BlackStack
blackstack.io
BlackStack is a Chrome extension for saving, organizing, and reusing your best snippets, replies, and message templates across Gmail, Outlook, LinkedIn, Reddit, and other tabs. Instead of relying on full AI automation, BlackStack helps you keep a curated library of high quality messages that you can quickly paste or trigger when needed. Built for people who send repeat messages but still want control over quality and context, including sales, marketing, legal, customer support, recruting etc.
Key facts
- Founder
- Tristan · 87 followers
- Founded
- March 2026
- Based in
- 🇫🇷 France
- Payments
- Polar
- Plans from
- $1200 a month
- Domain registered
- January 2026
- Registrar
- Cloudflare, Inc.
- Listed on StartupsIntel
- October 2026
Built with
Daily revenue, last 30 days
Verified with PolarMonthly revenue
Verified with PolarPopularity by source
October 2026Not 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 rankings | Not listed |
|---|---|
| Cloudflare RadarTraffic through Cloudflare's network | Not listed |
| Chrome UX ReportVisits by Chrome users, from Google | Not listed |
| Cisco UmbrellaDNS lookups | Not listed |
| MajesticSites linking to it | Not listed |
Ranks for this exact domain, lower is more popular. How we combine them
Whois information
| Domain | blackstack.io |
|---|---|
| Registrar | Cloudflare, Inc. |
| Registrar ID | 1910 |
| Created date | 2026-01-15 05:11:35 UTC |
| Expires date | 2027-01-15 05:11:35 UTC |
| Updated date | 2026-01-23 08:21:20 UTC |
| Domain status | clienttransferprohibited |
| Name servers | chris.ns.cloudflare.comfiona.ns.cloudflare.com |
| DNSSEC | unsigned |
| Registrant country | 🇫🇷 France |
Raw whois
Domain Name: BLACKSTACK.IO Registry Domain ID: bb4314993f604e4b8145c48930abf8d6-DONUTS Registrar WHOIS Server: whois.cloudflare.com Registrar URL: https://www.cloudflare.com Updated Date: 2026-01-23T08:21:20Z Creation Date: 2026-01-15T05:11:35Z Registrar Registration Expiration Date: 2027-01-15T05:11:35Z Registrar: Cloudflare, Inc. Registrar IANA ID: 1910 Domain Status: clienttransferprohibited https://icann.org/epp#clienttransferprohibited Registrant State/Province: Pyrénées-Atlantiques, Nouvelle-Aquitaine Registrant Country: FR Registrant Phone: +1.4153197517 Admin Phone: +1.4153197517 Tech Phone: +1.4153197517 Billing Phone: +1.4153197517 Name Server: chris.ns.cloudflare.com Name Server: fiona.ns.cloudflare.com DNSSEC: unsigned Registrar Abuse Contact Email: [email protected] Registrar Abuse Contact Phone: +1.4153197517
SEO audit
13 of 16 checks passed83
SEO score
Response 4477 ms · 182 KB
- Served over HTTPS
- Title tag present
- Title length 30 to 60 charactersKeep the title between 30 and 60 characters.
- Meta description present
- Description length 70 to 160 charactersKeep the description between 70 and 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 text
- At least 300 words of content
- Responds in under 1.5 secondsSpeed up the server response (caching, CDN).
- Title (79 characters)
- BlackStack | AI Consulting for Small Businesses: Learn It Once, Run It Yourself
- Description (189 characters)
- BlackStack teaches small businesses to use AI. We find your bottleneck, prescribe the AI workflow and teach you to build and run it yourself. Free intro call, then €1,200 excl. VAT, all in.
- Headings
- 1 H1, 8 H2, 25 H3
- Words on page
- 1,180
- Links
- 32 internal, 13 external
- Structured data
- Organization, WebSite, ProfessionalService, FAQPage
On-page keywords
| Phrase | Type | Mentions |
|---|---|---|
| intro call | Two words | 9 |
| never need | Two words | 2 |
| google meet | Two words | 2 |
| yellow belt lean | Three words | 2 |
| belt lean green | Three words | 2 |
| intro callfropen menuai | Three words | 1 |
| run | Word | 16 |
| intro | Word | 12 |
Tech stack and pricing
Lowest paid plan
$1200 /month
About BlackStack
What is BlackStack?
BlackStack is a Chrome extension for saving, organizing, and reusing your best snippets, replies, and message templates across Gmail, Outlook, LinkedIn, Reddit, and other tabs. Instead of relying on full AI automation, BlackStack helps you keep a curated library of high quality messages that you can quickly paste or trigger when needed. Built for people who send repeat messages but still want control over quality and context, including sales, marketing, legal, customer support, recruting etc.
How much does BlackStack cost?
Paid plans start at $1200 per month, based on the public pricing page.