Block's tech stack
What does Block use?
Block (blockcrs.cz) uses at least 13 tools we can see from public records, including Microsoft 365 for email and documents, D&B Visitor Intelligence for sales, Google Analytics for analytics and OpenAI for AI. Last checked .
- Industry
- Construction
- Size
- 201–1,000 employees
- Based in
- Valašské Meziříčí, Czechia
- Founded
- 1991
- Company page
- Tools found
- 13
- Categories
- 8
- Layers
- 4 of 5
- Changes seen
- 2
Block'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.
Application
6 tools, what the product is built with
Data & Observability
1 tool, what they measure and store
Analytics
Go-to-market
3 tools, how they find and keep customers
Ads & Pixels
Sales & CRM
Company Ops
3 tools, what the team runs on day to day
Workspace
Collaboration
What changed at Block
Recent starts and stops
- StartedFont Awesome
- StartedVimeo
Companies like Block also use
Tools common among companies with a similar stack that we haven't found at Block.
Companies with a stack like Block's
Ranked by shared tools, with rare tools counting more.
Valicor Environmental ServicesEnvironmental Services · 201–1,000 people8in common
Information Technology Engineering LLCStaffing and Recruiting · 201–1,000 people6in common
Symetri Addnode GroupSoftware · 201–1,000 people8in common
McPherson OilOil & Gas · 201–1,000 people9in common
QuestMarkFacilities Services · 201–1,000 people8in common
AutoEntryIT Services · 201–1,000 people5in common
ThumbtackSoftware · 1,001–5,000 people5in common
WEX CardFinancial Services · 11–50 people4in common
More Construction companies
Other Construction companies we've checked.
Block tech stack FAQ
What tools does Block use?
As of October 2026, runsonwhat has found 13 tools at Block (blockcrs.cz) in public records. Application: jQuery, Google Fonts and Font Awesome. Data & Observability: Google Analytics. Go-to-market: Google Ads, LiveRamp and D&B Visitor Intelligence. Company Ops: Microsoft 365, Apple Business and Autodesk. Last checked October 22, 2026.
What sales tools does Block use?
The sales tools runsonwhat has found at Block are D&B Visitor Intelligence (October 2026); no CRM shows up in Block's public records. runsonwhat found D&B Visitor Intelligence through D&B Visitor Intelligence code on blockcrs.cz. D&B Visitor Intelligence is used by 362 companies runsonwhat tracks.
What email provider does Block use?
Block uses Microsoft 365 for email and office software, alongside Apple Business, according to runsonwhat (October 2026). runsonwhat found Microsoft 365 through email records that authorize Microsoft 365 and code on blockcrs.cz. Microsoft 365 is used by 713,661 companies runsonwhat tracks.
What analytics tools does Block use?
Block uses Google Analytics for analytics, according to runsonwhat (October 2026). runsonwhat found Google Analytics through Google Analytics code on blockcrs.cz. Google Analytics is used by 885,990 companies runsonwhat tracks.
Does Block use jQuery?
Yes. runsonwhat found jQuery at Block through jQuery code on blockcrs.cz. jQuery is a Frontend tool used by 919,203 companies runsonwhat tracks.
Does Block use AI tools?
Yes. runsonwhat has found OpenAI at Block; OpenAI, for example, through a DNS verification record for OpenAI. AI services called only from servers leave no public trace, so Block may use more AI tools than these.
Has Block changed tools recently?
Yes. On runsonwhat's rechecks, Block started using Font Awesome and Vimeo (latest on October 22, 2026). A change counts only between two checks of blockcrs.cz done the same way.
Which companies have a tech stack similar to Block's?
The companies with the stacks most like Block's are Valicor Environmental Services, Information Technology Engineering, Symetri Addnode Group and McPherson Oil, according to runsonwhat (October 2026). Each shares 6 to 9 tools with Block, and rare tools count for more than common ones like Google Workspace, so the match reflects real stack choices.
How does runsonwhat know what Block uses?
runsonwhat reads public records only. Of the 13 tools at Block, 9 were found through code on blockcrs.cz, 3 through DNS records and 1 through email records. A tool is listed only when a direct record backs it up; DNS is rechecked weekly and blockcrs.cz 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.