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Sephir

sephir.app

A real AI agent in every browser tab. Reads, clicks, fills, compares — powered by your ChatGPT Plus or your own API keys.

[Private metric reference available after login.]

Key facts

Founded
August 2026
Based in
🇹🇷 Türkiye
Payments
Polar
Plans from
$39 a month
Revenue, 12 months
$126
Revenue, all time
$126
Domain registered
May 2026
Registrar
CloudFlare, Inc.
Listed on StartupsIntel
October 2026

Built with

React (frontend)Next.js (frontend)Cloudflare (backend)Polar (backend)

Daily revenue, last 30 days

Verified with Polar
$0$0$1$1$110-0310-1110-1910-2711-01

Monthly revenue

Verified with Polar
$0$50$10026-0926-10

Popularity by source

October 2026

Not in any top-million list

That usually means fewer than about 76.5K visits a month. New and niche sites rarely reach public rankings, we check again every month.

TrancoResearch list, average of several rankingsNot listed
Cloudflare RadarTraffic through Cloudflare's networkNot listed
Chrome UX ReportVisits by Chrome users, from GoogleNot listed
Cisco UmbrellaDNS lookupsNot listed
MajesticSites linking to itNot listed

Ranks for this exact domain, lower is more popular. How we combine them

Whois information

Domainsephir.app
RegistrarCloudFlare, Inc.
Registrar ID1910
Created date2026-05-14 09:18:38 UTC
Expires date2027-05-14 09:18:38 UTC
Updated date2026-05-19 09:18:38 UTC
Domain statusclient transfer prohibited
Name serversmargaret.ns.cloudflare.commiles.ns.cloudflare.com
DNSSECunsigned

Raw whois

Domain Name: SEPHIR.APP
Registry Domain ID: E154D30A6-APP
Registrar: CloudFlare, Inc.
Registrar IANA ID: 1910
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: +1.4153197517
Updated Date: 2026-05-19T09:18:38.420Z
Creation Date: 2026-05-14T09:18:38.420Z
Registry Expiry Date: 2027-05-14T09:18:38.420Z
Domain Status: client transfer prohibited
Name Server: MARGARET.NS.CLOUDFLARE.COM
Name Server: MILES.NS.CLOUDFLARE.COM
DNSSEC: unsigned
>>> Last update of RDAP database: 2026-11-04T10:00:20.140Z <<<

SEO audit

15 of 16 checks passed

95

SEO score

Response 1325 ms · 139 KB

  • Served over HTTPS
  • Title tag present
  • Title length 30 to 60 characters
  • Meta description present
  • Description length 70 to 160 characters
  • Exactly one H1 heading
  • Uses H2 sub-headings
  • Canonical URL set
  • Mobile viewport tag
  • Language declared
  • Open Graph tags
  • Twitter card tags
  • Structured data (JSON-LD)
  • Images have alt textAdd alt text to 2 images.
  • At least 300 words of content
  • Responds in under 1.5 seconds
Title (40 characters)
Sephir — The agent layer for the browser
Description (123 characters)
A multi-turn AI agent for every tab. Runs on your ChatGPT Plus subscription or your own API key. Local-first. Lifetime $39.
Headings
1 H1, 6 H2, 15 H3
Words on page
1,526
Links
27 internal, 7 external
Structured data
Organization, WebSite, SoftwareApplication, FAQPage

On-page keywords

PhraseMentions
chatgpt plus9
page text8
extract page7
extract page text7
page text tab6
text tab extract4
page17
chatgpt15

Tech stack and pricing

Lowest paid plan

$39 /month

Next.js Cloudflare

About Sephir

What is Sephir?

A real AI agent in every browser tab. Reads, clicks, fills, compares — powered by your ChatGPT Plus or your own API keys.

How much does Sephir cost?

Paid plans start at $39 per month, based on the public pricing page.