optonet-jena.de

HTML metadata

Technology

Server

Apache

CMS

WordPress

Fonts

• Google Fonts

Third-party hosts loaded (2)

• fonts.googleapis.com×1
• kit.fontawesome.com×1

Social

• linkedin

Contact

Email

• info@optonet-jena.de

Phone

• +4936413279290

Registration

Updated

2020-12-17

Name servers

• ns19.domaincontrol.com.
• ns20.domaincontrol.com.

DNS records live

NS

• ns19.domaincontrol.com
• ns20.domaincontrol.com

MX

• 10 optonetjena-de01i.mail.protection.outlook.com

Verified for

• Microsoft 365

Email authentication weak

SPF

v=spf1 a mx include:spf.server-he.de include:spf.protection.outlook.com -all

strict (-all)

DMARC

not published

DKIM

no key found at common selectors

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://optonet-jena.de/

findings

• missing HSTS
• missing Content Security Policy
• missing frame protection
• missing content type protection
• missing Referrer Policy
• missing Permissions Policy

Links to (15)

• lasertagung-jena.de×4
• hansephotonik.de×3
• linkedin.com×3
• optecbb.de×3
• optikkolloquium.de×3
• optonet.info×3
• photonicnet.de×3
• photonicsbw.de×3
• quantifisens.com×3
• silicon-saxony.de×3
• ukpino.com×3
• ultra-precision-workshop.de×3
• w3-fair.com×3
• bayern-photonics.de×3
• wetzlar-network.de×3

Linked from (12)

• frauen-verbinden.de×3
• optonet.info×3
• 5microns.de×2
• sioptica.com×2
• perceptec.de×2
• spaceoptix.de×2
• optikkolloquium.de×2
• ultra-precision-workshop.de×2
• lasertagung-jena.de×2
• photonicnet.de×2
• rayvenlaser.com×1
• epic-photonics.com×1