sfdsm.com

.com crawl

First seen 2026-05-08 · Last seen 2026-05-08 · ok HTTP/1.1 200 1802 ms crawled 2026-05-15

US · 50.116.9.151 · AS63949 Akamai Connected Cloud

Reputation 100/100

sector health type blog

HTML metadata

Title: Douglas L. Chenin, DDS – San Francisco Sleep Apnea Dentist
Description: Douglas Chenin, DDS focuses exclusively on treating Snoring and Obstructive Sleep Apnea with Oral Appliance Therapy at San Francisco Dental Sleep Medicine.

Open Graph

url: https://sfdsm.com/Page/Home
locale: en_US
site name: Douglas L. Chenin, DDS – San Francisco Sleep Apnea Dentist
description: Effective Treatment for Snoring and Sleep Apnea

Technology

Server: Apache

Third-party hosts loaded (1)

maps.google.com×1

Social

Contact

Phone

415-424-3313

Registration

Registrar

GoDaddy.com, LLC

Created

2015-04-14

Expires

2027-01-31 256 days left

Updated

2025-01-31

Name servers

ns37.domaincontrol.com
ns38.domaincontrol.com

DNS records live

NS

ns37.domaincontrol.com
ns38.domaincontrol.com

MX

10 mx1-us1.ppe-hosted.com
20 mx2-us1.ppe-hosted.com

TXT

NETORG9256719.onmicrosoft.com

Email authentication strong

SPF: v=spf1 a:dispatch-us.ppe-hosted.com a:cust1.webbypixel.com include:secureserver.net ~all
softfail (~all)
DMARC: v=DMARC1; p=quarantine; sp=reject; rua=mailto:dmarc@webbypixel.com; ruf=mailto:dmarc@webbypixel.com;
policy: quarantine · sp=reject
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-04-21 to 2026-07-20

Expires in 62 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://sfdsm.com/

present

content-security-policy

findings

missing HSTS
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

content-security-policy: frame-ancestors 'self'