tuvikhoahoc.vn
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Technical Rating

 XSS attack - not protected. HTTP header "X-XSS-Protection" not found

 User Interface redress attack - not protected. HTTP header "X-Frame-Options" not found

 HTTP request response - 200

 HTTPS request response - 200

 Redirect from HTTP to HTTPS

iHTTP redirect: https://tuvikhoahoc.vn/

!Server response time 2,478 sec

!HTML load time 2,096 sec

iHTML length: 102596

 A link to a favicon is specified

iNumber of IMGs: 87

!The ALT attribute is not set for all IMGs

 Adapted for mobile devices. It uses the VIEWPORT tag

!W3C Validation. Number of HTML errors: 137

 W3C Validation. Number of HTML warnings: 21

 Uses robots.txt

!Doesn't use a sitemap

Exact physical location of Tuvikhoahoc.vn

iUS San Francisco 101 Townsend Street

Cloudflare, 101, Townsend Street, South Beach, San Francisco, California, 94107, United States

Technical Information

iServer: cloudflare

iIPv4: 104.21.77.105,   172.67.206.182

iIPv6: 2606:4700:3030::6815:4d69,   2606:4700:3037::ac43:ceb6

iDNS TXT Records: "v=spf1 a mx ~all"
"_globalsign-domain-verification=1eOHp3dk5hrxnd6vBVyXMpIuTsHm7cOB780waHGr08"

iDMARC Mail Anti Spam Records: 104.21.77.105,   172.67.206.182

iAuthor Domain Signing Practices Mail Records: 172.67.206.182,   104.21.77.105

iRaw IPv4 Information 104.21.77.105

[Querying whois.arin.net]
[whois.arin.net]

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2023, American Registry for Internet Numbers, Ltd.
#


NetRange:       104.16.0.0 - 104.31.255.255
CIDR:           104.16.0.0/12
NetName:        CLOUDFLARENET
NetHandle:      NET-104-16-0-0-1
Parent:         NET104 (NET-104-0-0-0-0)
NetType:        Direct Allocation
OriginAS:       AS13335
Organization:   Cloudflare, Inc. (CLOUD14)
RegDate:        2014-03-28
Updated:        2021-05-26
Comment:        All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref:            https://rdap.arin.net/registry/ip/104.16.0.0



OrgName:        Cloudflare, Inc.
OrgId:          CLOUD14
Address:        101 Townsend Street
City:           San Francisco
StateProv:      CA
PostalCode:     94107
Country:        US
RegDate:        2010-07-09
Updated:        2021-07-01
Ref:            https://rdap.arin.net/registry/entity/CLOUD14


OrgNOCHandle: CLOUD146-ARIN
OrgNOCName:   Cloudflare-NOC
OrgNOCPhone:  +1-650-319-8930
OrgNOCEmail:  [email protected]
OrgNOCRef:    https://rdap.arin.net/registry/entity/CLOUD146-ARIN

OrgAbuseHandle: ABUSE2916-ARIN
OrgAbuseName:   Abuse
OrgAbusePhone:  +1-650-319-8930
OrgAbuseEmail:  [email protected]
OrgAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

OrgTechHandle: ADMIN2521-ARIN
OrgTechName:   Admin
OrgTechPhone:  +1-650-319-8930
OrgTechEmail:  [email protected]
OrgTechRef:    https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

OrgRoutingHandle: CLOUD146-ARIN
OrgRoutingName:   Cloudflare-NOC
OrgRoutingPhone:  +1-650-319-8930
OrgRoutingEmail:  [email protected]
OrgRoutingRef:    https://rdap.arin.net/registry/entity/CLOUD146-ARIN

RTechHandle: ADMIN2521-ARIN
RTechName:   Admin
RTechPhone:  +1-650-319-8930
RTechEmail:  [email protected]
RTechRef:    https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

RNOCHandle: NOC11962-ARIN
RNOCName:   NOC
RNOCPhone:  +1-650-319-8930
RNOCEmail:  [email protected]
RNOCRef:    https://rdap.arin.net/registry/entity/NOC11962-ARIN

RAbuseHandle: ABUSE2916-ARIN
RAbuseName:   Abuse
RAbusePhone:  +1-650-319-8930
RAbuseEmail:  [email protected]
RAbuseRef:    https://rdap.arin.net/registry/entity/ABUSE2916-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2023, American Registry for Internet Numbers, Ltd.
#

iRaw DNS Information

A: 104.21.77.105
A: 172.67.206.182

AAAA: 2606:4700:3030::6815:4d69
AAAA: 2606:4700:3037::ac43:ceb6

TXT: "v=spf1 a mx ~all"
TXT: "_globalsign-domain-verification=1eOHp3dk5hrxnd6vBVyXMpIuTsHm7cOB780waHGr08"

DMARC: 104.21.77.105
DMARC: 172.67.206.182

ADSP: 172.67.206.182
ADSP: 104.21.77.105