The IndexFlow SEO Suite
Practical utilities designed to accelerate organic traffic, diagnose indexing friction, and promote digital products.
Submit URL to Google & Index Checker
Instantly check if any page is indexed in Google's search results and launch Search Console inspect tools.
Robots.txt Generator
Create crawl-optimized robots.txt files with 1-click toggles to block AI scrapers (GPTBot, ClaudeBot, CCBot).
Meta Tag Checker & Health Score
Live-audit 11 critical SEO tags, Open Graph social cards, and receive an instant technical SEO score.
Startup & SaaS Deal Finder
Discover curated early-stage digital tools, acquisition opportunities, and SaaS products.
Submit Your Startup / Tool
List your SaaS, developer tool, or utility in our public directory. 100% free editorial submission.
Technical SEO & Indexing Guides
In-depth case studies and tutorials on solving 'Discovered - currently not indexed' and Google indexing APIs.
40+ Precision Calculators
Financial Calculators
View all Financial →Mortgage Calculator
Calculate monthly mortgage payments, total interest, and full amortization schedule.
Loan Calculator
Calculate monthly loan payments and interest costs for personal loans, auto loans, or mortgages.
Auto Loan Calculator
Calculate monthly car payments, trade-in values, sales tax, interest costs, and total vehicle financing.
Interest Calculator
Compute simple interest and compound interest earnings on savings and investments.
Payment Calculator
Determine periodic payment amounts required to pay off debts or loans in a specific timeframe.
Retirement Calculator
Plan your retirement savings goal and estimate future nest egg growth.
Amortization Calculator
Generate a complete loan amortization schedule showing principal vs interest breakdown over time.
Investment Calculator
Project future portfolio wealth based on initial investment, recurring contributions, and rate of return.
Fitness & Health Calculators
View all Fitness & Health →Calorie Calculator
Free online calorie calculator. 100% free with no sign up, no ads, and zero BS. Calculate daily calories, BMR, TDEE, macros & personalized weight loss timeline.
BMI Calculator
Compute your Body Mass Index (BMI) instantly to check if your weight falls within a healthy weight range.
BMR Calculator
Calculate your Basal Metabolic Rate (BMR) to find out how many calories your body burns at complete rest.
Body Fat Calculator
Estimate your body fat percentage using standard body measurements (U.S. Navy Method).
Ideal Weight Calculator
Determine your ideal body weight range based on height, gender, and recognized medical formulas.
Pace Calculator
Calculate your running pace, speed, or target finish time for marathons, 5Ks, 10Ks, and workouts.
Pregnancy Calculator
Estimate your due date, conception date, and current pregnancy milestone timeline.
Due Date Calculator
Find your baby's exact estimated arrival date and key pregnancy week milestones.
Math Calculators
View all Math →Scientific Calculator
Perform advanced mathematical operations including trigonometry, logarithms, powers, and roots.
Fraction Calculator
Add, subtract, multiply, divide, and simplify proper and improper fractions or mixed numbers.
Percentage Calculator
Calculate percentage change, percent of a number, or percentage increase/decrease instantly.
Random Number Generator
Generate random numbers, lottery numbers, or random pick lists within custom numeric ranges.
Triangle Calculator
Calculate side lengths, angles, perimeter, and area of any right or oblique triangle.
Standard Deviation Calculator
Calculate sample and population standard deviation, variance, mean, and statistical dispersion.
Other Calculators
View all Other →Age Calculator
Calculate exact age in years, months, days, hours, and minutes from date of birth.
Date Calculator
Add or subtract days, weeks, months, or years to/from any date or count duration between two dates.
Time Calculator
Add, subtract, convert, and calculate elapsed time intervals in hours, minutes, and seconds.
Hours Calculator
Calculate total work hours, weekly timecard totals, and break time deductions for payroll.
GPA Calculator
Calculate high school or college Grade Point Average (GPA) on weighted or unweighted 4.0 scales.
Grade Calculator
Determine what score you need on your final exam to achieve your desired target course grade.
Concrete Calculator
Calculate concrete volume in cubic yards or meters and estimated bag counts for slabs, footings, and steps.
Subnet Calculator
Compute IPv4 network subnet masks, usable host IP ranges, broadcast addresses, and CIDR notation.
Tools Calculators
View all Tools →Password Generator
Generate ultra-secure, cryptographically random passwords with custom character length and rules.
YouTube Video Downloader
Free online YouTube video downloader. Download HD videos and MP3 audio instantly with no signup, no ads, and no limits.
60-Second Speech Coach
Free AI-powered 60-second speech coach. Record your mic or paste text to analyze pacing, filler words, clarity score, and get an enhanced pro script.
Frequently Asked Questions
Are all SEO tools free to use?
Yes. All tools including our Google Index Checker, Robots.txt Generator, and Meta Tag Analyzer are 100% free with no registration required.
How do I submit my startup to your directory?
Visit our Submit Startup page, fill out your product details, and our editorial team will review and publish your listing within 24–48 hours.
How accurate are the calculators?
Our 40+ calculators use recognized scientific, medical, and financial algorithms (such as Mifflin-St Jeor for BMR and standard amortization schedules).