Live scan
AdX Readiness Checker
Inspect public technical signals and build a practical readiness checklist.
Open toolTool page & instructionsPublisher tools, thoughtfully built
Sellers.json, Schain & GAM Tag Checkers
Investigate seller declarations and ad-tag setup with separate checks for sellers.json, OpenRTB SupplyChain JSON and Google Publisher Tag code. Keep structural findings distinct from identity and delivery verification.
Explore all toolsNo signup required
Understand the seller declarations behind an ad request
ADXLens brings seller-ID lookup, SupplyChain structure validation and static Google Publisher Tag inspection together. Use the findings to investigate declarations and setup issues, then verify identities and commercial relationships separately.
Sellers.json checker · SupplyChain validator · GAM tag inspector
Follow the evidence through the advertising supply chain
Look up a seller declaration
Inspect an exact seller ID in a supported live sellers.json source or pasted JSON. Treat confidential fields as unknown.
Validate a SupplyChain object
Review the structure and declared node fields in the JSON you provide. Verify identities and payment relationships separately.
Inspect GPT setup without running code
Read recognizable ad-unit paths, sizes and calls. Use actual browser and platform diagnostics for delivery questions.
Questions about ADXLens
Do ads.txt, sellers.json and schain show the same thing?
No. They describe different parts of the advertising supply chain. Compare the relevant identifiers and scope rather than treating one valid file as proof of the whole path.
Can these checks prove that an ad request will fill?
No. Seller declarations and static tag structure do not establish demand, targeting eligibility or an auction outcome.
Operated by Vivek Kushwah. Independent publisher utilities with transparent inputs and limitations. Read the method and official reference on each tool page.
Everything you need. Nothing you don’t.
Search, calculate, validate. Choose a tool to get started.
Live scan
AdSense Website Readiness
Review observable website basics before applying for monetization.
Open toolTool page & instructionsLive scan
Ads.txt Live Checker
Fetch the real file, inspect seller records and identify syntax issues.
Open toolTool page & instructionsBrowser only
Ads.txt Syntax Validator
Find malformed fields, duplicates and line-by-line formatting errors.
Open toolTool page & instructionsBrowser only
Ads.txt Generator
Build, copy and download your own authorized seller records.
Open toolTool page & instructionsLive scan
App-ads.txt Checker
Inspect the file hosted on an app developer’s website.
Open toolTool page & instructionsLive / local
Sellers.json Checker
Look up seller IDs and validate public seller declarations.
Open toolTool page & instructionsBrowser only
SupplyChain Validator
Validate OpenRTB schain JSON and payment-chain node fields.
Open toolTool page & instructionsBrowser only
GAM Tag Inspector
Extract ad unit paths, sizes and recognizable GPT calls safely.
Open toolTool page & instructionsBrowser only
CPM Calculator
Calculate cost per thousand impressions, total cost or volume.
Open toolTool page & instructionsBrowser only
eCPM Calculator
Turn realized revenue and impressions into effective CPM.
Open toolTool page & instructionsBrowser only
Page RPM Calculator
Measure earnings per thousand page views, not ad impressions.
Open toolTool page & instructionsBrowser only
CTR Calculator
Calculate click-through rate from clicks and impressions.
Open toolTool page & instructionsBrowser only
Fill Rate Calculator
Understand the share of ad requests that were filled.
Open toolTool page & instructionsBrowser only
Ad Revenue Calculator
Explore daily, weekly and monthly revenue assumptions.
Open toolTool page & instructionsBrowser only
Revenue Share Calculator
Split revenue transparently between publisher and network.
Open toolTool page & instructionsBrowser only
Viewability Calculator
Calculate viewable impressions as a share of measurable impressions.
Open toolTool page & instructionsBrowser only
CPC Calculator
Calculate cost per click, total cost or expected click volume.
Open toolTool page & instructionsBrowser only
Ad Size Preview
Preview eight standard sizes inside a responsive viewport.
Open toolTool page & instructionsBrowser only
Monetization Health Report
Combine matching scan evidence and your metrics into a prioritized report.
Open toolTool page & instructionsNo matching tools. Try another search.
Useful evidence. Clear limits.
Choose a tool, enter your own numbers or public website information, and review the result. Every report separates what was observed from what still needs a human review. No invented approval scores.
Your inputs stay yours.
Calculations and pasted-text checks run in your browser. Live scans send only your supplied public domain to the configured backend. We never ask for Google passwords, account access or API keys.
Publisher tools: methods & instructions
AdX Readiness Checker
Checks HTTPS, homepage text, recognizable policy links, ads.txt and indexing directives. A fetched link is evidence of a link, not a review of its contents.
AdSense Website Readiness
This advisory review cannot inspect your AdSense account, verify content rights or determine approval. Review Google policies manually.
Ads.txt Live Checker
Retrieves the root /ads.txt over HTTPS. Syntax does not prove seller authorization. Network failures and missing files are reported separately.
Ads.txt Syntax Validator
Paste plain text to check three required seller fields, the optional certification ID and supported ads.txt 1.1 directives. Runs locally.
Ads.txt Generator
Use the advertising-system domain and seller account ID supplied by your monetization provider. We never generate or verify real seller IDs.
App-ads.txt Checker
Fetches /app-ads.txt from the supplied developer domain. App-store developer website links, ownership and package identity need separate verification.
Sellers.json Checker
Checks a domain’s root /sellers.json, or pasted JSON. Confidential entries may legitimately omit name and domain; confidentiality alone is not evidence of fraud. Files over 2 MB are explicitly refused by live scans.
SupplyChain Validator
Supports SupplyChain 1.0 objects and common bid-request wrappers. Validates ver, complete, nodes, asi, sid and hp. Structure alone cannot prove supply-chain authenticity.
GAM Tag Inspector
Static heuristic inspection of pasted Google Publisher Tag code. The code is never executed. Dynamic paths, comments and variable-based sizes may need manual review.
CPM Calculator
CPM = advertising cost ÷ impressions × 1,000. Choose a currency shared by all money inputs. Reverse calculations solve cost or impressions.
eCPM Calculator
eCPM = revenue ÷ impressions × 1,000. Uses realized revenue rather than a guaranteed auction price. Reverse calculations are supported.
Page RPM Calculator
Page RPM = estimated earnings ÷ page views × 1,000. Page views and ad impressions are different denominators; this tool calculates Page RPM only.
CTR Calculator
CTR = clicks ÷ impressions × 100. Use matching reporting periods and scope. This calculator requires clicks not to exceed impressions.
Fill Rate Calculator
Default definition: filled ad requests ÷ total ad requests × 100. Platforms may define fill differently; use matching request metrics, not impressions as a substitute.
Ad Revenue Calculator
Daily opportunities × assumed fill rate × CPM ÷ 1,000. If impressions are already served, set fill to 100% to avoid counting fill twice. Monthly projection uses 30 days.
Viewability Calculator
Viewability = viewable ÷ measurable impressions × 100. Measurable impressions are those where viewability could be measured; they are not the same as all served impressions.
CPC Calculator
CPC = total advertising cost ÷ clicks. Choose a calculation mode to solve for CPC, total cost or clicks using a consistent currency.
Ad Size Preview
Visual placeholders only: 300×250, 336×280, 320×50, 320×100, 728×90, 970×250, 160×600 and 300×600. Large previews scale down to fit; actual dimensions stay visible. No ads are requested.
Monetization Health Report
Rules-based suggestions use matching live scan results from this browser session and metrics you supply. No fabricated score, AI claim or official eligibility decision. Thresholds are diagnostic heuristics, not Google requirements.
Independent readiness assessment — not an official Google approval decision. Technical findings cannot establish content compliance, traffic quality or monetization eligibility.
Good questions. Straight answers.
Can ADXLens approve my website for AdX or AdSense?
No. Google or the applicable authorized process decides approval. ADXLens offers independent technical checks and manual-review guidance.
Why do live checks need a backend?
Browsers restrict many cross-origin website requests. A configured scanning backend retrieves permitted public files safely. Without it, live tools show “Live Scan Not Configured”; local tools remain usable.
Does a valid ads.txt file prove seller authorization?
No. Valid formatting only establishes that a file follows supported syntax. Confirm the account ID and commercial relationship with the advertising provider.
Are revenue projections guaranteed?
No. They are calculations from your assumptions. Actual demand, geography, viewability, consent, invalid traffic deductions and reporting definitions affect outcomes.
Can these tools rank in Google or appear in AI answers?
Useful original content and sound technical SEO support discovery, but rankings, indexing and AI recommendations are never guaranteed. Separate tool pages can be developed later with their own unique explanations and functionality.