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Gridlode
Rank #9,036Updated November 10, 2026

91tcw.cc

优你-乐享城市-校园综合信息生活服务平台|校园外卖平台|校园跑腿配送|高校生活圈|校园APP|校园外卖系统|校园跑腿系统,打造专属品牌校园生活服务平台

91tcw.cc is registered with Alibaba Cloud Computing (Beijing) Co., Ltd. since July 27, 2016 (10.3 years). The registration expires on July 27, 2027. The site runs on jQuery, Nginx. Its email security grade is F. Its SSL certificate is issued by Let's Encrypt and is valid for 33 more days.

Domain age
10.3 yrs
Technologies
2
Email security
F
SSL days left
33

Registration

RegistrarAlibaba Cloud Computing (Beijing) Co., Ltd.
IANA ID420
RegisteredJuly 27, 2016
ExpiresJuly 27, 2027
UpdatedJuly 21, 2026
Statusactive
Name serversvip3.alidns.com, vip4.alidns.com
DNSSECNot signed

DNS records

TypeValueTTL
A120.233.179.12960
A218.11.1.24160
A218.12.77.9060
A218.60.101.8060
A221.229.162.6260
A223.247.106.5760
A106.225.240.2460
A116.153.39.12860
A120.39.165.5060
A120.52.95.23760
NSvip3.alidns.com86400
NSvip4.alidns.com86400

Technology stack

JavaScript library
Web server

SSL certificate

ValidValid
IssuerUS, YR2, Let's Encrypt
ExpiresDecember 14, 2026
Days remaining33
ProtocolTLSv1.3
Names*.21app.cc, *.21chance.com, *.91city.cc, *.91tcw.cc, *.i.21app.cc, *.i.21chance.com, *.i.91city.cc, *.i.91tcw.cc, 21app.cc, 21chance.com, 91tcw.cc

Email security

FScore 15/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • badNo SPF record. Anyone can send email that claims to come from 91tcw.cc. Domains that send no email should publish "v=spf1 -all".
  • badNo DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.
  • warnNo DKIM key found at common selectors (google, selector1, selector2, default, k1, k2, s1, s2, ...). DKIM may still use a custom selector we cannot guess.
  • warnNo MX records: this domain cannot receive email.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).

Homepage metadata

Title优你-乐享城市-校园综合信息生活服务平台|校园外卖平台|校园跑腿配送|高校生活圈|校园APP|校园外卖系统|校园跑腿系统,打造专属品牌校园生活服务平台
Description优你校园乐享城市生活服务APP系统为高校运营者提供校园生活服务平台+配送服务一整套解决方案,帮助运营者在校园外卖、校园跑腿配送、校园信息发布等校园生活领域助力,打造一个智能化本地高校生活圈。
IndexableYes
Word count241

About 91tcw.cc

Who is the registrar of 91tcw.cc?

91tcw.cc is registered with Alibaba Cloud Computing (Beijing) Co., Ltd. (IANA ID 420).

When does 91tcw.cc expire?

The current registration of 91tcw.cc expires on July 27, 2027. It was first registered on July 27, 2016.

What technology does 91tcw.cc use?

We detected 2 technologies on 91tcw.cc, including jQuery, Nginx.

Does 91tcw.cc protect its email with SPF and DMARC?

91tcw.cc scores 15/100 (grade F) for email security. No SPF record. Anyone can send email that claims to come from 91tcw.cc. Domains that send no email should publish "v=spf1 -all". No DMARC record. Receivers have no instructions for mail that fails SPF and DKIM, and you get no reports about who sends as your domain.

What are the name servers of 91tcw.cc?

91tcw.cc uses vip3.alidns.com, vip4.alidns.com.