indexo.dev

johnbostanci.com

.com crawl

First seen 2026-04-23 · Last seen 2026-05-16 · ok HTTP/1.1 200 13364 ms crawled 2026-05-16

US · 185.199.110.153 · AS54113 Fastly, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
John Bostanci
Description
John Bostanci is a PhD student in theoretical computer science at Columbia University, researching quantum computation, quantum cryptography, and algorithms for learning from quantum data.
Language
en-us
Generator
Hugo 0.139.0
Canonical
https://www.johnbostanci.com/

Open Graph

url
https://www.johnbostanci.com/
title
John Bostanci
locale
en_us
site name
John Bostanci
description
John Bostanci is a PhD student in theoretical computer science at Columbia University, researching quantum computation, quantum cryptography, and algorithms for learning from quantum data.

Technology

CDN
Fastly
Server
GitHub.com
CMS
Hugo
Analytics
  • Google Tag Manager

Third-party hosts loaded (1)

  • www.googletagmanager.com×1

Registration

Registrar
Squarespace Domains II LLC
Created
2023-08-04
Expires
2026-08-04 76 days left
Updated
2025-07-20
Name servers
  • ns-cloud-a1.googledomains.com
  • ns-cloud-a2.googledomains.com
  • ns-cloud-a3.googledomains.com
  • ns-cloud-a4.googledomains.com

DNS records live

NS
  • ns-cloud-a1.googledomains.com
  • ns-cloud-a2.googledomains.com
  • ns-cloud-a3.googledomains.com
  • ns-cloud-a4.googledomains.com

Email authentication no MX

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-24 to 2026-07-23
Expires in 65 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (12)

Linked from (1)