indexo.dev

synthesis.com

.com crawl

First seen 2026-05-02 · Last seen 2026-05-09 · ok HTTP/1.1 200 3835 ms crawled 2026-05-09

US · 188.114.97.3 · AS13335 Cloudflare, Inc.

Reputation 89/100 weak security headers dmarc monitor-only

sector education type homepage

HTML metadata

Title
Synthesis Tutor
Description
Master elementary math with tools born out of the SpaceX school. Learning that adapts to your child's needs. Available on iPad and desktop.
Language
en
Canonical
https://www.synthesis.com/tutor

Open Graph

title
Synthesis Tutor
description
Master elementary math with tools born out of the SpaceX school. Learning that adapts to your child's needs. Available on iPad and desktop.

Technology

CDN
Cloudflare
Fonts
  • Google Fonts

Third-party hosts loaded (6)

  • cdn.prod.website-files.com×54
  • ajax.googleapis.com×1
  • d3e54v103j8qbb.cloudfront.net×1
  • fonts.googleapis.com×1
  • fonts.gstatic.com×1
  • js.hs-scripts.com×1

Social

Registration

Registrar
NameCheap, Inc.
Created
1991-07-08
Expires
2028-06-16 758 days left
Updated
2022-05-18
Name servers
  • aisha.ns.cloudflare.com
  • decker.ns.cloudflare.com

DNS records live

NS
  • aisha.ns.cloudflare.com
  • decker.ns.cloudflare.com
MX
  • 1 aspmx.l.google.com
  • 10 alt3.aspmx.l.google.com
  • 10 alt4.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
  • 5 alt2.aspmx.l.google.com
TXT
Show 6 TXT records
  • apple-domain-verification=Ukymf3NrGgQRH2Kx
  • google-site-verification=4Z2Fc7zAYsYrsQmFVinLanpYZaJNk2OO8r-nkiFkMcQ
  • google-site-verification=zzi0n1SMzV_zdxK4I3Ox_Vmmnb1WFMKvRfoeWSMYatg
  • include:20081375.spf08.hubspotemail.net
  • include:48544257.spf04.hubspotemail.net
  • mandrill_verify.M-HdeuAVhAKIRxzslFVJhw

Email authentication partial

SPF
v=spf1 include:spf.mandrillapp.com ?all
neutral (?all)
DMARC
v=DMARC1; p=none; rua=mailto:dmarc@synthesis.is
policy: none (monitoring only)
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAipIbTAb/QumEeO5tcv2LR39x2DJm4EUxo+b7GY/x0l2W+vGosaN4uVyBk2Nkuo3xHROeUSyBqLNdMX…
selectors probed

Certificate (current)

WE1
from 2026-03-20 to 2026-06-18
Expires in 30 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.synthesis.com/tutor

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

Links to (6)

Linked from (1)