Products

Certly

Don't find out your SSL expiredwhen your customers do.

certly.dev Software Development / Monitoring & Observability

AI Benchmark
Desktop
Mobile
Monthly visits
<5K
Oct 2026
Public revenue
Undisclosed
No public revenue evidence yet
Entry price
$12/mo
Lower than 53% of peersNiche median $15/mo
Creators
Koizumi Fumiya
No social account linked
Launched
5mo ago
2026-06-30 · Est.

Traffic

Last 12 months
Monthly visitsData through Oct 2026
Events2 marketing moves

Marketing moves

Launches, search & content, referrals, promotions

  • Launched on Product HuntLaunch

    Know before your SSL, domain, or DNS breaks

    Jul 5 · 4mo agoLaunch page

  • Launched on Uneed (#20)Launch

    Certly — Monitor SSL, domain expiry & DNS changes with alerts

    Jun 30 · 5mo agoLaunch page

Traffic sources

Oct 2026

Traffic breakdown

Channels

  • Organic Search30%
  • Direct28%
  • Referrals13%
  • Display Ads9%
  • Other21%

Countries

  • Japan100%

Search

Domain authority —Domain registered 2026-06-06

KeywordMonthly volume
net::err_cert_common_name_invalid6,770
nii 証明書 有効期限1,020
nii クライアント証明書 期限450
upki acme dns220
upki 証明書 acme220

Traffic data: Vaneform

Pricing

Free
Free
2 monitored sites · Email notifications · Daily checks · 30-day expiry alert · Domain suspension alerts (registry status) · No history
Pro
$12/mo
Billed annually $10/mo-17%
25 monitored sites · Email, Slack, Discord, Webhook · Checks every 6 hours · Staged alerts: 30 / 14 / 7 / 1 day · 90-day history · DNS & DNSSEC monitoring (30-day activity)
Business
$39/mo
Billed annually $32.5/mo-17%
150 monitored sites · Email, Slack, Discord, Webhook · Checks every 6 hours · Staged alerts: 30 / 14 / 7 / 1 day · 1-year history · Client grouping

Trial: None · Free tier included · 2 paid tiers ($12–$39) · Up to 17% off annually · Observed 2026-10-31 · Pricing page

Entry price $12/mo, Lower than 53% of peers; “Monitoring & Observability” median is $15/mo.View pricing benchmark

Pages & changes

Tracked since 2026-07-05

Key pages

Weekly snapshots

Changes

No pricing, plan, or positioning changes detected since tracking started.

Questions & evidence

How much does Certly cost?
Free: Free; Pro: $12/mo (annual billing available); Business: $39/mo (annual billing available). Observed 2026-10-31. Check the source for current billing terms, usage limits and taxes.Source
How much website traffic does Certly get?
Vaneform estimates <5K website visits in 2026-10. Visits can include repeat visits; this estimate measures web traffic separately from paying customers or revenue.Source
What is Certly and what platforms does it support?
Certly is catalogued under Monitoring & Observability: Don't find out your SSL expiredwhen your customers do.. Supported platforms: Web.

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