What powers opag.io?

Last seen Oct 2026 · 7 technologies across 6 categories

Databases

Firebase
since Apr 2026

Font scripts

Google Font API
since Apr 2026

Issue trackers

UptimeRobot
since Oct 2026

Miscellaneous

HTTP/3
since Apr 2026
Open Graph
since Feb 2023

PaaS

SiteGround
since Feb 2023

Security

HSTS
since Apr 2026

AI Crawlers

Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Oct 2026.

Training crawlers

  • AI2Bot Allowed
  • Applebot-Extended Allowed
  • Bytespider Allowed
  • CCBot Allowed
  • ClaudeBot Allowed
  • cohere-training-data-crawler Allowed
  • Diffbot Allowed
  • FacebookBot Allowed
  • Google-CloudVertexBot Allowed
  • Google-Extended Allowed
  • GoogleOther Allowed
  • GPTBot Allowed
  • meta-externalagent Allowed

Search and AI assistants

  • Amazonbot Allowed
  • Applebot Allowed
  • Claude-SearchBot Allowed
  • DuckAssistBot Allowed
  • OAI-SearchBot Allowed
  • PerplexityBot Allowed
  • YouBot Allowed

User-request fetchers

  • ChatGPT-User Allowed
  • Claude-User Allowed
  • GoogleAgent-Mariner Allowed
  • meta-externalfetcher Allowed
  • MistralAI-User Allowed
  • Perplexity-User Allowed

The other 7 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.

See who blocks each AI crawler across the web

AI Crawlers

No AI crawlers blocked

Standards: llms.txt, llms-full.txt, ai.txt

Full breakdown

Audience

  • 67% desktop
  • 33% phone
  • India
  • United States

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

1.97 / 10 · ranked #3,659,662 of all domains

10 referring domains · OpenPageRank

Core Web Vitals

LCP1.7 s
INP50 ms
CLS0
TTFB1100 ms

Real user p75, Chrome UX Report, Oct 2026.

Page

  • Language: English
  • CDN: Fastly
  • Weight: 0.1 MB · 14 requests
  • Structured data: JSON-LD, OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Oct 2026.

Organisation

From the homepage's own structured data (Oct 2026).

Infrastructure

  • Hosted on Fastly (199.36.158.100)
  • Email: no MX record returned
  • SSL: Google Trust Services, RSA 2048, expires Nov 2026
  • Common Crawl link graph: rank 11,085,819

DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted

Full technology history →
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