sfcb.org

.org crawl

First seen 2026-04-23 · Last seen 2026-05-17 · ok HTTP/1.1 200 18066 ms crawled 2026-05-17

US · 198.185.159.145 · AS53831 Squarespace, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
San Francisco Center for the Book
Language
en-US
Canonical
https://www.sfcb.org

Open Graph

url
https://www.sfcb.org
title
San Francisco Center for the Book
site name
San Francisco Center for the Book

Technology

Server
Squarespace
CMS
Squarespace
Fonts
  • Adobe Fonts
  • Google Fonts
Third-party hosts loaded (11)
  • definitions.sqspcdn.com×33
  • images.squarespace-cdn.com×20
  • assets.squarespace.com×12
  • static1.squarespace.com×5
  • cdn.jsdelivr.net×3
  • assets.squarewebsites.org×2
  • s3.amazonaws.com×2
  • use.typekit.net×2
  • fonts.googleapis.com×1
  • fonts.gstatic.com×1
  • p.typekit.net×1

Social

Contact

Email
Phone
Address
375 Rhode Island Street San Francisco, CA, 94103 United States

Registration

Registrar
Squarespace Domains LLC
Created
1996-04-04
Expires
2030-04-05 1416 days left
Updated
2025-07-17
Name servers
  • dns1.p02.nsone.net
  • dns2.p02.nsone.net
  • dns3.p02.nsone.net
  • dns4.p02.nsone.net
  • ns01.squarespacedns.com
  • ns02.squarespacedns.com
  • ns03.squarespacedns.com
  • ns04.squarespacedns.com

DNS records

Email authentication partial

SPF
v=spf1 include:_spf.google.com include:_spf.elasticemail.com include:sendgrid.net ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-03-21 to 2026-06-19
Expires in 30 days

HTTP security headers

Header hygiene 65/100 Checked live page: https://www.sfcb.org/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
findings
  • missing Content Security Policy
  • weak frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN, SAMEORIGIN
x-content-type-options
nosniff
strict-transport-security
max-age=15552000

Links to (4)

Linked from (2)