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21IC电子网,电子工程师的优选网站(嵌入式,单片机,DSP,EDA,测试测量,元器件,医疗电子,智能电网)

21ic.com Quick Summary

Status

Online

Server IP address resolved: Yes

Http response code: 200

Response time: 1.38 sec.

Last Checked: 03/28/2024

21ic.com traffic estimate is about 23,895 unique visitors and 64,517 pageviews per day. The approximated value of 21ic.com is 1,130,040 USD. Every unique visitor makes about 2.7 pageviews on average.

Alexa Traffic Rank estimates that 21ic.com is ranked number 1,233 in the world, while most of its traffic comes from China, where it occupies as high as 1,312 place.

It’s good for 21ic.com that their hosting company CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN is located in China, as that provides the majority of their visitors to benefit from the faster page load time. See the list of other websites hosted by CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN.

21ic.com is registered under .COM top-level domain. Check other websites in .COM zone.

During the last check (August 28, 2018) 21ic.com has an invalid SSL certificate. please click the “Refresh” button for SSL Information at the Safety Information section.

In accordance with Google Safe Browsing, Google Safe Search, Symantec and Web of Trust 21ic.com is pretty a safe domain.

Relying on Google Mobile-Friendly test 21ic.com is well optimized for mobile and tablet devices, however website page loading time may be improved.

21ic.com General Information

21ic.com Audience Geography

Where are website visitors coming from?

Country Visitors
China China CN96.8%
Taiwan Taiwan TW0.7%
Other2.5%

21ic.com Traffic Distribution

Where do visitors go on 21ic.com?

SubdomainPageviews
bbs.21ic.com59.86%
21ic.com16.76%
dl.21ic.com4.58%
my.21ic.com3.69%
edu.21ic.com3.56%
project.21ic.com2.81%
tj.21ic.com2.11%
search.21ic.com1.47%
power.21ic.com1.37%
other3.8%

21ic.com Popularity

How popular is 21ic.com?

PeriodGlobal RankGlobal Rank Delta
past 3 months10532-4212
past month11793964
past week170996364
yesterday5949-38558

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21ic.com Safety Information

Rankchart Summary

Safe

Updated: 03/28/2024

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Safe

Updated: 03/21/2024

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Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Safe

Updated: 02/07/2019

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SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 01/09/2019

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Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee® WebAdvisor

Safe

Updated: 02/22/2021

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McAfee assesses 21ic.com for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze 21ic.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Child safety is very good

Updated: 01/09/2019

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The WOT calculates reputation of the 21ic.com. This reputation system receives ratings from users and information from third-party sources, assesses the 21ic.com for safety features and confirms, whether 21ic.com is suitable for children.

21ic.com SSL Information

Information about SSL/TLS certificates

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WARNING!Certificate download error. Previous scan results are shown below.
Domainm.21ic.com
Issuer OrganizationUnknown
IssuerEncryption Everywhere DV TLS CA - G1
AlgorithmRSA-SHA256
Valid form04/23/2018
Expiration04/23/2019
SignedCertificate is not self signed
Additional Domainsm.21ic.com

21ic.com Server Information

21ic.com Server Location

Where website hosting server is located?

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21ic.com ASN Information

Information about IP address owner

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ASN ID: 37963

ASN Title: CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN

Updated: 10/02/2023

21ic.com Domain Name Information

21ic.com DNS Information

Domain name service records

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HostA RecordTTL
21ic.com39.107.224.1263600

21ic.com Whois Information

Information about registered users or assignees of an Internet resource

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21ic.com HTML Validation

21ic.com W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:
Warnings:

21ic.com Desktop Performance

How Well 21ic.com Performs On Desktops?

Website desktop performance and usability tips

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Speed

42%

42%


Updated: 02/01/2018

21ic.com Mobile Performance

How Optimized Is 21ic.com for Mobile Devices?

Tips on speeding up mobile site performance

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Usability

83%

83%


Updated: 05/30/2017

21ic.com Nearest Competitors

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