Toolkit · Technology

The Website and Internet Law Toolkit

47 U.S.C. § 230

Type: Toolkit
Jurisdiction: National
Date: 2026-01-23
Topic: Technology

The law of running a website is not one field but a stack of a dozen overlapping regimes, and this toolkit maps every layer so you know which body of law governs each part of an online business. It walks the stack from formation and domain naming, through the contracts of the web (terms of service, EULAs, and clickwrap), intermediary liability under Section 230, copyright and the DMCA, trademark and domain disputes, privacy and data, advertising and email, accessibility, and the CFAA and scraping, ending with the litigation and evidence problems unique to the internet. Each layer pairs a plain-English statement of the doctrine with its anchor authority and heavy links into UpLaw's deeper articles, guides, and checklists. A running hypothetical, an online marketplace called Thistle Market, threads through every layer to show how the regimes stack on a single business. The toolkit closes with a consolidated gated checklist, a primary-authority list, and a grouped resource library. Use it as a map, not a manual: find your layer, get oriented, then follow the links to the deep dives.

The Website and Internet Law Toolkit

Technology > Internet | Published 23 January 2026 - Updated 25 February 2026 | UpLaw - uplaw.us

There is no such thing as "internet law." There is contract law, copyright law, trademark law, privacy law, and a handful of internet-specific statutes, all stacked on top of one website. This toolkit is the map of that stack.

Keywords: internet law, website law, terms of service, Section 230, DMCA, copyright, trademark, domain disputes, privacy policy, CAN-SPAM, ADA accessibility, CFAA, web scraping, web evidence

How to read this toolkit

Most legal problems in an online business are misfiled. A founder treats a takedown demand as a "copyright problem" when it is really a safe-harbor-eligibility problem; a general counsel treats a scraper as a "trespass problem" when the live question is contract formation; a marketer treats a privacy complaint as a "policy wording problem" when the real exposure is an unhonored data-subject request. The reason these get misfiled is that a single website sits at the intersection of a dozen distinct legal regimes, each with its own statute, its own case law, and its own defenses. The value of thinking in a stack is that it tells you which body of law you are actually in before you start reasoning.

This is a toolkit, not a checklist. It is organized as a resource map. Each layer below does three things: states the governing doctrine in plain English, names the anchor authority you can cite, and points you to the UpLaw article, guide, or checklist that treats the subject in depth. When you have a live question, find your layer, get oriented, and then follow the links to the deep dive. At the end you will find a consolidated gated checklist that collapses every layer into a launch-and-operate to-do list, plus a grouped resource library.

To keep the layers concrete, a single fictional business runs through all of them: Thistle Market, a venture-backed online marketplace where independent makers sell handmade goods to consumers. Thistle hosts seller listings, user reviews and photos, a messaging system, a blog, an email newsletter, and a mobile app. It is small enough to be relatable and complex enough to trip every wire in the stack. Watch how the same company is, simultaneously, a licensor, an intermediary, a data controller, an advertiser, and a potential defendant.

The internet legal stack at a glance

Here is the whole stack in one view. Each layer is a distinct legal regime that attaches to a different part of the site.

Formation, domains, and naming - the entity behind the site, the domain name, and the trademark in the name.
The contracts of the web - terms of service, end-user license agreements (EULAs), and how clickwrap and browsewrap actually form binding agreements.
Section 230 and intermediary liability - whether the site is treated as a publisher of what its users post.
Copyright, the DMCA, and user-generated content - who owns the words, images, and code, and how the notice-and-takedown safe harbor works.
Trademark, TLDs, and domain disputes - protecting the brand and recovering an abusive domain.
Privacy, data, and tracking - what you collect, disclose, and honor about visitors.
Advertising, endorsements, and email - truthful marketing, influencer disclosure, and lawful commercial email.
Accessibility - whether the ADA reaches your website and app.
The CFAA, scraping, and recording/consent - who may access your systems and record interactions.
Internet litigation and web evidence - jurisdiction, and how you prove what a webpage said on a given day.

The layers are not sequential steps; they operate simultaneously the moment the site goes live. But they are separable, and the discipline of separating them is the whole point.

Layer 1 - Formation, domains, and naming the site

Before any of the internet-specific law attaches, an online business is just a business, and it needs the ordinary foundation: an entity that owns the assets and shields the founders, a domain registered to that entity (not to a founder's personal account or a departed developer), and a name that is legally available to use.

The three questions here interlock. The entity should be the registered owner of the domain and the applicant on any trademark, so that title is clean if you sell or raise. The domain should be secured across the obvious top-level domains and defensive misspellings, with registrar-lock and auto-renew turned on. And the name must clear trademark before you spend on branding, because discovering a senior user after launch is the most expensive avoidable mistake in this layer. For the entity and cap-table foundation, The Small Business Legal Toolkit maps the formation, contracts, and compliance basics that sit underneath everything here.

Thistle Market. Thistle incorporates as a Delaware C-corp, registers thistlemarket.com to the corporation, and runs a clearance search before printing a single tote bag. The search turns up a regional florist using "Thistle" for retail services. Whether that is a problem is a distinctiveness-and-confusion question handled at Layer 5, but the point of Layer 1 is that Thistle asked the question before launch, not after a cease-and-desist arrived.

Layer 2 - The contracts of the web: terms, EULAs, and enforceability

Every meaningful interaction on a website is governed by a contract, and the central practical question is not what the terms say but whether they were formed. Courts distinguish clickwrap (the user affirmatively clicks "I agree" next to conspicuous terms) from browsewrap (the terms sit behind a footer link and the site claims mere use is assent). Clickwrap with reasonable notice is routinely enforced; browsewrap is routinely not, because the user never manifested assent. The doctrine is ordinary contract law - offer, acceptance, mutual assent, consideration - applied to an interface. Design determines enforceability: conspicuous terms, an unambiguous assent action, and a record of who agreed to what version and when.

Terms of service typically bundle several distinct instruments: the license to use the site, a user-content license (see Layer 4), acceptable-use rules, disclaimers and limitation of liability, an arbitration clause and class-action waiver, and choice of law and forum. Where the product is software rather than a service, the analogous instrument is a EULA. For how software licenses are structured and negotiated, see Anatomy of a Software License Agreement: A Comprehensive Guide and the plain-English How Software Licensing Works: An Overview.

Thistle Market. Thistle presents its terms as a checkbox at account creation - "I have read and agree to the Terms of Service and Privacy Policy," with both hyperlinked - and logs the acceptance event with a timestamp and the terms version. When a seller later disputes the arbitration clause, Thistle can produce the assent record. That record is the difference between an enforceable agreement and an aspiration.

Layer 3 - Section 230 and intermediary liability

This is the layer that makes the modern internet possible, and the one most often misunderstood. Under 47 U.S.C. § 230, "no provider or user of an interactive computer service shall be treated as the publisher or speaker of any information provided by another information content provider." In plain terms: if a user posts something defamatory, harassing, or otherwise tortious, the platform generally cannot be held liable as though it had said it. Section 230 also contains a "Good Samaritan" provision protecting a platform's good-faith moderation choices, so removing or restricting content does not forfeit the immunity.

Section 230 is broad but not total. Its two most important limits are that it does not immunize federal criminal liability and, critically for any commerce site, it does not apply to intellectual property claims. That IP carve-out is why copyright and trademark exposure runs through the DMCA and Lanham Act, not Section 230, and it is the seam where platforms get hurt. The doctrinal foundation for the internet's speech-and-liability architecture traces to Reno v. ACLU, 521 U.S. 844 (1997), which struck down the Communications Decency Act's speech restrictions while leaving § 230's immunity standing. For the field-level view of how these regimes fit together on a user-facing platform, see Social Media Law: A Field Guide to the Legal Stack; for the carve-out that most affects a marketplace, see Section 230, the IP Carve-Out, and Platform Liability for User-Generated Infringement.

Thistle Market. A seller posts a defamatory review accusing a competitor of fraud. Section 230 shields Thistle from a defamation suit over that review - it is the seller's speech, not Thistle's. But when the same seller lists counterfeit goods, § 230 offers nothing, because trademark and copyright claims fall outside the immunity. Thistle's protection there depends entirely on the next layer.

Layer 4 - Copyright, the DMCA, and user-generated content

Copyright touches an online business twice. First, the site itself - its text, photographs, layout, and code - is a set of copyrightable works the business should own and can register. Second, users upload copyrighted material, which creates infringement exposure the business manages through the DMCA safe harbor.

On the ownership side, register early. Registration is a prerequisite to suit and, if made before infringement or within the statutory window, unlocks statutory damages and attorney's fees. Websites present special registration mechanics because they combine text, images, and code and change constantly. See Registering Copyright in Websites and Online Content for the doctrine and Copyright Registration for a Website: A Practical Checklist for the step-by-step.

On the user-content side, the DMCA, 17 U.S.C. § 512, offers online service providers a safe harbor from liability for infringement their users commit - if the provider designates a registered agent, adopts and reasonably implements a repeat-infringer policy, lacks actual or red-flag knowledge, does not profit from infringement it can control, and expeditiously removes material on a proper notice. This is notice-and-takedown, and it is a compliance program, not a document. For how a provider actually earns the protection, see The DMCA Safe Harbors: How Online Service Providers Earn Protection From User Infringement, and to operationalize it, Staying Inside the DMCA Safe Harbor: A Compliance Checklist. Note that § 512 is only half of the DMCA; § 1201's anti-circumvention rules govern technical protection measures, a separate concern for sites that use DRM.

Thistle Market. Thistle registers a DMCA agent with the Copyright Office, publishes a takedown address, and codes a repeat-infringer counter into its seller-account system. When a photographer sends a notice that a seller used her image, Thistle removes the listing, notifies the seller of the counter-notice path, and logs the strike. Because it did all of this, the photographer's infringement claim runs against the seller, not against Thistle.

Layer 5 - Trademark, TLDs, and domain disputes

The brand layer has two faces: protecting your own mark and dealing with others' abuse of it. A domain name is not a trademark - it is a registration in the DNS - but trademark rights govern who may use a name commercially, and a strong federal registration is the leverage behind most domain recoveries. For how domain names and trademark rights interact across the expanding universe of top-level domains, see Top-Level Domains and Trademark Rights: An Overview.

When a bad actor registers your brand as a domain to sell it back to you or divert traffic, you have two primary weapons: a UDRP proceeding (the ICANN administrative process, fast and cheap, remedy limited to transfer or cancellation) or a federal suit under the Anticybersquatting Consumer Protection Act (slower, costlier, but with damages and broader reach). Choosing between them is a strategy decision covered in UDRP vs. Federal Lawsuit: Picking the Right Weapon for Domain Disputes, and the UDRP mechanics are laid out in Recovering a Domain From a Cybersquatter: A UDRP Complaint Field Guide.

Thistle Market. After launch, someone registers thistle-market.net and points it at a lookalike storefront harvesting card numbers. Thistle, holding a federal registration, files a UDRP complaint: the domain is confusingly similar to its mark, the registrant has no legitimate interest, and the phishing use is bad faith. Transfer follows in weeks - far faster than litigation, and exactly the right tool for a clear-cut cybersquatting case.

Layer 6 - Privacy, data, and tracking

The privacy layer is a patchwork, and there is no single "internet privacy law" in the United States. Instead a site is governed by a mix of sector-specific federal statutes, a growing roster of comprehensive state laws (California's CCPA/CPRA foremost), the EU's GDPR when it reaches EU residents, the FTC's authority over unfair or deceptive practices, and the site's own privacy policy - which is itself an enforceable promise. The operating rule of thumb: say what you do, do what you say, and honor the rights the applicable laws grant.

Two documents anchor compliance. The privacy policy is the public-facing promise; drafting it accurately (not aspirationally) is the single most effective way to avoid a deceptive-practices problem. See Drafting a Privacy Policy: A Practical Checklist. The data-subject request process is the operational backbone - when a consumer asks to access or delete their data, the clock starts and the response is regulated. See Responding to a Data Subject Access Request: A Practical Checklist. For the program-level view of building governance across the patchwork, see The Privacy and Data Protection Toolkit: Building and Operating a Compliance Program. If the business ships a mobile app, the app store adds its own privacy-disclosure and SDK obligations - mapped in Mobile App Privacy Law: A Compliance Map for Founders and Counsel.

Thistle Market. Thistle collects buyer addresses, payment tokens, browsing behavior, and seller tax IDs. Its privacy policy describes each category, its cookie banner offers a genuine opt-out for analytics, and its support team has a documented 45-day workflow for California deletion requests. When a buyer files a request to delete, Thistle honors it and logs the disposition - because an ignored request, not a collected byte, is what draws the regulator.

Layer 7 - Advertising, endorsements, and email

Everything a site says to sell is advertising, and advertising must be truthful and substantiated. The FTC polices unfair and deceptive practices; the Lanham Act lets competitors sue over false claims. Three sub-areas bite online businesses hardest: claim substantiation (you must have support for objective claims before you make them), endorsements and reviews (influencer relationships must be disclosed, and fake or incentivized reviews are actionable), and dark patterns (interface tricks that manufacture consent or obstruct cancellation). The full landscape lives in The Advertising and Marketing Law Toolkit.

Email has its own federal statute. The CAN-SPAM Act, 15 U.S.C. § 7701 et seq., governs commercial email: no deceptive headers or subject lines, a clear identification that the message is an ad, a valid physical postal address, and a working opt-out honored within ten business days. It applies per-message, and liability can attach to the company whose product is promoted, not just the sender. For the full treatment see CAN-SPAM Compliance for Commercial Email: A Comprehensive Guide for Businesses and Marketers.

Thistle Market. Thistle's weekly newsletter promotes featured makers. Its emails carry a real return address, a one-click unsubscribe that actually works, and the company's mailing address in the footer. When Thistle pays a lifestyle influencer to post about a seller, it requires a clear "#ad" disclosure - because an undisclosed paid endorsement is the FTC's easiest case to make.

Layer 8 - Accessibility (ADA)

A growing body of litigation treats websites and apps as subject to the Americans with Disabilities Act, 42 U.S.C. § 12181 et seq., which bars discrimination in places of "public accommodation." Courts split on whether a website is itself a public accommodation or must have a nexus to a physical store, but the practical exposure is real and rising: thousands of demand letters and suits each year allege that sites are unusable with screen readers and other assistive technology. The de facto compliance standard the plaintiffs' bar and settlements point to is the Web Content Accessibility Guidelines (WCAG). The safe posture is to build to a recognized WCAG conformance level, document the effort, and maintain an accessibility statement with a remediation contact.

Thistle Market. Thistle's product photos lacked alt text and its checkout could not be completed by keyboard alone. A demand letter arrives citing the ADA. Because accessibility is cheaper to build than to litigate, Thistle remediates to WCAG 2.1 AA, publishes an accessibility statement, and folds conformance into its design system so new features do not regress.

Layer 9 - The CFAA, scraping, and recording/consent

This layer governs who may access your systems and record your interactions. The Computer Fraud and Abuse Act, 18 U.S.C. § 1030, criminalizes accessing a computer "without authorization" or "exceeding authorized access." For years the open question was whether violating a website's terms - by scraping, say - was itself a CFAA violation. The Supreme Court narrowed the statute in Van Buren v. United States, 593 U.S. 374 (2021), holding that "exceeds authorized access" reaches only obtaining information one is not entitled to obtain at all, not misusing access one legitimately has. The upshot for scraping is that data a site makes publicly available is hard to fence with the CFAA alone; the live battlegrounds are contract (terms of use) and copyright instead. The collision of all three is mapped in Web Scraping and the Law After hiQ v. LinkedIn: Where the CFAA, Contract, and Copyright Collide.

The recording and consent sub-layer matters because online businesses increasingly record: session-replay tools that capture keystrokes and mouse movement, chat transcripts, and support calls. Wiretap and two-party-consent statutes - built for phone calls - are being applied to these tools, generating a wave of litigation. The doctrine of who may record whom, and when consent is required, is covered in Cameras, Consent, and the Law of Recording People.

Thistle Market. A competitor scrapes Thistle's public listings to seed a rival catalog. Post-Van Buren, Thistle's cleanest theories are breach of its terms of use (if formation is solid - back to Layer 2) and copyright in its original listing text and photographs (Layer 4), not the CFAA. Separately, Thistle deploys a session-replay analytics tool; counsel flags that in two-party-consent states this may require disclosure and consent, so Thistle adds a banner and reviews the vendor's data handling.

Layer 10 - Internet litigation and web evidence

When disputes reach court, the internet creates two recurring problems: jurisdiction (a website is visible everywhere, but that does not make its operator suable everywhere - personal jurisdiction still requires purposeful availment of the forum) and evidence (proving what a webpage, listing, or post said on a specific date). The evidence problem is acute because web content is ephemeral and easy to alter. A screenshot is not self-authenticating; you need testimony or metadata establishing that it fairly and accurately depicts what appeared, and often the Internet Archive, a records custodian, or a forensic capture. The practitioner's treatment is Authenticating Website Screenshots and Web Evidence in Federal Court: A Practitioner's Guide.

Thistle Market. In the counterfeiting dispute from Layer 4, Thistle needs to prove exactly what the infringing listing showed before it was removed. Because its DMCA workflow captured a timestamped archive of the listing at takedown, it can authenticate the evidence through the employee who made the capture, rather than scrambling to reconstruct a deleted page. Good operational hygiene at Layer 4 pays off as admissible proof at Layer 10.

The stack as a working checklist

Collapse the ten layers into a launch-and-operate to-do list. Gate each item behind the layer it belongs to; complete a layer before relying on it.

Formation and naming (Layer 1)

[ ] Entity formed; domain and marks owned by the entity, not individuals.
[ ] Domain secured across key TLDs, with registrar-lock and auto-renew on.
[ ] Name cleared for trademark before branding spend.

Contracts of the web (Layer 2)

[ ] Terms of service presented as clickwrap with conspicuous notice and logged assent.
[ ] Terms include acceptable use, disclaimers, limitation of liability, arbitration, and choice of law.
[ ] User-content license and (for software) a EULA in place.

Intermediary liability (Layer 3)

[ ] Identified where the site hosts third-party content and confirmed Section 230 coverage - and its IP carve-out.
[ ] Good-faith moderation policy documented.

Copyright and DMCA (Layer 4)

[ ] Site content registered with the Copyright Office.
[ ] DMCA agent registered; notice-and-takedown and repeat-infringer policy implemented and logged.

Trademark and domains (Layer 5)

[ ] Federal trademark application filed for the brand.
[ ] Domain-monitoring in place; UDRP/ACPA playbook ready for cybersquatting.

Privacy and data (Layer 6)

[ ] Accurate privacy policy published; cookie/tracking consent implemented where required.
[ ] Data-subject request workflow with tracked deadlines.

Advertising and email (Layer 7)

[ ] Marketing claims substantiated; endorsements disclosed; reviews genuine.
[ ] Commercial email meets CAN-SPAM (headers, identification, address, working opt-out).

Accessibility (Layer 8)

[ ] Site and app built to a recognized WCAG level; accessibility statement published.

CFAA, scraping, recording (Layer 9)

[ ] Anti-scraping posture rests on enforceable terms and copyright, not the CFAA alone.
[ ] Session-replay, chat, and call recording reviewed against consent statutes.

Litigation and evidence (Layer 10)

[ ] Jurisdiction and forum considered in terms and operations.
[ ] Timestamped capture practices in place so web evidence can be authenticated later.

For the launch-day version of these gates, see the sibling Launching a Website: A Legal Compliance Checklist; for the app equivalent, From Feature-Complete to Live: A Legal Launch Guide for Mobile Apps.

Primary Authority

47 U.S.C. § 230 - intermediary immunity for third-party content; Good Samaritan moderation provision; exclusions for federal criminal law and intellectual property.
Digital Millennium Copyright Act, 17 U.S.C. §§ 512, 1201 - online service provider safe harbors and notice-and-takedown (§ 512); anti-circumvention of technical protection measures (§ 1201).
Computer Fraud and Abuse Act, 18 U.S.C. § 1030 - unauthorized access and exceeding authorized access; Van Buren v. United States, 593 U.S. 374 (2021) (narrowing "exceeds authorized access").
CAN-SPAM Act, 15 U.S.C. § 7701 et seq. - commercial-email requirements: accurate headers, ad identification, physical address, and honored opt-out.
Americans with Disabilities Act, 42 U.S.C. § 12181 et seq. - prohibition on discrimination in places of public accommodation, as applied to websites and apps.
Lanham Act, 15 U.S.C. § 1125 - false advertising (§ 43(a)) and cybersquatting under the ACPA (§ 43(d)).
Reno v. ACLU, 521 U.S. 844 (1997) - First Amendment limits on regulating internet speech; foundational to the internet's speech-and-liability architecture.

Secondary Sources

Nimmer on Copyright (DMCA safe harbors and § 512 mechanics).
McCarthy on Trademarks and Unfair Competition (domains, cybersquatting, and the ACPA/UDRP).
Restatement (Second) of Contracts (offer, acceptance, and assent principles underlying clickwrap enforceability).
FTC guidance on endorsements, "dark patterns," and unfair or deceptive online practices.

Related UpLaw Resources

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This toolkit is general legal information from UpLaw (uplaw.us), not legal advice, and does not create an attorney-client relationship. Statutes, rules, and fees change; verify current requirements and consult qualified counsel before acting.