Domain technical report
Attention Required! | Cloudflare
jhsph.edu
IPv41
IPv60
MX1
NS2
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71
Total
85
DNS
90
Email
73
Security
20
Network
60
Availability
Domainjhsph.edu
IPv41
IPv60
MX records1
StatusActive
DiagnosticsMain findings and recommendations
IPv4 (A)30 / 30 pts · Dns
1 IPv4 address(es) detected.
IPv6 (AAAA)0 / 10 pts · Dns
0 IPv6 address(es) detected.
Name server redundancy20 / 20 pts · Dns
2 NS record(s); 2 or more required.
SOA record10 / 10 pts · Dns
Authoritative zone record.
DNSSEC chain15 / 15 pts · Dns
DS and DNSKEY detected.
CAA policy0 / 5 pts · Dns
Certificate authority restriction.
DNS propagation10 / 10 pts · Dns
Agreement between public resolvers.
MX records20 / 20 pts · Mail
1 MX record(s).
SPF25 / 25 pts · Mail
SPF policy published.
DMARC25 / 25 pts · Mail
DMARC policy published.
DKIM20 / 20 pts · Mail
A DKIM selector was verified.
MTA-STS0 / 5 pts · Mail
Mail transport policy.
TLS-RPT0 / 5 pts · Mail
TLS reporting policy.
Valid TLS certificate55 / 55 pts · Security
87 day(s) remaining.
Certificate lifetime10 / 10 pts · Security
Full points require at least 30 days remaining.
HTTP security headers8 / 35 pts · Security
2 of 9 evaluated headers detected.
PTR reverse DNS0 / 30 pts · Network
PTR not detected.
IPv4 diversity20 / 35 pts · Network
Two or more IPv4 addresses receive full points.
IPv6 connectivity0 / 35 pts · Network
AAAA availability.
DNS resolution40 / 40 pts · Availability
At least one address family must resolve.
HTTP response0 / 40 pts · Availability
HTTP/2 403
HTTPS final URL20 / 20 pts · Availability
Final URL uses HTTPS.
DNS and emailPublished records and email configuration
A
1 record(s)128.220.193.2
AAAA
0 record(s)—
Not configured
CNAME
0 record(s)—
Not configured
MX
1 record(s)10 smtp.johnshopkins.edu.
TXT
3 record(s)"MS=ms69723760" "v=spf1 ip4:128.220.39.0/24 ip4:162.129.199.0/24 -all" "D7E44DA5BD9654531E8E34B4A766272D"
NS
2 record(s)ens1.jhmi.edu. ens1.jhu.edu.
SOA
1 record(s)ens1.jhu.edu. hostmaster.jhu.edu. 2023105806 1200 3600 1209600 3600
CAA
0 record(s)—
Not configured
DS
1 record(s)49064 13 2 76956CA1D6EF61D0212886B70FE65DDA256031FC0CF69C0E19C9DD4F 5CCC8363
DNSKEY
4 record(s)256 3 13 eeAwjb0TD8H4qdU6tDubWAetjz1j9fneJWy48+0BMsCcJ0wicaSE4VXK A6u+ZGoQ24pPGhRx+CCPNE81F51EHg== 256 3 13 Ak9stmd6/i5WKEw74GxD1epub1CLMxXritO30zjOw9DPCOkgt9bKl23P U/0qVn2MTvd2d6iZDRV6awSNtqqEcg== 257 3 13 E6SP0obv71Ly+/cr8JggOQs6kQrHWaWDvVuuH/S/ROsW1S9T5qyiPY2b Bs+Y2iSc3znVocjDSpQQUlRFo/oG5Q== 256 3 13 vBXMEbfKRy5U84mIywdUBLYt4uoZPbuIHQnqcY+1/t+oJPiikfjPqHEb tNECGD6LFBJi+hv18UnJa9KgSS6VhQ==
RRSIG
4 record(s)NS 13 2 3600 20260905175858 20260806175042 62633 jhsph.edu. GcMW/S8Op+qethbyhhK9vrs9riwXCSGmKfOZaCMV1B1SgpwE7TkNtWdd Dqt8eltpzg/QQ2akQjxZyLcS9Ib4SA== A 13 2 3600 20260905175858 20260806175042 62633 jhsph.edu. dY2lS7PdHkDaqD1i0HDFyvAqbf0ju9uN54atJWwtzjmfj5LtcYO1q+Yw 05x+qgrIv6EWjkEuTqdEKD2o10UnAQ== MX 13 2 3600 20260905175858 20260806175042 62633 jhsph.edu. 01j9rl571NlDYNZwqEhdzXX1unMVaVBTehFfQdaym1FxWbUujCflyZWV FrcpjjnDk42/NmVXmyRSHTSzYcnRRg== DS 13 2 86400 20260816033301 20260809022301 6705 edu. YZFyLKGU/0gOg/HFwv5lqIfzm/UrSUJKc2h8vOAQPWYa65BWAdyMyDwF xrYXXl6lfV2PeXFkTy4al6SryVTE/Q==
NSEC
0 record(s)—
Not configured
NSEC3
0 record(s)—
Not configured
SRV
0 record(s)—
Not configured
NAPTR
0 record(s)—
Not configured
TLSA
0 record(s)—
Not configured
SSHFP
0 record(s)—
Not configured
SPF
Configuredv=spf1 ip4:128.220.39.0/24 ip4:162.129.199.0/24 -all
DMARC
Configuredv=DMARC1; p=none; rua=mailto:twd3anjc@ag.dmarcian.com; ruf=mailto:twd3anjc@fr.dmarcian.com
DKIM
Selector k1k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUoNyIR4Bn84LVcfZE20rmDeXQblIupNWBqLXM1Q+VieI/eZu/7k9/vOkLSaQQdml4Cv8lb3PcnluMVIhQIDAQAB;
Analyzed webpageMetadata and HTTP response
Title and description
ExtractedTitle
Attention Required! | Cloudflare
Description
Final URL
https://publichealth.jhu.edu/
HTTP status
403
HTTP
Status
HTTP/2 403
Final URL
https://publichealth.jhu.edu/
Version
3
Server
cloudflare
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
Yes
Issuer
Internet2
CN
jhsph.edu
Valid from
2026-04-19T19:00:00-05:00
Valid until
2026-11-04T17:59:59-06:00
Days remaining
87
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384
Security headers
2 activeHSTSNot detected
Content Security PolicyNot detected
X-Content-Type-OptionsNot detected
X-Frame-OptionsImplemented
Referrer PolicyImplemented
Permissions PolicyNot detected
Cross-Origin-Opener-PolicyNot detected
Cross-Origin-Embedder-PolicyNot detected
Cross-Origin-Resource-PolicyNot detected
DNS propagationComparison across public resolvers
Public resolver comparison
ConsistentConsistent propagation
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.8128.220.193.2
99,41 ms
Cloudflare
1.1.1.1128.220.193.2
90,49 ms
Quad9
9.9.9.9128.220.193.2
143,17 ms
OpenDNS
208.67.222.222128.220.193.2
175,37 ms
AdGuard
94.140.14.14128.220.193.2
121,31 ms
IP, geolocation and ASNAssociated network information
128.220.193.2
No datasuccess
No
country
region
city
asn
organization
isp
Visitor information
Visitorip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No
SMTPEmail port connectivity
smtp.johnshopkins.edu
Port 25: Closed/unreachable - 34.3 ms - Port 465: Closed/unreachable - 4050.4 ms - Port 587: Closed/unreachable - 63 ms - 554 IronMTW4.johnshopkins.edu