jlem.com

HTML metadata

Technology

Server

Apache

Fonts

• Adobe Fonts
• Google Fonts

Third-party hosts loaded (4)

• d20j9xtxuc1as2.cloudfront.net×14
• fonts.googleapis.com×1
• use.typekit.net×1
• www.google.com×1

Social

• youtube
• linkedin

Contact

Email

• jacobslevy@jlem.com

Registration

Registrar

Amazon Registrar, Inc.

Created

1997-01-02

Expires

2032-01-01 2050 days left

Updated

2026-05-16

Name servers

• ns-1004.awsdns-61.net
• ns-1077.awsdns-06.org
• ns-1824.awsdns-36.co.uk
• ns-296.awsdns-37.com

DNS records live

NS

• ns-1004.awsdns-61.net
• ns-1077.awsdns-06.org
• ns-1824.awsdns-36.co.uk
• ns-296.awsdns-37.com

MX

• 10 us-smtp-inbound-1.mimecast.com
• 10 us-smtp-inbound-2.mimecast.com

TXT

• have-i-been-pwned-verification=dweb_xm9nh6bsx22jxbu2tp161wcf
• FftGoPNyeJnzn2U9knqeMeCPIfFTsWWY2res2SpneVt/OFOLuRF0qXc/IpDA8dhui6YK2/jK/l89Zm277MkLcQ==

Verified for

• Apple
• Atlassian
• Microsoft 365
• OpenAI

Email authentication strong

SPF

v=spf1 mx include:us._netblocks.mimecast.com include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf.constantcontact.com ip4:199.166.3.0/24 ip4:198.175.186.0/24 ip4:34.237.63.166/32 ip4:35.173.76.159 -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:InfrastructureLogs@jlem.com; ruf=mailto:InfrastructureLogs@jlem.com; fo=1; pct=100

policy: quarantine

DKIM

no key found at common selectors

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 75/100 Checked live page: https://jlem.com/

present

• strict-transport-security
• x-frame-options
• x-content-type-options
• referrer-policy

findings

• missing Content Security Policy
• missing Permissions Policy

Links to (2)

• linkedin.com×2
• youtube.com×2

Linked from (1)

• mayoarts.org×2