dfrobot.com.cn ▷ DFRobot官网-开源硬件,智能机器人和科创教育产品及服务提供商

Quick Summary

Online Status

Online

Server IP address resolved: Yes
Http response code: 200
Response time: 1.77 sec.
Last Checked: 11/15/2024

Dfrobot.com.cn traffic volume is 4,530 unique daily visitors and their 17,215 pageviews. The web value rate of dfrobot.com.cn is 299,942 USD. Each visitor makes around 4.07 page views on average.

By Alexa's traffic estimates dfrobot.com.cn placed at 3,320 position over the world, while the largest amount of its visitors comes from China, where it takes 5,294 place.

Perfect for dfrobot.com.cn that their data center (provided by company company CNNIC-TENCENT-NET-AP Shenzhen Tencent Computer Systems Company Limited, CN) is located in China, as that empowers most of the visitors to reduce the page load time. See the list of other web pages hosted by CNNIC-TENCENT-NET-AP Shenzhen Tencent Computer Systems Company Limited, CN.

Dfrobot.com.cn registered under .CN top-level domain. Check other websites in .CN zone.

The last verification results, performed on (August 14, 2020) dfrobot.com.cn show that dfrobot.com.cn has an expired wildcard SSL certificate issued by GoDaddy.com, Inc. (expired on November 05, 2020). Click “Refresh” button for SSL Information at the Safety Information section. Check the list of websites using SSL certificates issued by GoDaddy.com, Inc..

In accordance with Google Safe Browsing, Google Safe Search and Symantec dfrobot.com.cn is pretty a safe domain.

Relying Google MobileFriendly test dfrobot.com.cn is well optimized for mobile and tablet devices, however web page loading speed may be improved.

Dfrobot.com.cn General Information

Global Rank

41,312

Average Load Time

1.82sec

Links In Count

210

Website Value

$280,320

Audience Geography. Where are dfrobot.com.cn visitors located?

Country	Visitors
China CN	96.1%
Taiwan TW	1.4%
Saudi Arabia SA	0.5%
Other	1.9%

Country	Pageviews
China CN	97.6%
Taiwan TW	1%
Saudi Arabia SA	0.4%
Other	1%

Country	Rank
China CN	5294
Taiwan TW	25458
Saudi Arabia SA	33520

Where do visitors go on dfrobot.com.cn?

Subdomain	Pageviews
mc.dfrobot.com.cn	65.77%
wiki.dfrobot.com.cn	18.01%
dfrobot.com.cn	13.98%
other	2.24%

Subdomain	Pageviews per User
wiki.dfrobot.com.cn	4
mc.dfrobot.com.cn	3.3
dfrobot.com.cn	1.4

Subdomain	Reach
mc.dfrobot.com.cn	72.98%
dfrobot.com.cn	35.7%
wiki.dfrobot.com.cn	17.22%

How popular is dfrobot.com.cn?

Period	Global Rank	Global Rank Delta
past 3 months	41312	4370
past month	45608	6646
past week	42371	-10576
yesterday	49099	8593

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	37700	2190	17	-6.478%	3.8	5%
30	42710	8310	15	-21.06%	3.7	-9.337%
7	45706	-526	14	-2.01%	3	-28.74%
1	61828	22035	1	-39.06%	3	-32.98%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	45532	5364	17	-11.38%
30	49975	6250	15	-12.78%
7	44249	-15699	17	40%
1	49243	4361	20	-9.176%

Dfrobot.com.cn Safety Information

Overview

Last Updated: 11/15/2024

Overall result - dfrobot.com.cn is safe.

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

Last Updated: 03/24/2024

dfrobot.com.cn is safe.

Norton ConnectSafe evaluates dfrobot.com.cn for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 11/01/2016

dfrobot.com.cn is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

dfrobot.com.cn is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

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

Site Advisor

Last Updated: 02/24/2021

dfrobot.com.cn is safe.

McAfee assesses dfrobot.com.cn 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 dfrobot.com.cn for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 11/15/2024

dfrobot.com.cn child safety is unknown.

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

SSL Information

SSL Checker Tool

Domain	*.dfrobot.com.cn
Issuer Organization	GoDaddy.com, Inc.
Issuer	Go Daddy Secure Certificate Authority - G2
Algorithm	RSA-SHA256
Valid form	11/05/2018
Expiration	11/05/2020
Signed	Certificate is not self signed
Additional Domains	*.dfrobot.com.cn dfrobot.com.cn

Dfrobot.com.cn Server Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 45090
ASN Title: CNNIC-TENCENT-NET-AP Shenzhen Tencent Computer Systems Company Limited, CN

Last Update: 07/22/2024

ASN Whois

% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS45056 - AS45115'

as-block: AS45056 - AS45115
descr: CNNIC ASN block
country: CN
remarks: These AS numbers are further assigned by CNNIC
remarks: to CNNIC members and end-users in China
admin-c: IPAS1-AP
tech-c: IPAS1-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CNNIC-AP
last-modified: 2009-09-29T06:15:17Z
source: APNIC

role: CNNIC IPAS CONFEDERATION
address: No.4, Zhongguancun No.4 South Street,
address: Haidian District, Beijing
country: CN
phone: +86-010-58813000
fax-no: +86-010-58813075
e-mail: ipas@cnnic.cn
admin-c: IP50-AP
tech-c: IP50-AP
nic-hdl: IPAS1-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2013-09-12T07:40:01Z
source: APNIC

% Information related to 'AS45056 - AS46079'

as-block: AS45056 - AS46079
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2009-09-29T05:48:11Z
source: APNIC

role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC

% Information related to 'AS45090'

% Abuse contact for 'AS45090' is 'ipas@cnnic.cn'

aut-num: AS45090
as-name: CNNIC-TENCENT-NET-AP
descr: Shenzhen Tencent Computer Systems Company Limited
descr: Tencent Building, Kejizhongyi Avenue, Hi-techPark,Nanshan
descr: District,Shenzhen
country: CN
import: from AS18118
action pref=100;
accept ANY
import: from AS17962
action pref=100;
accept ANY
export: to AS18118
announce AS45090
export: to AS17962
announce AS45090
admin-c: DR196-AP
tech-c: JW2054-AP
mnt-routes: MAINT-CNNIC-AP
mnt-by: MAINT-CNNIC-AP
mnt-irt: IRT-CNNIC-CN
last-modified: 2016-10-17T00:30:37Z
source: APNIC

irt: IRT-CNNIC-CN
address: Beijing, China
e-mail: ipas@cnnic.cn
abuse-mailbox: ipas@cnnic.cn
admin-c: IP50-AP
tech-c: IP50-AP
auth: # Filtered
remarks: Please note that CNNIC is not an ISP and is not
remarks: empowered to investigate complaints of network abuse.
remarks: Please contact the tech-c or admin-c of the network.
mnt-by: MAINT-CNNIC-AP
last-modified: 2017-11-01T08:57:39Z
source: APNIC

person: Dreams Ruan
address: Tencent Building, Kejizhongyi Avenue, Hi-techPark,Nanshan District,Shenzhen
country: CN
phone: +86-755-86013388-84520
fax-no: +86-755-86013030
e-mail: dreamsruan@tencent.com
nic-hdl: DR196-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2010-05-10T10:02:01Z
source: APNIC

person: Jsquare Wu
address: Tencent Building, Kejizhongyi Avenue, Hi-techPark,Nanshan District,Shenzhen
country: CN
phone: +86-755-86013388-88441
fax-no: +86-755-86013030
e-mail: jsquare@tencent.com
nic-hdl: JW2054-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2010-05-10T10:02:01Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)

Dfrobot.com.cn Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: dfrobot.com.cn
ROID: 20100318s10011s88110063-cn
Domain Status: ok
Registrant: 上海智位机器人股份有限公司
Registrant Contact Email: ricky.ye@dfrobot.com
Sponsoring Registrar: 阿里云计算有限公司（万网）
Name Server: vip3.alidns.com
Name Server: vip4.alidns.com
Registration Time: 2010-03-18 19:18:50
Expiration Time: 2025-03-18 19:18:50
DNSSEC: unsigned

DNS Records

DNS Lookup Tool

Host	A Record	TTL
dfrobot.com.cn	212.64.26.74	3600

Host	MX Record	Priority	TTL

Host	NS Record	TTL
dfrobot.com.cn	dns16.hichina.com	86400
dfrobot.com.cn	dns15.hichina.com	86400

Host	TXT Record	TTL
dfrobot.com.cn	thltg9pkc4s7fht41ldakroh6p	600

dns15.hichina.com
TTL: 3600
Email address: hostmaster.hichina.com
Serial: 2018060401
Refresh: 3600
Retry: 1200
Expire: 86400
Minimum: 360

Dfrobot.com.cn HTML Validation

HTML Validation Tool

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Bad value “MSThemeCompatible” for attribute “http-equiv” on element “meta”.

No space between attributes.

Attribute “x-webkit-speech” not allowed on element “input” at this point.

Attribute “speech” not allowed on element “input” at this point.

Attribute “hidefocus” not allowed on element “a” at this point.

Attribute “sc” not allowed on element “button” at this point.

Bad value “article” for attribute “rel” on element “a”: The string “article” is not a registered keyword.

Bad value “forum” for attribute “rel” on element “a”: The string “forum” is not a registered keyword.

Bad value “user” for attribute “rel” on element “a”: The string “user” is not a registered keyword.

Duplicate attribute “type”.

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Bad value “http://wpa.qq.com/msgrd?V=3&uin=&Site=DF创客社区 - 分享创造的喜悦&Menu=yes&from=discuz” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Warnings

The “language” attribute on the “script” element is obsolete. You can safely omit it.

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

This document appears to be written in Simplified Chinese. Consider adding “lang="zh-hans"” (or variant) to the “html” start tag.

Dfrobot.com.cn Desktop Insights

Last tested: 12/10/2018

Desktop

Desktop Speed

28%

Optimize images

Leverage browser caching

Enable compression

Avoid landing page redirects

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Minify JavaScript

Minify CSS

Desktop Resource Breakdown

Total Resources	105
Number of Hosts	11
Static Resources	83
JavaScript Resources	17
CSS Resources	5

Dfrobot.com.cn Mobile Insights

Last tested: 12/10/2018

Mobile

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

40%

Optimize images

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Leverage browser caching

Avoid landing page redirects

Enable compression

Prioritize visible content

Minify JavaScript

Mobile Resource Breakdown

Total Resources	55
Number of Hosts	11
Static Resources	36
JavaScript Resources	11
CSS Resources	2

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Dfrobot.com.cn DFRobot官网-开源硬件,智能机器人和科创教育产品及服务提供商

DFRobot为全球创客提供产品和服务的综合性平台，致力于为青少年和创客爱好者提供开源硬件产品、机器人及零配件产品。已为全球超200多个国家和地区8000多所学校20000多名老师和同学提供创客教育产品和STEAM教育方案。

Quick Summary

Dfrobot.com.cn General Information

Dfrobot.com.cn Safety Information

Dfrobot.com.cn Server Information

Dfrobot.com.cn Domain Name Information

Dfrobot.com.cn HTML Validation

Dfrobot.com.cn Desktop Insights

Dfrobot.com.cn Mobile Insights

Dfrobot.com.cn Nearest Competitors

Dfrobot.com.cn Typos