LEGAL
Terms of Service
Last updated: 27 July 2026
Please read these Terms of Service carefully before using the Lumorrow platform, Lumorrow Verify, or our websites. By accessing or using any part of our services, you agree to be bound by these terms.
These Terms apply to lumorrow.com, to verify.lumorrow.com, and to every other Lumorrow subdomain and service that links to them, unless a different agreement expressly says otherwise. Lumorrow operates two distinct offerings: the ad exchange and Lumorrow Verify. Some sections below apply to only one of them, and each such section says which.
1. Definitions
- "Lumorrow," "we," "our," "us" means Lumorrow Ltd (company number 17237950, registered in England and Wales) and its affiliates.
- "Services" means the Lumorrow ad exchange platform, Lumorrow Verify, our API endpoints, reporting dashboards, websites (including lumorrow.com and verify.lumorrow.com), and all related tools and documentation.
- "Verify" or "Lumorrow Verify" means the supply-chain transparency service made available at verify.lumorrow.com, including its domain lookup, SupplyChain validator, monitoring and alerting features, reports, exports, and API.
- "Source Files" means the
ads.txt,app-ads.txt, andsellers.jsonfiles, and equivalent authorisation files, that third parties publish on their own domains for public retrieval. - "Verify Data" means the data Lumorrow compiles from Source Files and makes available through Verify, including the reconciliation results, change records, and any reports, exports, or API responses derived from them.
- "Subscriber" means any entity that holds a Verify account, whether on a free or paid plan.
- "Publisher" means any entity that has an approved account to supply advertising inventory through the Services.
- "Demand Partner" means any entity that has an approved account to purchase advertising inventory through the Services, including DSPs, ad networks, agencies, and trading desks.
- "MSA" or "Master Services Agreement" means the master services agreement governing the advertising services between you and Lumorrow — whether on Lumorrow's standard form or a mutually executed agreement on your own paper — into which Insertion Orders are incorporated.
- "Insertion Order" or "IO" means an order-level document executed or electronically accepted under the MSA that identifies each party's role (Demand or Publisher), pricing, inventory, flight dates, and any KPIs.
- "Bid Request" means the structured data object transmitted by Lumorrow to a Demand Partner describing a specific impression opportunity.
- "Content" means any advertisement, creative, data, or material submitted through or processed by the Services.
2. Acceptance of terms
By accessing the Services, you confirm that: (a) you have read, understood, and agree to these Terms; (b) you have authority to bind the organisation you represent; and (c) your organisation meets the eligibility requirements set out in Section 4. If you do not agree, you must not use the Services.
These Terms govern your use of this website and any access to the Services not covered by a signed Master Services Agreement. Where you have entered into an MSA with Lumorrow, that MSA (together with any Insertion Order executed under it) is the governing contract for the advertising services. In the event of a conflict, the order of precedence is: (1) the MSA and its Insertion Orders; (2) these Terms of Service; (3) any other website policy.
Lumorrow Verify is supplied on a self-serve basis and does not require an MSA. Unless you have signed a separate written agreement covering Verify, these Terms are the entire governing contract for your use of it, and the MSA precedence above does not apply.
3. Description of services
3.1 The ad exchange
Lumorrow operates an AI-native programmatic ad exchange. We connect Publishers with Demand Partners through real-time auctions. Our intelligence layer processes bid requests before each auction to optimise floor prices, predict fill, and monitor for invalid traffic — all within the millisecond window of a programmatic transaction.
3.2 Lumorrow Verify
Lumorrow Verify is a supply-chain transparency service. It retrieves Source Files that third parties publish at well-known public locations on their own domains, and reconciles the declarations in those files against one another — so that a publisher's declared sellers can be compared with what those sellers independently declare about themselves.
Verify makes the following available without an account: looking up an individual domain, and validating a SupplyChain object. Paid plans additionally provide continuous monitoring of selected domains, change alerts, the per-line report, CSV export, and API access.
Crawl cadence is the same on every plan, including the free plan. Plans determine how many domains you may monitor and how much data you may retrieve — not how current that data is. As at the date of these Terms, sellers.json files are re-checked daily; an ads.txt file that a Subscriber is monitoring is re-checked daily, and one that nobody is monitoring is re-checked weekly. Lumorrow stores the current version of each Source File together with a record of what changed and when.
Verify is an observational tool. It reports what independently published files do and do not say about each other. It does not audit, certify, endorse, or accredit any party, and Lumorrow is not a party to the commercial relationships that Source Files describe.
3.3 Changes to the Services
We reserve the right to modify, suspend, or discontinue any aspect of the Services at any time with reasonable notice, except where suspension is required immediately for legal, security, or compliance reasons. Crawl cadence, plan limits, and rate allowances may change; where a change materially reduces a paid plan's benefits we will give at least 30 days' notice.
4. Accounts and eligibility
The Services are offered solely for business and professional use. By opening an account or subscribing to a paid plan, you confirm that you are acting in the course of a business, trade, or profession and not as a consumer.
Verify's domain lookup and SupplyChain validator may be used without an account. Where you use Verify without an account, Sections 7, 8, 12, 13, and 14 still apply to that use.
- You must be at least 18 years old and have legal authority to enter into contracts on behalf of your organisation.
- Exchange accounts are subject to Lumorrow's approval process. We may decline or revoke access at our discretion.
- Verify accounts are self-serve and are created without prior approval. We may still suspend or close a Verify account under Section 15.
- You are responsible for maintaining the security of your account credentials and for all activity that occurs under your account.
- You must notify us immediately at [email protected] if you suspect unauthorised access to your account.
- You may not share, transfer, or resell account access without our prior written consent.
5. Publisher obligations
Publishers using the Services must:
- Accurately represent all inventory, domain names, app names, and traffic sources. Domain spoofing, app spoofing, or misrepresentation of any kind is strictly prohibited.
- Maintain lawful and accurate authorisation signals consistent with IAB standards (including sellers.json entries and SupplyChain objects on all bid requests).
- Obtain and pass valid end-user consent in compliance with applicable privacy law, including the UK GDPR, EU GDPR, PECR, and CCPA/CPRA, where required for interest-based advertising.
- Pass IAB TCF v2.2 consent strings and/or GPP strings correctly on all applicable bid requests.
- Not monetise content that is illegal, harmful, deceptive, or violates Lumorrow's content policies (available on request).
- Not artificially inflate impressions, clicks, or other engagement metrics.
- Promptly implement any technical or compliance changes reasonably required by Lumorrow with not less than 5 business days' notice, except where urgency requires immediate action.
6. Demand partner obligations
Demand Partners using the Services must:
- Only submit bids for campaigns that comply with applicable law and advertising standards, including IAB guidelines and local advertising regulations.
- Not submit misleading, deceptive, or malicious creative. All creative must function as displayed in preview and must not redirect users to harmful destinations.
- Comply with GDPR, ePrivacy, CCPA/CPRA, and all other applicable privacy laws when processing data received via Bid Requests.
- Only use Bid Request data for the purpose of evaluating and responding to the specific bid opportunity. Bid Request data may not be used to build user profiles or retarget users outside of the transaction for which it was received, except as permitted by applicable law and user consent.
- Maintain, and upon request provide evidence of, a valid legal basis for any personal data processing performed on Bid Request signals.
- Not engage in bid shading, bid jamming, or other practices designed to distort auction outcomes in ways not sanctioned by Lumorrow.
7. Lumorrow Verify — service terms
This Section applies to all use of Verify, with or without an account. Where it conflicts with another Section, this Section prevails for Verify.
7.1 Nature and provenance of Verify Data
- Verify Data is derived from Source Files published by third parties. Lumorrow does not author, control, verify the truth of, or accept responsibility for the contents of any Source File.
- A reconciliation result describes only the relationship between two published declarations at the time each was retrieved. Source Files change without notice, and a result may cease to be current at any time.
- A discrepancy is not an allegation of wrongdoing. Files fall out of alignment for many ordinary reasons, including administrative delay, staff turnover, and stale entries. Verify Data is not evidence of fraud, misrepresentation, or breach by any party, and must not be presented as such.
- You are responsible for your own conclusions. Any decision you take about a counterparty, a supply path, or a bid — including declining, discounting, or terminating a relationship — is yours alone.
7.2 Your licence to use Verify Data
Subject to these Terms and, on paid plans, to payment of the applicable fees, Lumorrow grants you a limited, non-exclusive, non-transferable, revocable licence to access Verify Data and to use it for your own internal business purposes. That includes analysing it internally and citing specific findings to a counterparty in the ordinary course of resolving your own supply-chain queries.
Except as expressly permitted above, you may not:
- resell, sublicense, syndicate, or otherwise commercially redistribute Verify Data, in whole or in part;
- systematically extract, copy, or accumulate Verify Data so as to reconstitute or approximate the underlying dataset, whether by scraping the interface, exceeding your API allowance, or aggregating output over time;
- use Verify Data, or any output of the Services, to build, train, or improve a competing product or dataset;
- publish Verify Data in a form that identifies a named third party as non-compliant, fraudulent, or otherwise at fault; or
- remove or obscure any attribution, watermark, or timestamp accompanying a report or export.
7.3 Accounts, allowances, and API access
- Dashboard and API usage are subject to allowances that vary by plan. We may apply rate limiting, throttling, or temporary suspension where usage exceeds your allowance or threatens service stability.
- API credentials are confidential, are issued for your use only, and must not be shared, embedded in a client-side application, or exposed publicly. You are responsible for all activity carried out with your credentials.
- You may not create multiple accounts, or use automation, to circumvent plan limits, allowances, or the free tier.
7.4 If a Source File is yours
Verify retrieves files that you have chosen to publish for public retrieval, and reports what they say. If you believe a record we hold about your domain is inaccurate — for example because it reflects a retrieval error rather than the file you published — contact [email protected] and we will investigate and correct any error on our side. Where a record accurately reflects what your file said when retrieved, we are not obliged to remove it. Where a Source File contains personal data, the rights described in our Privacy Policy apply.
8. Acceptable use and prohibited conduct
You may not use the Services to:
- Generate, facilitate, or knowingly accept invalid traffic (IVT), including bot traffic, click farms, ad stacking, pixel stuffing, or domain masking.
- Attempt to reverse-engineer, decompile, or extract proprietary algorithms, models, or data from the platform.
- Probe, scan, or test the platform's security or infrastructure without prior written authorisation.
- Circumvent or interfere with rate limits, access controls, or other technical measures.
- Transmit malware, spyware, or any code designed to harm the platform or its participants.
- Impose an unreasonable load on the Services, including by automated querying beyond your allowance.
- Misrepresent Verify Data, including by presenting a reconciliation result as a finding of fraud or as a Lumorrow certification, endorsement, or audit opinion.
- Use the Services to harass, disparage, or exert improper pressure on any third party named in a Source File.
- Use the Services in any manner that violates applicable law or these Terms.
We use automated systems and third-party invalid traffic detection to monitor for violations. Accounts found in violation may be suspended without notice, pending investigation.
9. Intellectual property
All platform technology, AI models, algorithms, software, interfaces, and associated documentation are the exclusive intellectual property of Lumorrow. Nothing in these Terms grants you any ownership rights in the Services.
Lumorrow does not claim ownership of any Source File, which remains the property of whoever published it. Lumorrow does own the compilation: the selection, retrieval, structuring, reconciliation, and change history that together constitute Verify Data, together with any database right subsisting in it under the Copyright and Rights in Databases Regulations 1997 or equivalent law. Your rights in Verify Data are limited to the licence granted in Section 7.2.
You are granted a limited, non-exclusive, non-transferable licence to access and use the Services solely as permitted by these Terms and your MSA (and any IO), for the duration of your account relationship.
You retain ownership of your own Content and data. By submitting Content through the Services, you grant Lumorrow a limited licence to process, transmit, and display that Content as necessary to operate the exchange.
10. Confidentiality
Each party may disclose confidential information to the other in connection with the Services. "Confidential Information" means any non-public technical, commercial, or operational information designated as confidential or that a reasonable person would understand to be confidential.
Each party agrees to: (a) hold the other's Confidential Information in strict confidence; (b) not disclose it to third parties without prior written consent; and (c) use it only for the purpose of exercising rights or performing obligations under these Terms. These obligations do not apply to information that is publicly known, independently developed, or required to be disclosed by law.
Lumorrow's floor-pricing algorithms, auction logic, and intelligence-layer models are considered Confidential Information of Lumorrow regardless of any designation.
11. Payment and subscriptions
11.1 Ad exchange
All commercial terms — including pricing, revenue share rates, currency, invoicing, payment cycles, and minimum thresholds — are governed by your MSA and the applicable Insertion Order. Where those terms apply, they prevail over any general statement on this website. In all cases:
- Disputed amounts must be raised in writing within the period set out in your MSA; undisputed amounts remain payable when due.
- Lumorrow reserves the right to withhold payment for revenue attributable to invalid traffic, policy violations, or fraudulent activity pending investigation.
11.2 Verify subscriptions
Verify offers a free plan and paid plans. Paid plan pricing is as displayed at verify.lumorrow.com at the time you subscribe.
- Billing. Paid plans are billed in advance, on a recurring basis, for the plan and billing period you select. Payments are processed by our third-party payment processor, Stripe. Lumorrow does not receive or store your full card details.
- Automatic renewal. Your subscription renews automatically for successive billing periods at the then-current price until you cancel. Each renewal is charged to your payment method on file.
- Cancellation. You may cancel at any time from your account settings. Cancellation takes effect at the end of the billing period in which you cancel; you keep paid-plan access until then, after which the account reverts to the free plan or closes.
- No partial refunds. Fees already paid are non-refundable, and we do not refund or credit part-used billing periods, except where a refund is required by law or where we have charged you in error.
- Plan changes. Upgrades take effect immediately and are charged at the point of upgrade. Downgrades take effect at the start of the next billing period.
- Price changes. We may change plan pricing on at least 30 days' notice before the change applies to your next renewal. If you do not accept a price change, cancel before that renewal.
- Taxes. Stated prices exclude VAT and any other applicable taxes or duties, which are added where required.
- Failed payment. If a renewal payment fails, we may retry it and may suspend or downgrade paid features until payment succeeds.
12. Warranties and disclaimers
Each party warrants that it has the authority to enter into these Terms and will comply with applicable law.
The Services are provided "as is" and "as available." To the maximum extent permitted by law, Lumorrow disclaims all warranties, express or implied, including warranties of merchantability, fitness for a particular purpose, and non-infringement. We do not warrant that the Services will be uninterrupted, error-free, or meet any specific fill rate, eCPM, or revenue target.
Verify in particular. Verify reports on files published and controlled by third parties. Lumorrow does not warrant that Verify Data is accurate, complete, current, or fit for any particular decision, and specifically does not warrant that:
- any Source File was available, retrievable, or correctly formatted at the time of any given crawl;
- a Source File accurately reflects the commercial relationships it purports to describe;
- the absence of a corroborating entry indicates any fault, breach, or unauthorised activity by any party; or
- Verify identifies every discrepancy, or that a clean result means a supply path is free of risk.
Verify Data is provided for information only. It is not legal, financial, compliance, or investment advice, and it is not a substitute for your own due diligence. You should verify anything material with the counterparty concerned before acting on it.
13. Limitation of liability
Where you have entered into an MSA with Lumorrow, the limitation of liability set out in that MSA governs your use of the advertising services, and this Section applies only to your use of our websites, Verify, and any access not covered by an MSA.
To the maximum extent permitted by applicable law, Lumorrow's total aggregate liability to you is limited as follows:
- Paid Verify subscriptions: the total fees you paid to Lumorrow for Verify in the twelve months immediately before the event giving rise to the claim.
- Website use, free Verify use, and any other access not covered by an MSA: £100.
In no event shall either party be liable for indirect, incidental, special, consequential, punitive, or exemplary damages, including lost profits, loss of data, loss of goodwill, or losses arising from a commercial decision taken in reliance on Verify Data, even if advised of the possibility of such damages.
Nothing in these Terms limits liability for death or personal injury caused by negligence, fraud, or any other liability that cannot be excluded by law.
14. Indemnification
You agree to indemnify, defend, and hold harmless Lumorrow and its officers, directors, employees, and agents from and against any claims, damages, losses, and expenses (including reasonable legal fees) arising out of or relating to: (a) your use of the Services in breach of these Terms; (b) your Content; (c) your violation of applicable law; (d) any claim that your Content infringes a third party's intellectual property or privacy rights; or (e) any claim brought by a third party arising from your publication, redistribution, or characterisation of Verify Data, including any claim in defamation or malicious falsehood.
15. Term and termination
These Terms remain in effect for as long as you hold an account or use the Services. Either party may terminate the account relationship on 30 days' written notice; for paid Verify subscriptions, cancellation is governed by Section 11.2. Lumorrow may suspend or terminate your access immediately if:
- You materially breach these Terms and fail to cure within 10 business days of written notice;
- We detect significant invalid traffic or fraudulent activity associated with your account;
- You bulk-extract Verify Data, circumvent plan allowances, or otherwise breach Section 7.2 or 7.3;
- Continuation would expose Lumorrow to legal, regulatory, or reputational risk;
- Required by applicable law or regulatory directive.
On termination, your licence to use the Services ceases, including your licence to use Verify Data, and any API credentials are revoked. You may export your own account configuration before the effective date. Sections 9, 10, 11, 13, 14, and 16 survive termination.
16. Governing law and disputes
These Terms are governed by the laws of England and Wales. Any dispute arising out of or in connection with these Terms shall be subject to the exclusive jurisdiction of the courts of England and Wales, except that either party may seek injunctive or other equitable relief in any court of competent jurisdiction to protect its intellectual property or confidential information.
17. General
- Entire agreement: These Terms, together with any MSA and Insertion Order, constitute the entire agreement between you and Lumorrow relating to the Services and supersede all prior discussions and agreements. For Verify, where no separate written agreement is in place, these Terms alone constitute that agreement.
- Severability: If any provision of these Terms is found unenforceable, the remaining provisions continue in full force.
- Waiver: Failure to enforce any provision does not constitute a waiver of the right to enforce it in the future.
- Assignment: You may not assign your rights or obligations under these Terms without our prior written consent. We may assign these Terms in connection with a merger, acquisition, or sale of substantially all our assets.
- Force majeure: Neither party is liable for delays or failures caused by circumstances beyond its reasonable control.
- Updates: We may update these Terms from time to time. Material changes will be communicated with at least 30 days' notice. Continued use after the effective date constitutes acceptance.
18. Contact
For questions about these Terms:
Lumorrow Ltd
Company No. 17237950
Suite 3, 2nd Floor 760 Eastern Avenue
Newbury Park, Ilford
United Kingdom, IG2 7HU
[email protected]