DigitalMarketingApp.in provides browser-based marketing tools alongside product and news archives. This page explains the website’s ownership, the scope of its calculations and how to request a correction. Published 11 November 2026.
Ownership and contact
The website is owned and maintained by GURMEETWEB TECHNICAL LABS®, founded by GURMEET SINGH DANG. For questions, technical problems or corrections, email contact@gurmeetweb.com. Further information is available on our About Us and Contact pages.
What the tools measure
The calculators apply mathematical formulas to information entered by the user. They do not connect to your advertising accounts or fetch live keyword volumes, rankings, campaign spend or competitor data. Text tools assess the text supplied to them; they do not establish how a search engine will rank that text.
- Marketing ROI = ((attributed revenue − marketing expenditure) ÷ marketing expenditure) × 100. This simplified revenue-based calculation excludes other business costs unless you include them in your inputs.
- ROAS = attributed advertising revenue ÷ advertising spend. ROAS measures revenue per unit of advertising spend; it does not measure net profit.
- CPC = spend ÷ clicks; CPM = (spend ÷ impressions) × 1,000; CTR = (clicks ÷ impressions) × 100.
- CPA = spend ÷ conversions; conversion rate = (conversions ÷ the chosen visitor or session denominator) × 100. Keep the attribution window and denominator consistent.
- CAC and lifetime value depend on the costs, time period and assumptions supplied. Lifetime value is an estimate and may not account for churn, discounting or profit margin.
- A/B test results and readability scores are estimates. Statistical assumptions, sample size and English-language readability conventions affect their usefulness.
Zero or invalid denominators do not produce meaningful rates. Choose compatible units, use the same reporting period and check the source platform’s definitions before comparing results. Formula explanations appear in the marketing metrics section.
Sources and interpretation
For platform-specific campaign attribution and tracking definitions, consult the platform’s current official documentation, including Google Analytics campaign URL guidance. For search eligibility and indexing, refer to Google Search Essentials and Bing Webmaster Guidelines. A calculator result is an aid to analysis, rather than a platform certification or a guarantee of outcomes.
Product listings, news and commercial links
Product listings are distinct from the site’s calculators. A product description or a Buy Now link does not by itself mean that the item has been independently tested or reviewed. Confirm the seller, current price, availability and terms on the destination website. Third-party trademarks and product details belong to their respective owners. Where commercial or affiliate relationships apply, they should be disclosed with the relevant content; do not assume that an archive listing is an editorial endorsement.
Corrections and updates
To report a problem, send the page URL, a description of the issue and, for a calculation error, example inputs and the expected output. Do not send passwords, advertising account credentials or confidential customer data. We can use this information to investigate the issue. Page dates identify page updates; they do not certify that every linked product or news item has been independently reverified.
Limitations
No tool or page can guarantee Google or Bing rankings, inclusion in an AI answer, traffic, leads, advertising results or profit. Use appropriate professional judgment and verify important decisions with primary data. Read the Privacy Policy and Terms and Conditions for further information, or browse the site guide.