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Total

DNS

Email

Security

Network

100

Availability

Domaincore77.com

IPv42

IPv62

MX records2

StatusActive

Domain technical report

Core77 / Industrial Design Magazine + Resource

core77.com

Magazine and resource offering calendar of events, firm listings, jobs section, forums, articles and competitions.

Generated: 2026-08-09T18:43:18-05:00 · Cached result

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IPv42

IPv62

MX2

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

✓

IPv6 (AAAA)10 / 10 pts · Dns

2 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 chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

2 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

88 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers0 / 35 pts · Security

0 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓

IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

✓

IPv6 connectivity35 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)

104.21.17.14
172.67.218.242

AAAA

2 record(s)

2606:4700:3036::6815:110e
2606:4700:3033::ac43:daf2

CNAME

0 record(s)

—

Not configured

MX

2 record(s)

20 mx2.emailsrvr.com.
10 mx1.emailsrvr.com.

TXT

6 record(s)

"pinterest-site-verification=6aa7f42973d63e00539ef551a530839f"
"google-site-verification=SWJEtOgL_UnQtsx26GLO7jybVvpmXuS1fwqdAjio520"
"v=spf1 include:_spf.createsend.com include:emailsrvr.com include:spf.mandrillapp.com ~all"
"google-site-verification=EAgFxwQi1ErZI1Rcj9o78wfl2oG_TV84f3QI8FGNCy8"
"google-site-verification=gbFTztK-W4w2zpoN0xmFRJp6-cZHqEZbESI4L9v8-tQ"
"google-site-verification=UlM1uQPvXXzYnFy_hkVEVrz5xk08WWYihlsHPftGAlA"

NS

2 record(s)

emily.ns.cloudflare.com.
jermaine.ns.cloudflare.com.

SOA

1 record(s)

emily.ns.cloudflare.com. dns.cloudflare.com. 2411659490 10000 2400 604800 1800

SPF

Configured

v=spf1 include:_spf.createsend.com include:emailsrvr.com include:spf.mandrillapp.com ~all

DMARC

Configured

v=DMARC1; p=none; rua=mailto:corejr@core77.com

DKIM

Selector mandrill

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB;

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Core77 / Industrial Design Magazine + Resource

Description

Magazine and resource offering calendar of events, firm listings, jobs section, forums, articles and competitions.

Final URL

https://www.core77.com/

HTTP status

200

HTTP

Status

HTTP/2 200

Final URL

https://www.core77.com/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Google Trust Services

core77.com

Valid from

2026-08-08T01:22:58-05:00

Valid until

2026-11-06T01:22:44-06:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

0 active

—

HSTSNot detected

—

Content Security PolicyNot detected

—

X-Content-Type-OptionsNot detected

—

X-Frame-OptionsNot detected

—

Referrer PolicyNot detected

—

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

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

104.21.17.14, 172.67.218.242

81,08 ms

Cloudflare

1.1.1.1

104.21.17.14, 172.67.218.242

26,31 ms

Quad9

9.9.9.9

104.21.17.14, 172.67.218.242

34,87 ms

OpenDNS

208.67.222.222

104.21.17.14, 172.67.218.242

77,88 ms

AdGuard

94.140.14.14

104.21.17.14, 172.67.218.242

92,55 ms

IP, geolocation and ASNAssociated network information

104.21.17.14

Identified

success

Yes

country

United States

country_code

region

California

city

San Francisco

latitude

37.7749113

longitude

-122.4185412

asn

13335

organization

Cloudflare, Inc.

isp

Cloudflare, Inc.

timezone

America/Los_Angeles

172.67.218.242

Identified

success

Yes

country

United States

country_code

region

California

city

San Francisco

latitude

37.7749113

longitude

-122.4185412

asn

13335

organization

Cloudflare, Inc.

isp

Cloudflare, Inc.

timezone

America/Los_Angeles

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

mx2.emailsrvr.com

Port 25: Closed/unreachable - 8.2 ms - 
Port 465: Closed/unreachable - 8.1 ms - 
Port 587: Closed/unreachable - 35.3 ms -

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