indexo.dev

rowsncolumns.app

.app crawl

First seen 2026-04-15 · Last seen 2026-05-09 · ok HTTP/1.1 200 2269 ms crawled 2026-05-09

US · 76.76.21.21 · AS16509 Amazon.com, Inc.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Home - Rows n' Columns
Description
Spreadsheet 2 - High performance Canvas Spreadsheet component
Language
en

Open Graph

title
Rows n' Columns
description
Spreadsheet 2 - High performance Canvas Spreadsheet component

Technology

CDN
Vercel
CMS
Next.js

Social

DNS records live

NS
  • ns-cloud-c1.googledomains.com
  • ns-cloud-c2.googledomains.com
  • ns-cloud-c3.googledomains.com
  • ns-cloud-c4.googledomains.com
MX
  • 10 mxa.mailgun.org
  • 10 mxb.mailgun.org
Verified for
  • Stripe

Email authentication partial

SPF
v=spf1 include:mailgun.org ~all
softfail (~all)
DMARC
v=DMARC1; p=none;
policy: none (monitoring only)
DKIM
  • s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAswf1ppo0aDbLA/W9SLv61WAbHh1LKEYwOiTe5K0U0HrMrHH9Wsl2S9GwBCdRGtobSsRtxhmradxPh42cSZ…
  • s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0eUiiNW0oHzu5FCmiCl3lLJ5ogDGfJ7KGg5nsLJE5c9hUkrs3xXIZANxzJarZvWDup2d6UdpU4inrsL7RQ…
selectors probed

Certificate (current)

R12
from 2026-03-25 to 2026-06-23
Expires in 33 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.rowsncolumns.app/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=63072000

Links to (2)

Linked from (1)