jsonl.co

.co crawl

First seen 2026-04-23 · Last seen 2026-05-14 · ok HTTP/1.1 200 6541 ms crawled 2026-05-17

US · 104.21.84.211 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
JSONL Viewer & Editor Online — Open Large JSONL Files (No...
Description
Use this JSONL viewer to open, search, and edit JSONL (JSON Lines/NDJSON) files up to 1GB in your browser. Free, private, no uploads — with validation and to...
Language
en
Canonical
https://jsonl.co
Translations
  • de
  • en
  • es
  • fr
  • it
  • ja
  • ko
  • nl
  • pl
  • pt
  • zh
  • zh-tw

Open Graph

url
https://jsonl.co
title
JSONL Viewer & Editor Online — Open Large JSONL Files (No...
locale
en
site name
jsonl.co
description
Use this JSONL viewer to open, search, and edit JSONL (JSON Lines/NDJSON) files up to 1GB in your browser. Free, private, no uploads — with validation and to...
locale:alternate
pl

Technology

CDN
Cloudflare
CMS
Next.js
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • plausible.hopepaddy.com×1
  • www.googletagmanager.com×1

DNS records live

NS
  • dion.ns.cloudflare.com
  • raquel.ns.cloudflare.com
TXT
  • google-site-verification=DZNGFXPY8C70jQlpn57a6ZmYJ8Dxj2leRp7mivMWjT8

Email authentication no MX

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

Certificate (current)

WE1
from 2026-04-07 to 2026-07-06
Expires in 47 days

HTTP security headers

Header hygiene 30/100 Checked live page: https://jsonl.co/

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

Links to (2)

Linked from (1)