mobile
Mobile menu

Whois & Analysis for 81tech.com

Nov 29, 2019 6:09 pm UTC

DOMAIN OWNER WHOIS

The owner has chosen to keep his whois contact information private.
Desktop screen Desktop screenshot for 81tech.com
62

7 criteria passed
4 criteria to solve

PERFORMANCE OPPORTUNITIES

Make your meta description eloquent and appealing, neither too short nor too long.
Arrow
Make all versions of your website point to the same URL.
Arrow

OVERVIEW

• Domain Owner
Private
• Category
Technology & Computing
• Online since
March 28, 2005 Explore Wayback Machine
• Age
19 years, 7 months, 25 days

SUPERCHARGE YOUR SEO

Guest Posting Rocket

Boost 81tech.com's SEO with Kontactr's Guest Posting.

Secure high-authority, do-follow backlinks from our trusted site—DA45 domain authority and PA55 homepage and blog pages.

Perfect for webmasters seeking higher search rankings and increased organic traffic.

Simple, quick, and effective.


opens a new window

TECHNICAL SEO & SECURITY

SSL Certificate
This website is not SSL secured (HTTPS), the certificate issued by DigiCert Inc has expired on July 15, 2020.
Title Tag
军工企业一站式采购平台-国防科技网(www.81tech.com)
Length: 65 (recommended: 10 to 70)
Meta Description
国防科技网于2005年创建,超过60万专业会员,涵盖航天、航空、无人机、船舶、核工业、军事电子(雷达、通信、电子战、虚拟仿真、电源、导航、电磁兼容、信息化、水声)、兵器、材料、可靠性、军用物资等,设有新闻、产品、企业、技术、科普、访谈、展会等频道和论坛。
Length: 369 (recommended: 50 to 160)
Google preview
Desktop Version

军工企业一站式采购平台-国防科技网(www.81tech.com)

https://81tech.com

国防科技网于2005年创建,超过60万专业会员,涵盖航天、航空、无人机、船舶、核工业、军事电子(雷达、通信、电子战、虚拟仿真、电源、导航、电磁兼容、信息化、水声)、兵器、材料、可靠性、军用物资等,设有新闻、产品、企业、技术、科普、访谈、展会等频道和论坛。

Mobile Version

https://81tech.com

军工企业一站式采购平台-国防科技网(www.81tech.com)

国防科技网于2005年创建,超过60万专业会员,涵盖航天、航空、无人机、船舶、核工业、军事电子(雷达、通信、电子战、虚拟仿真、电源、导航、电磁兼容、信息化、水声)、兵器、材料、可靠性、军用物资等,设有新闻、产品、企业、技术、科普、访谈、展会等频道和论坛。

Encoding
Great, language/character encoding is specified: utf-8
URL Resolve

No 301 redirects are in place to redirect traffic to your preferred domain. Pages that load successfully both with and without www. are treated as duplicate content! Not all versions of your page point to the same URL.

URL Parameters
Great, the domain URLs look clean.

SEMANTIC ANALYSIS

The owner has associated the following topics to the website.

WEBSITE SPEED

81tech.com website speed is normal. Page speed is important for visitors and search engines.

Get insights to improve your page loading time.

Page Loading Time

2.4s

This domain loads at the median speed of 2.4 seconds.

Speed Percentile

31%

81tech.com is faster than approximately 31 percent of the web. Your website page speed needs to be as fast as you can make it, without compromising the customer experience.

A good goal to achieve is a loading time of 2 seconds on desktop and mobile devices.

PAGESPEED INSIGHTS

Page on which speed is tested live:

Chrome User Experience Report Results

Lighthouse Results

LAYOUT

Doctype HTML 4.01 Arrow Responsive website, mobile-friendly. Arrow

Mobile Rendering

This website doesn't seem to be optimized for Mobile Visitors.

Phone
How 81tech.com looks like on a mobile device such as an iPhone.

Tablet
How 81tech.com looks like on a tablet such as an iPad.

Main colors used

These are the main HTML color codes used by this website. Arrow
  • 25% #ffffff
  • 25% #f0f0f0
  • 8% #003090
  • 8% #103090
  • 3% #fff0f0
  • 3% #f0f0ff
  • 2% #f0ffff
  • 2% #204090
  • 2% #d02020
  • 2% #90a0c0
  • 1% #fffff0
  • 1% #f0c0c0

Text/code ratio

81tech.com's text/code ratio is 17.27%. It's a bit low. Consider raising it by adding more text content of value for your visitors, or keeping your code clean.
Text / Code Ratio 17.27%

A good text to HTML ratio is anywhere from 25 to 70%.

This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.

Main HTML tags

Headings Arrow up

Great, we found headings on this page.

  • <H1> 9
  • <H2> 0
  • <H3> 6
  • <H4> 0
  • <H5> 0
  • <H6> 0
<H1>
Top level heading
免费获取新版《射频、微波及毫米波产品选型指南》 推荐品牌
更多>> f1航天
更多>> f2航空
更多>> f3船舶
更多>> f4核工业
<H3>
3rd level heading
商机中心
最新供应
Vıp信息
最新企业
Vıp企业
Alt attributes Arrow up

We found 109 images on this website.
36 ALT attributes are missing on your image tags. The issue affects 16 actual different images that could be loaded more than once in your page.

Alternative text allows you to add a description to an image.

Google rely on alternative text attributes to determine relevance to a search query. Alternative text also makes an image more likely to appear in a Google image search.

It looks like you're missing alternative text for 36 images on 81tech.com. Check your website to make sure it's specified for each image on the page.

SOCIAL MEDIA PRESENCE

This is an overview of your homepage shares on social networks.

It seems you have a very poor social media presence.

Follow these tips to build a better relationship with your audience : set smart goals, identify your audience, be human, seek relationships, create an editorial calendar, automate, focus on helping, optimize for engagement, get visual, stay active and create great content.

  • Facebook iconFacebook
  • Total Engagement 0
  • Likes 0
  • Shares 0
  • Comments 0

DOMAIN REGISTRAR

Domain Registrar BIZCN.COM, INC.
Registration Date 03/28/2005 19 years, 7 months, 25 days ago
Last Modified 06/16/2019 5 years, 5 months, 5 days ago
Expiration Date 03/28/2022 Expired
Nameservers Arrow up
Host IP Address Country
dns.bizcn.com 183.131.156.81 Flag for ChinaChina
dns.cnmsn.net 183.131.156.100 Flag for ChinaChina

SERVER DETAILS

Server map
  • Service Provider (ISP)
  • Hangzhou Alibaba Advertising Co
  • IP Address
  • 118.31.40.123
  • Country
  • Flag for ChinaChina
  • Region
  • Zhejiang , Hangzhou
  • Latitude and Longitude
  • 30.294 : 120.1619
SHARE THIS PAGE