G Pen's tech stack
What does G Pen use?
G Pen (gpen.com) uses at least 36 tools we can see from public records, including Vercel for hosting, Google Workspace for email and documents, HubSpot for sales and Google Analytics for analytics. Last checked .
- Industry
- Consumer Electronics
- Size
- 11–50 employees
- Based in
- St Louis, United States
- Founded
- 2012
- Company page
- Tools found
- 36
- Categories
- 15
- Oldest proven tool
- Feb 2020
- Last checked
- Oct 2026
G Pen's stack, layer by layer
Each tool links to the other companies we've found using it. The label says what kind of public trace gave it away.
Edge & Hosting
5 tools, where the bytes are served from
Application
7 tools, what the product is built with
Payments & Billing
Data & Observability
4 tools, what they measure and store
Go-to-market
17 tools, how they find and keep customers
Company Ops
3 tools, what the team runs on day to day
What changed at G Pen
Using since
Dates come from the first certificate of the subdomain that points at the tool.
Companies like G Pen also use
Tools common among companies with a similar stack that we haven't found at G Pen.
Companies with a stack like G Pen's
Ranked by shared tools, with rare tools counting more.
Stündenglass: Gravity Hookahs and InfusersConsumer Goods · 11–50 people24in common
420 ScienceRetail · 11–50 people18in common
Live TintedConsumer Goods · 11–50 people18in common
Marley's MonstersRetail · 51–200 people10in common
Njoie. Live with JoieHealth, Wellness and Fitness · 51–200 people12in common
Ledge LoungerFurniture · 51–200 people21in common
GAT SPORTHealth, Wellness and Fitness · 11–50 people14in common
MysterConsumer Goods · 11–50 people15in common
G Pen tech stack FAQ
What tools does G Pen use?
As of November 2026, runsonwhat has found 36 tools at G Pen (gpen.com) in public records. Edge & Hosting: Cloudflare, GoDaddy and Vercel. Application: jQuery, Google Fonts and Font Awesome. Data & Observability: Google Analytics, Google Tag Manager and Sentry. Go-to-market: WordPress, Meta Pixel and HubSpot. Company Ops: Google Workspace, SendGrid and NetSuite. Last checked October 27, 2026.
What cloud does G Pen run on?
G Pen uses Vercel for hosting and cloud infrastructure, alongside GitHub Pages and Heroku, according to runsonwhat (November 2026). runsonwhat found Vercel through a subdomain that points at Vercel. Vercel is used by 51,026 companies runsonwhat tracks.
What CRM does G Pen use?
G Pen uses HubSpot for its CRM, alongside Salesforce, according to runsonwhat (November 2026). runsonwhat found HubSpot through HubSpot code on gpen.com. HubSpot is used by 96,195 companies runsonwhat tracks.
What email provider does G Pen use?
G Pen uses Google Workspace for email and office software, according to runsonwhat (November 2026). runsonwhat found Google Workspace through email records that authorize Google Workspace and code on gpen.com. Google Workspace is used by 411,035 companies runsonwhat tracks.
What payment provider does G Pen use?
G Pen uses Sezzle for payments and billing, according to runsonwhat (November 2026). runsonwhat found Sezzle through Sezzle code on gpen.com. Sezzle is used by 394 companies runsonwhat tracks.
What analytics tools does G Pen use?
G Pen uses Google Analytics for analytics, alongside Google Tag Manager and Triple Whale, according to runsonwhat (November 2026). runsonwhat found Google Analytics through Google Analytics code on gpen.com. Google Analytics is used by 906,383 companies runsonwhat tracks.
How long has G Pen used Heroku?
G Pen has used Heroku since at least February 2020, going by the first public certificate of the gpen.com subdomain that points at Heroku. Other long-running tools at G Pen include GitHub Pages (since September 2026).
Does G Pen use jQuery?
Yes. runsonwhat found jQuery at G Pen through jQuery code on gpen.com. jQuery is a Frontend tool used by 930,216 companies runsonwhat tracks.
Which companies have a tech stack similar to G Pen's?
The companies with the stacks most like G Pen's are Stündenglass: Gravity Hookahs and Infusers, 420 Science, Live Tinted and Marley's Monsters, according to runsonwhat (November 2026). Each shares 10 to 24 tools with G Pen, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what G Pen uses?
runsonwhat reads public records only. Of the 36 tools at G Pen, 25 were found through code on gpen.com, 4 through email records, 4 through subdomains that point at the vendor and 3 through DNS records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and gpen.com about monthly.
We read public traces only: DNS and email records, certificate logs, website code and published subprocessor lists. A tool is listed when a direct record backs it up, and dropped when a recheck no longer finds it. Is this your company? See how to opt out.