Three similar words, three very different networks. Here is who each one is for, what it does well and how a small or mid-size business can use them together.
| Internet | Intranet | Extranet | |
|---|---|---|---|
| Who can access it | Anyone with a connection | Employees only (and sometimes approved contractors) | Selected outside partners, plus your own staff |
| Typical login | None for public pages | Company account or single sign-on | Partner account with limited permissions |
| Main purpose | Public information, marketing, sales, research | Internal communication, documents, policies, workflows | Sharing specific data and processes with partners |
| Example content | Your website, online store, social profiles | Employee handbook, announcements, shift updates, forms | Order portal, shared project files, supplier schedules |
| Who controls the content | Anyone can publish their own | Your company | Your company, sometimes shared with partners |
| Biggest risk | Exposure to everyone | Becoming outdated and unused | Giving a partner too much access |
The internet is the worldwide network of connected networks that uses shared standards so computers anywhere can exchange data. Your public website, email, cloud apps and search engines all run on it. For a business, the internet is where customers find you and where most software now lives.
The important point for this comparison is that the internet itself is public infrastructure. Intranets and extranets usually also run over the internet today, but they add a locked door: login, permissions and encryption decide who gets in. In that sense, “intranet” and “extranet” describe who is allowed to use a system more than the cables underneath it.
An intranet is a private space for your own people. In the past it meant servers inside the office that could only be reached from the office network. Today most intranets are cloud-based and reached through a browser or mobile app, but they are still private: an employee has to sign in, and outsiders cannot see the content.
Common uses of an intranet include:
For businesses with deskless or shift-based staff, a mobile-first intranet matters most, because many employees never sit at a computer. Our guide to choosing an intranet walks through the selection process, and the employee intranet use case shows how eztime approaches it.
An extranet takes part of your private system and opens it, carefully, to people outside the company. Each outside user gets an account with limited permissions, so a supplier might see purchase orders and delivery schedules but never payroll or HR files.
Typical extranet scenarios include:
A client portal, a supplier portal and a partner portal are all forms of extranet, even if no one calls them that.
| Factor | Intranet | Extranet |
|---|---|---|
| Audience | Your employees | Outside organizations and individuals |
| Trust level | High; users are on your payroll and bound by your policies | Lower; users follow their own company’s rules |
| Permissions | Broad, with some restricted areas (HR, finance) | Narrow by default; each partner sees only its own data |
| Content | Culture, policies, internal news, internal tools | Transactions, shared files, joint projects |
| Agreements | Covered by employment policies | Usually backed by contracts, NDAs or data-sharing terms |
| Offboarding trigger | Employee leaves | Contract ends or partner contact changes jobs |
Many organizations run both, and some platforms let you create guest or partner spaces inside an intranet. When you do that, treat the partner area as an extranet and apply extranet-level controls to it.
No single checklist fits every business, and security requirements vary by industry. These are common good practices to discuss with your IT provider:
If you handle regulated data, such as health information in a healthcare business, check the specific legal and contractual rules that apply before sharing anything through a portal.
Use these questions to decide:
A typical small business path is a public website first, then an intranet once the team grows past the point where everyone can be told everything in person, then a partner portal when outside relationships become complex.
| Industry | Internet | Intranet | Extranet |
|---|---|---|---|
| Restaurants | Menu, online ordering, reservations | Shift updates, recipes, food safety procedures | Supplier ordering and delivery schedules |
| Construction | Portfolio and bid requests | Safety procedures, site updates, toolbox talks | Subcontractor and client project portals |
| Healthcare | Patient-facing information and booking | Clinical policies, schedules, training records | Referral partner or vendor portals |
| Retail | Online store and store locator | Planograms, promotions, store announcements | Vendor portals for orders and invoices |
| Field service | Service pages and booking | Job procedures and safety checklists | Client portals for work orders and reports |
See how eztime supports teams in restaurants and other shift-based industries.
An intranet is one channel among several. It works best as the “single source of truth” that other channels point to: a team chat message or text alert says what changed, and the intranet holds the details. Our guides to internal communication strategy and communication channels at work explain how to decide which message goes where. eztime’s announcements and company feed features are built for this kind of internal communication with shift-based teams.
Usually, yes. Most modern intranets are cloud services reached over the internet, but they require a login, so only authorized employees can see the content. Some organizations still run on-premises intranets that can only be reached from the office network or a VPN.
A client portal is a type of extranet. “Extranet” is the broader term for any private system you open to selected outside users, including clients, suppliers, contractors and franchisees.
Some platforms support both by letting you create guest or partner spaces. If you do this, make sure partner permissions are strictly limited and that internal content is never visible to external accounts by default.
Not at first. Once a team grows, works multiple shifts or locations, or keeps asking the same questions, a simple intranet or employee app usually saves time and reduces missed messages.
A shared drive stores files. An intranet organizes information for people, with news, search, a directory, announcements and often forms and workflows. Many intranets link to or include file storage.
Usually HR, operations or internal communications, with section owners in each department. IT typically handles access, security and integrations.
EZTime tags hours by job, client and role and shows real-time labor costing on the schedule, so estimates can be checked against actual hours.