
It is recommended to use valid CSS to ensure that the website displays correctly. (W3C CSS Validation Service).

Page Rank

SEO-Authority
PR: 0 out of 10 (Very Poor)
PageRank is Google's measure of the importance of a page. It is based on complex algorithmes evaluating page content, authority, keyword density, back links, traffic, demand and more.

Indexed Pages

SEO-Authority
Estimated number of pages indexed by Google™: 0
Estimated number of pages indexed by Bing™: 0
The higher number of indexed pages the more content search engines can index, which increases overall value of the website.

Domain Age

SEO-Authority
Data could not be obtained.
Age of the domain is one of the many signals that search engines utilize for ranking. Brand new domains generally have more difficult time to rank high for the first few months.

Domain Expiration

SEO-Authority
Data could not be obtained.
Domain expiration far in to the future is considered a good practice as it promotes confidence in your website, decreases chances of losing domain and in certain cases might help with search engine ranking. (https://www.hover.com/blog/three-reasons-to-renew-your-domain-names-for-five-years/)

IP Canonicalization

SEO
No, your site's IP 112.78.2.101 does not redirect to mcu.banlinhkien.vn.
Some web spiders index websites using IP as well as domain name which can cause duplicate content if there is no IP Canonicalization.

URL Canonicalization

SEO
No, the www.mcu.banlinhkien.vn and mcu.banlinhkien.vn do not resolve to the same URL.
Domain name with WWW and without can be considered as different pages causing duplicate content for search engines. (www.mattcutts.com/blog/seo-advice-url-canonicalization)

Page Speed

performanceSEO
Google Page Speed score: 47% (Low)
Rq. Requests Hst. Hosts LT Load time Html Img Images JS JavaScript CSS F Flash O Other PS Page Size
2172918.54s872.61 KB2.55 MB1.73 MB448.48 KB0 B169.63 KB5.73 MB

RecommendationImpactDetails
Avoid landing page redirects
None
Your page has no redirects.
    Enable compression
    High
    Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
      Enable compression for the following resources to reduce their transfer size by 316.7KiB (73% reduction).
      Leverage browser caching
      High
      Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
        Leverage browser caching for the following cacheable resources:
        Reduce server response time
        Low
        In our test, your server responded in 0.32 seconds. There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
          Minify CSS
          Low
          Compacting CSS code can save many bytes of data and speed up download and parse times.
            Minify CSS for the following resources to reduce their size by 22.1KiB (25% reduction).
            Minify HTML
            Low
            Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
              Minify HTML for the following resources to reduce their size by 14.6KiB (13% reduction).
              Minify JavaScript
              Low
              Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
                Minify JavaScript for the following resources to reduce their size by 14.3KiB (12% reduction).
                Eliminate render-blocking JavaScript and CSS in above-the-fold content
                Medium
                Optimize images
                High
                Properly formatting and compressing images can save many bytes of data.
                  Optimize the following images to reduce their size by 359.1KiB (24% reduction).
                  Prioritize visible content
                  None
                  You have the above-the-fold content properly prioritized.

                    PageSpeed analyzes webpages and evaluates its performance while providing suggestions on reducing page load times. Google is now incorporating website speed in search ranking (www.mattcutts.com/blog/site-speed)

                    Server Information

                    security
                    Server IP:
                    112.78.2.101
                    Server Location:
                    VN TRA VINH, Truong Dinh
                    Your server's IP address and location have minor impact on the country specific SEO. It is recommend to host the website in the country where the number of vistors is desired to be the highest. Search engines take the geolocation of a server into account. (www.youtube.com/watch?v=hXt23AXlJJU)

                    HTTPS (SSL)

                    security
                    Issued To:
                    Common Name (CN):
                    dukhachcanbiet.com.vn
                    Issuer:
                    Common Name (CN):
                    dukhachcanbiet.com.vn
                    Oranization (O):
                    THUONGHIEUVANG.INFO
                    Period of Validity
                    Begins On:
                    11/26/2013
                    Expires On:
                    11/26/2014

                    Warning: The SSL certificate has expired.
                    Google™ is now treating HTTPS as a ranking signal. HTTPS is a secure web protocol that allows for encrypted communication between website and the client. HTTPS protocol requires your website to have an SSL certificate, which can be purchased from a Certificate Authority (CA) or SSL vendor. (security.googleblog.com/2014/08/https-as-ranking-signal_6.html).

                    Safe Browsing

                    security
                    Yes - This site is not currently listed as suspicious.
                    Safe Browsing is a service provided by Google that enables applications to check URLs against Google's constantly updated lists of suspected phishing and malware pages. If your site is marked as unsafe see our guide on how to fix websites blocked by google safe browsing

                    Email Address Obfuscation

                    security
                    Great, this webpage does not contain email addresses displayed in plain text.
                    It is recommended to obfuscate email addresses posted in public. This prevents email addresses from being automatically harvested by spam bots which helps to decrease number of unsolicited emails. See our email obfuscation techniques guide for more details.

                    Spam Blacklist

                    security
                    Good, your IP is not blacklisted.
                    Spammer directories provide lists of IPs from which spam distribution is reported. Emails sent from the blocked IPs are subject to closer scrutiny and are much less likely to be delivered. For email campaigns it is recommended to utilize professional email services to ensure that your website IP is not blocked. (www.stopforumspam.com)

                    Directory Browsing

                    security
                    Great, your server has directory browsing disabled.
                    Protect Webserver directories from unwanted browsing. To enhance security, directory browsing should be disabled unless you have a specific reason to enable it. If you enable directory browsing, make sure that you only enable it on the particular directory or directories that you want to share. (https://technet.microsoft.com/en-us/library/cc731109)

                    Whois Privacy

                    security
                    No contact information available.
                    Whois Privacy is a service that prevents domain owner contact information from being displayed in the publicly available Whois records. This can help to cut down on unwanted spam but utilizing Whois privacy should be evaluated against business model and branding strategy.

                    Server Signature

                    security
                    On, nginx admin PHP/5.3.29
                    Attackers can utilize server signature versioning information to their advantage therefore it is recommended to disable it when possible.