bolt-doorphone.com

Tasks

Select one version of your site as main and make a redirect from other versions to that one.
Avoid using deprecated HTML tags.
Implement the viewport meta tag.

SEO

URL

Domain : www.bolt-doorphone.com/

Character length : 23

Title

Video Door Phone, Digital Door Viewer, Tft Lcd Module, Tft Lcd Display Module Suppliers or Manufacturers China - Bolt Electronics

Description

Are you looking for cheap, unique, user-friendly, good quality video door phones? We are sure you will find in our website. Our factory also produce TFT LCDs, touch screen, TFT LCD display modules and digital peephole viewers. We can do both OEM and ODM for you.

Keywords (meta keywords)

video door phone, digital door viewer, tft lcd module, tft lcd display module, touch screen

Error! Using “meta keywords” is meaningless in a while.

Open Graph Protocol

Error! The website does not use the OG (Open Graph) protocol.

Dublin Core

Dublin Core is not used

Underscores in the URLs

Good! No underscore (_) found in the URLs.

Search engine friendly URLs

Good! The website uses SEO friendly URLs.

Checking the robots.txt file

There is robots.txt file.
https://bolt-doorphone.com/robots.txt

User-agent	Disallowed for the search engines
*

Social

Social Engagement

No info found.

Content

Doctype

XHTML 1.0 Transitional

Encoding

Perfect! The character encoding is set: UTF-8.

Language

Error! No language localization is found.

Title

Video Door Phone, Digital Door Viewer, Tft Lcd Module, Tft Lcd Display Module Suppliers or Manufacturers China - Bolt Electronics

Character length : 129

Improve! The website address (title) should be between 10 and 70 characters in length.

Text / HTML ratio

Ratio : 23%

Acceptable! The text / code ratio is between 15 and 25 percent.

Headings

H1	H2	H3	H4	H5	H6
0	0	4	0	0	0

Heading structure in the source code

<H3> Product Catalog
<H3> Quick Navigation
<H3> Contact Information
<H3> News Letter

Word cloud

lcd19
tft15
door14
video13
module9
phone9
inch8
digital6
display6
viewer5
color5
shenzhen4
vision4
news4
wire4
multi4
night4
price3
photo3
quality3
camera3
bolt3
apartments3
good3
products3
screen3
industry2
learn2
electronic2
recording2
monitor2
e-mail2
intercom2
hao2
peephole2
function2
electronics2
firm2
cvbs2
xin’an2
feedback2
villa2
exhibition2
outdoor2
main2
signal2
all2
product2
cable2
input2
alarm2

Keyword matrix

word	title	descriptions	heading
lcd
tft
door
video
module
phone

Two Word cloud

tft lcd7
door phone6
video door5
inch color3
lcd display3
for multi3

Three Word cloud

tft lcd module3
with night vision2
inch tft lcd2
inch color lcd2
video door phone2
tft lcd display2

404 Page

The website has a 404 error page.

Flash content

Good! The website does not have any flash contents.

Frame

Good! The website does not use iFrame solutions.

Images

We found 22 images on this web page.

Alternate attributes for the following 7 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.

Technologies

Mobile optimization

This website is optimal for mobile devices!

Deprecated HTML elements

Good! No deprecated HTML tags are detected.

Redirection (www / not www)

Error! The web address is accessible with and without www!

Deprecated HTML elements

Good! No deprecated HTML tags are detected.

Printability

Suggestion! Unfortunately, no printer-friendly CSS found.

Meta Tag (viewport tag, mobile devices)

Error! The meta tag named viewport is missing.

Speed test

Server response time

The server response time is fast enough.

Loading time

2,199 ms

Table layout

Good! No nested tables found.

Number of HTTP resources

Number of source domains

Render blocking resources

The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files

http://m.bolt-doorphone.com/js/jquery.js
http://m.bolt-doorphone.com/js/wap.m13/owl.carousel.js

List of render blocking css files

http://m.bolt-doorphone.com/images/wap.m13/style.css?v=20170218
http://m.bolt-doorphone.com/images/wap.m13/index.css?v=20170218
http://m.bolt-doorphone.com/images/wap.m13/common.css?v=20170218

Speed test – Javascript

Javascript

Good! Just a few javascript files are detected on the website.

http://www.bolt-doorphone.com/js/jquery.js
http://www.bolt-doorphone.com/js/Site_Common.js
http://www.bolt-doorphone.com/Content/File_Img/10079/qq/ServiceQQ.js
http://www.bolt-doorphone.com/js/focus.js
http://www.bolt-doorphone.com/js/js109.js
http://www.bolt-doorphone.com/js/m109/jquery.SuperSlide.2.1.1.js

File size of all javascript files combined

240.27KB

Javascript minifying

You can save 2.3KB (21% compression) on the analysed URL by minifying the javascript files.

Speed test – CSS

CSS

Good! Just a few CSS files are used on this website.

http://www.bolt-doorphone.com/images/m109/blue/style.css
http://www.bolt-doorphone.com/Content/File_Img/10079/qq/qq.css

File size of all css files combined

22.86KB

CSS minifying

Great! The CSS elements are minified.

Speed test – Compression

Uncompressed size of the of the HTML

14.42KB

Gzip compression

Error! By using Gzip you can save 540B (58% compression) on your site.

By compressing http://m.bolt-doorphone.com/js/wap.m13/index.js you can save 540B (58% compression rate)
By compressing http://m.bolt-doorphone.com/images/flag.css you can save 391B (49% compression rate)

Speed test – Browser cache

Number of static resources (image, JS, CSS)

Browser cache

The browser cache is set correctly for all elements.

Speed test – Images

File size of all images combined

289.75KB

Image optimisation

You can save 151.9KB (76% compression) by optimising the images below:

By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/index-libg.png you can save 39.9KB (99%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/mobilephone.png you can save 38.8KB (99%) data.
By lossless compressing the http://m.bolt-doorphone.com/Content/File_Img/10079/logo67955.png you can save 18.8KB (82%) data.
By lossless compressing the http://m.bolt-doorphone.com/.. /201608101708514121334.png you can save 14.5KB (65%) data.
By lossless compressing the http://m.bolt-doorphone.com/.. /201608111105376756160.png you can save 12.6KB (71%) data.
By lossless compressing the http://m.bolt-doorphone.com/.. /201608111141161108576.png you can save 9.4KB (70%) data.
By lossless compressing the http://m.bolt-doorphone.com/.. /201608101713591965305.png you can save 9.4KB (69%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/list-bg.jpg you can save 4.8KB (25%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/recent-list-bg.jpg you can save 913B (44%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/160/index-arrow.png you can save 886B (60%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/line.jpg you can save 527B (44%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m11/flage.jpg you can save 358B (23%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/back-btn.png you can save 216B (30%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/tel.png you can save 189B (31%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/pos.png you can save 175B (26%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/email.png you can save 146B (20%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/search.png you can save 146B (15%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/nav-icon5.png you can save 139B (24%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/nav-icon3.png you can save 121B (23%) data.
By lossless compressing the http://m.bolt-doorphone.com/images/wap.m13/nav-icon2.png you can save 102B (20%) data.

Links

We found a total of 41 different links.
Internal links: 37
External links: 4

External links:

Link text (anchor)	Link strength
https://www.facebook.com/boltdoorphone
https://twitter.com/BDoorphone
https://plus.google.com/u/0/100487239942846738935
https://www.pinterest.com/sjy943

Internal links:

Link text (anchor)	Link strength
http://www.bolt-doorphone.com
Home
About Us
Products
Video Door Phone
Digital Door Viewer
TFT LCD Module
TFT LCD Display Module
Villa Video Door Phone
Multi Apartments Video Door Phone
News
Exhibition
Contact Us
Feedback
http://www.bolt-doorphone.com/video-door-phone
http://www.bolt-doorphone.com/digital-door-viewer
http://www.bolt-doorphone.com/tft-lcd-module
http://www.bolt-doorphone.com/tft-lcd-display-module
Click for More
4.3, 7 Inch TFT LCD Display Module CVBS Video Signal Input With Memory Video Photo Recording For Video Door Phone
3.5, 4, 4.3, 5, 7, 10.1 Inch TFT LCD Display Module CVBS Signal Input For Video Door Phone
4.3, 5, 7,10.1 TFT LCD Resistive Capacitive Touch Screen
3.5, 4, 4.3, 5, 7, 10.1 Inch TFT LCD Module, 24bit RGB Interface, Color LCD Display
Digital Peephole 4 Wire 2.8 Inch Color LCD Sreen Slim Design Rechargeable Lithium Battery With Photo Recording, Night Vision, Good Quality Camera T1
Digital Door Viewer 4 Wire 2.8 Inch Color LCD Monitor Using 3 AAA Batteries With Photo Taking, Night Vision, Good Quality Camera C1
4.3 Inch TFT LCD Screen Keypad Outdoor Station For Multi Aparments With Night Vision
7 Inch Color TFT LCD Monitor 4+2 Wire Or CAT5 Cable Video Intercom System For Multi Apartments With Alarm Function
4.3 Inch Color TFT LCD Screen 4+2 Wire Or CAT5 Cable Video Door Phone For Multi Apartments With Alarm Function
Villa Video Door Phone HD CMOS Camera Wired Plastic Outdoor Unit With Night Vision P3
Special Order - Digital Door Viewer Set - 18 USD
Our company will Exhibit MIPS 2017 Moscow
The Price Of TFT LCD Keep Increasing! And The...
Due To High Price Of 4.3" And 7" LCD, Our 5" ...
Learn More
Learn More
RSS
XML

Website security

13.93.155.248

External hidden links

Good! No hidden external links found

Looking for eval()

Good! No eval(bas64_decode()) scripts are found

Checking for XSS vulnerability

No XSS vulnerability found

Email encryption

Warning! The website contains at least one unencrypted email address.

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Icons

Favicon

Good! The website uses favicon.

Typos

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SEO report of bolt-doorphone.com

Video Door Phone, Digital Door Viewer, Tft Lcd Module, Tft Lcd ...