Press Kit

CertSeal

App icon

Direct link: https://obelisk.club/apps/sslchecker/icon.svg

Theme color: #F0EEE9

Boilerplate description

Use any portion freely. For coverage assistance, email below.

CertSeal instantly checks any website's SSL/TLS certificate — directly from your device, with no accounts, no servers, and no data collection. Type a domain and see: • Certificate grade (A+ to F) • Days until expiry with clear color coding • Issuer and subject details • Full certificate details on demand Built for developers, sysadmins, and anyone who needs to verify an HTTPS connection is healthy. All checks run peer-to-peer from your iPhone straight to the target server. Nothing goes through our infrastructure. Pro unlock adds: • Batch check up to 20 domains at once • Export results via share sheet • Full certificate details (serial, algorithm, SAN names)

Key features

Download links

IOS: https://apps.apple.com/app/id6785858935

Founder quote

“CertSealis built around one principle: your data stays on your device. We don't want it, we don't store it, and we don't need it to make the app work. Everything that can run locally, does.”
— Peter Zhang, solo developer, Obelisk Club

About Obelisk Club

Obelisk Club is a portfolio of focused, local-first Mac and iOS productivity apps built by a solo developer. The portfolio includes 13 apps spanning note-taking, screenshots, photo workflow, beverage tracking, file compression, and more — all sharing a single principle: software that works without an account, without a cloud, and without a subscription.

Press contact

obeliskclubclub@gmail.com

https://obelisk.club

Happy to share a complimentary Pro promo code, schedule a Q&A, or provide additional materials. Typical response within 24 hours.

Quick facts

App name: CertSeal
Maker: Peter Zhang · Obelisk Club
Theme color: #F0EEE9
Contact: obeliskclubclub@gmail.com