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harper.fast

.fast ok HTTP/1.1 200 990 ms

First seen 2026-05-20 · Last seen 2026-05-20 · crawled 2026-06-17

US · 198.202.211.1 · AS209242 Cloudflare London, LLC

Reputation 100/100

sector tech type homepage

HTML metadata

Title
Harper: One Runtime for Apps, Agents, and Data
Description
Scalable performance for production apps, AI agents, streaming, and APIs in one in-process runtime. ~1ms data retrieval and up to 85% fewer LLM calls at scale.
Language
en
Canonical
https://www.harper.fast
Feeds
active last post 4 days ago

Open Graph

title
Harper: One Runtime for Apps, Agents, and Data
description
Scalable performance for production apps, AI agents, streaming, and APIs in one in-process runtime. ~1ms data retrieval and up to 85% fewer LLM calls at scale.

Contact

Technology

CDN
Cloudflare
jQuery
3.5.1
Analytics
  • Google Tag Manager
Cookie consent
  • Iubenda
Fonts
  • Google Fonts
Third-party hosts loaded (17)
  • cdn.prod.website-files.com×82
  • cdn.iubenda.com×3
  • calendar.google.com×2
  • www.harper.fast×2
  • 117738906.intellimizeio.com×1
  • ajax.googleapis.com×1
  • api.intellimize.co×1
  • cdn.intellimize.co×1
  • cdnjs.cloudflare.com×1
  • cs.iubenda.com×1
  • d3e54v103j8qbb.cloudfront.net×1
  • fonts.googleapis.com×1
  • fonts.gstatic.com×1
  • js.hs-scripts.com×1
  • log.intellimize.co×1
  • www.google.com×1
  • www.googletagmanager.com×1

Social

Registration

Registrar
Marcaria International LLC
Created
2025-10-06
Expires
2026-10-06 107 days left
Updated
2025-10-08
Name servers
  • ns-1829.awsdns-36.co.uk
  • ns-1224.awsdns-25.org
  • ns-25.awsdns-03.com
  • ns-625.awsdns-14.net

DNS records live

NS
  • ns-1224.awsdns-25.org
  • ns-1829.awsdns-36.co.uk
  • ns-25.awsdns-03.com
  • ns-625.awsdns-14.net
Verified for
  • Anthropic
  • Cisco
  • Google

Email authentication no MX

SPF
v=spf1 -all
strict (-all)
DMARC
v=DMARC1; p=reject; rua=mailto:3kkfbgnp@ag.us.dmarcian.com;
policy: reject (enforced)
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-06-01 to 2026-08-30
Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.harper.fast/

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=31536000

Links to (10)

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