Keyword Golden Ratio: Rank in 24 HOURS. DATA DRIVEN LONG TAIL KEYWORDS to RANK in Google

This post may contain affiliate links so I earn a commission. Please read my disclosure for more info.

KGR Formula: KGR= (# of allintitle results)/(search volume)

KGR Formula: KGR = (# of allintitle results)/(search volume)

Updated Nov 30, 2019. Getting organic Google traffic to your niche site is critical. Without it, people don’t read the great content you’ve written, click your affiliate links, or engage with your ads.

But convincing Google to pay attention to a new affiliate site is tough.

It can take 6+ months for new blog content to get out of the “Google Sandbox” and start ranking in a meaningful way.

If you don’t like crossing your fingers and waiting around, I developed a 100% white-hat method for getting organic traffic to your niche site — and fast.

It’s called the Keyword Golden Ratio (KGR), and it can help you rank in the top 50 (or better) within a few days.

(Yes, a few days — not months!)

What is the Keyword Golden Ratio? (KGR)?

The Keyword Golden Ratio is a data-driven strategy for finding long-tail keywords that are underserved on the internet (i.e. greater demand for the content than supply).

That’s why KGR has proven to be the #1 shortcut for getting fast results to a new site.

I created the KGR to find long tail keywords that hardly anyone else had content for.

Get my personal KGR Calculator Spreadsheet right here…

When you publish a new piece of content targeting a KGR phrase, your article should rank in the top 50 SERP results within a few days – sometimes HOURS.*

If your site already has a respectable amount of authority and it’s out of the Google Sandbox, over 6 months old, you can often rank in the top 15!

*We’ll talk about a few exceptions later in this article.

5 Reasons to Try KGR

The KGR is helpful for five main reasons.

1. Stay Motivated

Creating a successful niche site doesn’t happen overnight, but new website owners need to see small wins early to stay motivated. Seeing site visitors and sales (cha-ching!) early proves that all your hard work CAN pay off.

2. Prioritize Effort

Instead of throwing darts at thousands of keywords blindfolded, you can prioritize which keywords and content to publish first. KGR helps narrow down your list and target low-hanging fruit phrases for which you’ll actually be competitive.

3. Be Objective

Trusting your gut is fine for many things, but keyword research isn’t one of them. (At least, not early on.) Applying a consistent data-driven formula gives you realistic expectations for how every keyword phrase you target should actually perform.

4. Stand Out

Since calculating KGR is a manual process, most people (including your competitors) won’t bother. You’ll have access to rich data they can’t simply pull up on a free web tool in a couple minutes.

5. Leapfrog Competitors

Few things are more motivational than seeing your site rank above big-name competitors in Google’s SERP results.

My KGR Success Story

I’m making a wild claim with the KGR so I understand that I need to show you that it works. I tested the KGR on one of my Amazon Affiliate sites so I can share the earnings and the traffic boost.

In less than a year, the earnings went from $100 to $14,853.

The traffic increased by about 800%.

So it worked much better than I ever would have dreamed. I’ll be sharing some others’ success stories as well.

Here’s an overview and if you want to learn more, check out this blog post: 2-Step Process to 10x Your Amazon Niche Site Value.

  1. I published 20 KGR compliant product review articles. Traffic and earnings went up within a few weeks, then grew more.
  2. I published 200* more posts in 5 months with a bootstrapped approach.
  3. I published a few articles in the first month, then reinvested the revenue in more content. By the fifth month, I published about 60 articles.
  4. The site had some existing backlinks from blog commenting and guest posting.
  5. No link building or outreach was done during the 12 month period.

? It’s interesting if I can do it, but the real proof is when other people can repeat the process.

How to Calculate the KGR

One of the best things about the KGR formula is that it’s simple and (nearly) foolproof:

The Keyword Golden Ratio must be less than 0.25.

The ratio is:

The number of Google results that have the keyword phrase in the title divided by the local monthly search volume, where the LMS is less than 250.

KGR Formula: KGR= (# of allintitle results)/(search volume)
  • If KGR is less than 0.25: You should rank in the top 100 once your page is indexed by Google.
  • If KGR is between .25 and 1: You should still rank in the top 250 pretty quickly.
  • If KGR is greater than 1: You know it’s a more competitive term even though the search volume is quite low (under 250).

If you’re just starting out, I strongly recommend sticking to the formula and targeting terms under 0.25.

Down the road, once your site is more established, you can experiment with higher search volumes.

Watch a FREE Training Session.

An Amazon Affiliate site made about $100 in Jan 2016, then $14,819 in Dec 2016.

WHY? What happened?

I published a BUNCH of KGR content.

Click here and a new tab will open. You’ll enter your name & email address, then you can watch the IN DEPTH Training for KGR Keyword Research.

This Golden Ratio is going to be your ticket to get fast results and that’s very important when you are getting started on your site.

Watch this video for a few success stories from the Niche Site Project Community…

Behind the Scenes of the KGR Formula

When I developed the KGR formula, I capped search volume at 250 because:

  1. Lower search volume terms can rank faster in Google, so a keyword with 250 searches will typically rank faster than a keyword with 2500 searches per month.
  2. Most people target keywords with higher search volumes since there is greater profit potential. That means there are fewer competitors in the game for long-tail keywords.

Remember, your sweet spot is a KGR score of less than 0.25.

Let’s look at a quick example to show why you can rank in the top 50 quickly for a KGR term:

If you have a KGR of 0.25 and a maximum search volume of 250, you end up with about 63 allintitle results. (Keep reading if you don’t know what “allintitle” means.)

That means that there are only ~63 pages on the internet targeting that keyword phrase by using it in the page title.

With a quality piece of content, you have a really good chance of ranking well amidst only 63 competing pages!

What is “Allintitle”?

Allintitle is an advanced Google search operator that shows the website results which have an exact combination of selected words within the meta title of a post.


If you’re doing a lot of research at once, don’t be surprised if Google throttles your “allintitle” search and displays this Captcha form:


Google does this to prevent automatic scraping of its data by web robots.

Simply check the box to prove you’re a human, and you’ll be allowed to continue searching.

Why 250 in the KGR?

My observation is that keyword phrases with higher search volumes have more competition and take longer to rank.

More Competition

There’s more competition because businesses can make more money if more people are searching for a keyword phrase. The market follows the money.

However, that means there are more competitors trying to get a piece of the pie.

Longer to Rank in Google

I haven’t tested this, but I have a hunch that higher volume search terms just take longer to move up in the Google ranks.

Years ago, you could start a site and rank #1 in Google in weeks for a keyword phrase that gets 9,000 searches per month.

Times have changed, and I believe that Google has slowed the ranking velocity so that it’s harder to reverse engineer the ranking algorithm.

Zig When Others Zag

By targeting a less competitive channel with low competition keywords, your content will be in a better position to rank fast.

How to Use Keyword Research Tools to Find KGR Terms

Now, let’s look at real examples of keywords that fit the KGR formula and one that doesn’t.

We’ll use an example of a niche that is very competitive — yes, even competitive niches will have KGRs terms.

I’m using KW Finder for the example in this article and in the video below, but you can use any keyword research tool, even free ones, that will give you a search volume.

?Check out KWFinder, GET 10% OFF by using my coupon code: “nichesiteproject” *** I’m an affiliate so I get a commission if you sign up with my link. Thanks!

Here’s a video if you want to watch a demo.

1. Find relevant keyword ideas

One of my favorite ways to find KGR compliant terms is to use Google Autosuggest and format like one of these:

best (product-type) for (application or user-type)


best (product-type) with (feature)

? I share two other great formats in the next section.

You can do this manually, and it looks like this:


Just start typing in the keyword phrase and pause between words. Google will show you what other people search for.

I like the vlogging topic since I enjoy YouTube so let’s go deeper on that phrase.


If you click in the Google search field, then you’ll see related searches. I think the specificity of the “flip screen” is good so lets see what the search volume is with KWFinder.

And if we look at “best vlogging camera with flip screen,” see the other format with a feature at the end.

However, you can save a lot of time and effort by using a keyword tool like KWFinder with advanced filtering options.

First, enter your search phrase with US and English selected (or whatever is appropriate for you).

Then click on the “Find Keywords” button.


We care about the Search Volume and Keyword Difficulty (KD), but the other metrics aren’t important.

You’ll now see the unfiltered list of results — quite a few, 496, in this case. And that’s really too many to deal with so we’ll filter to refine the list.


2. Filter out keywords with search volume higher than 250

We can get rid of a lot of noise by removing the higher search volumes.

Just enter “250” for the max search volume.

And while we’re at it, I’ll filter to include the word “best” so we have mostly buyers terms.

Now we have a much shorter list of 76 keyword phrases with search volumes in the KGR range.

Let’s check out “best camcorder for vlogging.” You can hover over the row and click to copy the full keyword phrase to save time.


3. Find the number of websites with exact match titles

Next, you need to check the allintitle, the advanced Google Search command.

Type in allintitle: and the search phrase with no spaces and no quotes.

Don’t use quotes because that will lower the number of results and throw off your calculations.

blankGoogle returns the number of results, which can be used for your KGR formula.

We see there are 37 results, so we can plug that into the formula.

KGR = (allintitle results) divided by (search volume)

KGR = 37 ➗ 190 = 0.195

The result is less than 0.25, so we have our first KGR compliant term!

Want to see me do this process? Check out my demo of the KGR with KWFinder on YouTube.

KWFinder also shows great metrics for each keyword, so you can do competition analysis without leaving the app.


That’s a massive time saver!

Let’s look at another keyword phrase on the list. It’s very common to find many KGR terms at the same time.

“Best camera for blogging and vlogging” gets 60 searches per month.


Just copy the keyword phrase again, then head to Google to check the allintitle.


KGR = (allintitle results) divided by (search volume)

KGR = 14 ➗ 60 = 0.23

Another winner! You might not believe it if you’re just getting started with keyword research, but I found those two in about 5 minutes while I was writing this post.

Once you get started and learn the mechanics, you’ll be able to find them really quickly too.

A Keyword Phrase That Doesn’t Fit The KGR

I saw a keyword phrase that had a very low keyword difficulty number.


So checked the allintitle results.


If we plug it into the KGR formula, then we have a ratio under .025.

KGR = (allintitle results) divided by (search volume)

KGR = 37 ➗ 460 = 0.08

So is this a KGR compliant keyword? Should we go for it?

It’s not a KGR keyword because the search volume is over 250. By definition, it’s not KGR.

However, it’s a great keyword where the searcher is trying to find information to solve a specific problem. There isn’t much competition based on the allintitle results.

So I would look at the Google results and if the competition looked reasonable, I would definitely target this keyword.

? I don’t suggest you rule out keywords with a dogmatic view of the keyword golden ratio.

What’s the BEST Keyword Golden Ratio Format?

It’s one of the most common questions I get. So here’s a demo of some common formats for the KGR.

Let’s focus on buying type keywords, which are the best for affiliate sites. Those are the money-making keywords that people use when they want to make a purchase in the near future.

By Application

People can use products for many different things. So searchers use specific phrases to find the most relevant content.


Best [product] for [application]


Best DSLR for landscape photography

By User Type

Different user types can use the same products, and they’ll likely have different things that are important to them.


Best [product] for [user type]


Best DSLR for teens

By Price Range

Other searchers use pricing as a guide. Some people have a set budget for a specific product, and some people always want the cheapest or most expensive product.


Best [product] under [application]


Best DSLR under $500

? Be careful with mentioning prices on your Amazon Affiliate site. It’s against the Terms of Service to list the price of a product unless it’s pulled from the Amazon Advertising API to ensure it’s accurate. 

Using SEM Rush to Find KGR Terms from Competitors

You all know I’m a big fan of SEM Rush. I think they are a great tool to use to find Keyword Golden Ratio (KGR) terms.

When I first started experimenting with the KGR, I used SEM Rush almost exclusively to find the terms. In the video, I share the best ways to filter the massive amount of data you can get from SEM Rush so it’s manageable.

Here is a link to SEM Rush **It’s an affiliate link and I get a commission if you use it and buy a paid plan. If so, thanks!

The KGR Masterclass – It’s FREE

I put together a Masterclass with my friend, Alex (WP Eagle), on YouTube. It’s totally free 🙂 and there are 10 total videos. Here is what we cover:

  1. Introduction
  2. Keyword Golden Ratio Success Stories & Demo of the KGR Spreadsheet
  3. Find Keywords using keywords everywhere
  4. Keyword Golden Ratio Using SEM Rush
  5. Find Keywords using Answer the Public
  6. Reasons why 250 is in the keyword golden ratio
  7. How long should affiliate content be?
  8. Best Keyword Golden Ratio Format
  9. Keywords you should avoid
  10. Case Study: 200 KGR Posts in 5 Months

Check out all 10 of the videos over on YouTube.

Potential KGR Pitfalls

The KGR is a fantastic tool and can help you get traffic to your new niche site fast. But it’s not all rainbows and unicorns.

Here are some things to consider when using the Keyword Golden Ratio.

1. Keyword Stuffing

If Google is trying to return relevant results for searchers, it must help to cram your keyword phrase into your blog post as often as possible… right?


Overusing a keyword phase is called “keyword stuffing,” and Google does NOT reward it.

KGR-compliant terms are usually longer than normal keyword phrases, often four or more words.

Using long-tail keyword phrases over and over can be really unnatural to the reader.

For example, it would be weird if you wrote the “best ballpoint pen for journaling” more than a couple of times within your blog post.

Pro Tip: Use a KGR phrase once in the title and once more in the main content. That’s it. Don’t overdo it.

To make your copy sound more natural, sprinkle in other partial match keywords and related phrases and keywords instead.

Pro tip: Don’t pay attention to keyword density metrics in the Yoast SEO plugin. The Keyword Golden Ratio is an advanced technique, and Yoast results don’t take that into account.

2. Keywords That Don’t Rank

Sometimes a KGR term doesn’t rank well, even if all the metrics told you it should.

Why is that?

Google is really good at knowing what the end user (i.e. the searcher) is interested in.

Before targeting a KGR-compliant term, you should Google the term and see if any other affiliate sites show up on page one of the SERP results.

You’ll see what Google is delivering to the searcher for that term – and that’s what is the user’s “search intent” is likely to be.

If Google returns mostly e-commerce sites in the results, searchers tend to like those results better than affiliate sites.

So you may not want to target that term after all.

If you see YouTube videos in the majority of the results, that means searchers usually want to see a video.

If the term happens to be medical or health related, then you’re likely to see big authoritative sites like Mayo Clinic, WebMD, medical journals, and others with a huge amount of trust in the medical field.

Pro Tip: Google tells you which types of sites are ranking in the search results. All you have to do is look carefully to find affiliate-friendly terms.

If you don’t see any sites that are similar to yours, that’s a bad sign. Even a KGR with great metrics is likely NOT going to rank in those scenarios.

3. Difficulty Finding KGR-Complaint Terms

Finding great keywords is a skill, and it’s one that you can get better at with practice.

Don’t get discouraged if finding KGR terms is hard at first.

Using tools like KWFinder can make it much easier, of course, but you still have to put the time in for your site to grow.

That’s actually part of the beauty of the KGR — competitors can’t simply buy a tool that churns out KGR-compliant terms.

4. Only Trying One KGR-Compliant Post

The KGR method works really well at scale, and I suggest you try at least 20 KGR terms on your site to begin.

Historically, about 5% of KGR terms perform better than expected, 15% worse than expected, and 80% rank somewhere in the top 30-50 SERP results in a short time frame.

The 80% tend to move higher in rankings over time, depending on the quality of the content, your site’s authority, and relative competition.

If you only publish a single KGR compliant post, it may not rank. You might think the entire method is a failure.

However, if you publish enough KGR posts to give it a fair shake, you’ll see the magic!

5. Listening To People That ?NEVER? Tried

You should try the KGR yourself. There’s quite a few people out there — let’s call them internet trolls. They have their own agenda and incentives.

The only way to really know if the KGR can work is if you try it yourself. So don’t just believe me about the KGR and don’t believe the naysayers either.

Fire up your keyword research tool and start looking. The cost of trying it is very low so don’t miss out because some internet troll said:

? “That can’t work because [fill – in – uninformed – reason]…”

KGR Frequently Asked Questions

If you have questions about the specifics, you are not alone.

Read the Frequently Asked Questions about the KGR.

Have questions? Ask in the comments below.

About the author: Doug Cunnington is the founder of Niche Site Project. He shows people how to create Affiliate Sites using project management and a proven, repeatable framework. Doug loves creating systems, using templates, and brewing beer (but usually not at the same time).

Comments on this entry are closed.

  • Deepak

    Dear Doug

    Thank you for the very helpful content and the concept of KGR. I do have a question.

    Google sometimes omits results and shows only limited results. It usually shows the following message

    “In order to show you the most relevant results, we have omitted some entries very similar to the 76 already displayed.
    If you like, you can repeat the search with the omitted results included.”

    It’s usually the multiple pages from amamzon, ebay and craigslist that google wants to avoid repeating andwhen you repeat the search it can become 1000s more, what number should we include in these situations?

    76 or the 1000s?

    Look forward to your thoughts on this

  • Paul

    Hey Doug,

    After reading quite a lot recently about your formula I’ve just started a new site using the KGR for my initial keywords. I’ve got a pretty solid list of terms to send to my writers – all hitting the magic ratio. 🙂

    I was just wondering as for many of my keywords the “allintitle:” is good but a regular search shows some pretty strong pages ranking for the term just by the fact that they are authority sites and contain a partial match of the keyword (so wouldn’t show in “allintitle:” search).

    Once you’ve found a term, do you assess what the competition looks like without the “allintitle:” or do you just push on knowing that this is about initially establishing a page in the SERPs and then look to use link building later to rank the page top 10?

    • Doug Cunnington, PMP

      Paul, glad you’re checking it out for yourself.

      Yes, you should always check what is ranking. However, it’s not necessarily the authority of the site or if it meets some criteria for an “authority site.” It’s about searcher intent and what the SERP is telling you. So if you see all YouTube videos, then you can imagine that videos are what the people want.

      But you have the general idea and once you publish some content you’ll have an even better feeling for what’s working.

  • Michael Joseph

    Thanks a lot, Doug Cunnington, your KGR formula works best for me, I got a ton for low comp kw and ranking well in search engines.


  • Vikash Malik

    Hi Doug

    Thanks a lot for the great work. Your videos are wonderful. I have just started blogging and have found a list of KGR words. I have a list of 50 KGR words for a particular topic. How many you think i should stuff in my article? Any average numbers of KGR words like 10-20 per article or something like that? I will appreciate your response. Thank you

  • Nabiullah

    Hi Doug
    Thanks for the great keywords research method but i have some questions i hope you will clear my all doubts.

    1.How many keywords should be targeted in the 1000 words article including related keywords and focus keywords ?
    2.How many time focus keywords should use in the 1000 words article ?
    3.Is the keywords have low volume searches e.g 20,30 ,10 why we target these keywords because it have very low searches and only we will get 1-10 traffic in a week from these keywords if we rank.
    I know these questions are foolish type but as a beginner i need all these information I will appreciate your response. Thank you

  • Kevin

    Hey Doug, I’m really getting on board with the KGR!! I have a question though… can you add other words in the article title to help it make sense? For example, if the keyword is “Best ballpoint pen for bullet journaling”, could you have the title be “What is the best ballpoint pen for bullet journaling while laying in bed”. Maybe not the best example, but I think you get my question. Thanks!

    • Doug Cunnington, PMP

      Great! Yes, you can add words.
      Give it a try and report back.

      • Kevin

        Thanks! I thought so, but wanted to get your thoughts as well. I’ll report back when I get some data.

        I have another question… you say that 50% of the site content should be affiliate reviews and the other 50% should be information articles. You listed these 3 criteria for the information content:
        1. Go to Google and search for existing blogs or websites in the niche. Find the 2-3 most popular websites, then see what they write about.
        2. Find popular forums on the niche and see what questions people are asking.
        3. Go to Quora or Ask The Public to see more Q&A.

        So, my question is, should I be doing keyword research for the informational content as well? If so, would it be KGR type (just maybe the non-buyer type keywords)?

        OR, is the whole idea to just have the informational articles on the site for the sole purpose of satisfying google? And, therefore, visitors would need to search around on the site to find those articles vs going directly to them based on serp result?

        So I guess the bottom line is, should visors be finding the informational posts in the google serps?

        Thanks so much,

  • Madee

    Thanks for doing what you do, Doug! Working on my first niche site since June 01 and I’m so excited. Just a question — when should I apply for an Amazon Associates account?

    • Doug Cunnington, PMP

      Madee, I suggest that you apply when you get about 10-15 visitors per day. Then, you should be able to make the required sales pretty quickly.

  • Saswati Bhattacharya

    Hi Dough,
    Awesome technique. I am trying for myself. One issue i am facing is i am finding it very difficult to find kgr terms in my niche in my target country. With lot of effort i found around 30 kgr terms. Once i am over with those…what should be my next steps. Should i go for liitle higher kgr terms ?

    • Doug Cunnington, PMP

      You should publish content around those terms. 🙂 30 is quite a few so you’re in good shape.

      • Jorge Bravo

        Are you meaning, that we can have post with no KGR around the KGR posts?

        • Doug Cunnington, PMP

          No, that’s not what I meant, but you can post non KGR posts.

          I’m telling you that 30 is a great start so start publishing content. Why do you think you need more right now? I’m sure once you publish some content that you’ll be able to find more keywords. 🙂

          So get started and stop looking for keywords.

  • Ramunas

    Nice post dude, I should learn much more then I was expecting.

  • Nick

    Sorry, this is probably a dumb question, but what exactly does LMS mean in SEO terms? Thanks a lot for your invaluable tips. These free extensions really helped me a lot.

  • Pankaj

    In reply to one of your replies above –” Generally, you want to put 1 KGR per post.”
    1 –i have a problem here. say a KGR is “low carb diet for pcos”
    however there are many more diet recomendations for pcos (keto, intermittent fastig for pcos ) ,
    2– If we continue to write for each we will build loads of pages . 3–Wont it be a good idea to write Diet for Pcos as a topic and incorporate KGR’s in it.
    4 –or do u advice writing individullay for each KGR and then linking them to Diet for pcos page –additional work required
    5 — if we have relevent 40 more KGRS term for “low carb diet for pcos” — should we leave the rest 40 ??

    • Pankaj

      also can you suggest how to write content for KGR as it is already narrowed topoc. how to use KGR in it

  • Touhid

    Hi Doug

    Thanks for your KGR tool.
    I am new at KGR and posted about 10 articles, which shows in top 50 results.

    My content length is 1000 -1200 words and used Keyword (Long tail) in title, heading and 2/3 times in content.

    That means, i m using 4/5 times Keyword, So, is it right ? Or any suggestion?


  • Ns Amin

    Hi Doug,
    At first I want to thank you for sharing such a great information with us. I’m a newbie blogger and I want to ask you some question. If my site age was 2 month & I only publish kgr targeted content without any social or backlinks. Is there any possibility to rank number #1 on google ?

    • Doug Cunnington, PMP

      Thanks for checking it out.
      Yes, it’s possible. Doing some promotion is better.

  • Kristin

    Hi Doug,
    I’ve noticed inconsistency when using ALLINTITLE. When I refresh a page, the number for ALLINTITLE changes. For example I see the number 16.000, after refreshing the number changes to 40, the next time 100, then 16.000. Do you know the reason and what to do?

    • Doug Cunnington, PMP

      Kristin, I’ve heard about this some but haven’t seen it as much as other people. Geography and changing IP addresses seem to impact this.

      Usually, I just check once and move on. Perhaps that’s why I don’t see it. So why do you check more than once?

      That said, going with the first result would be viable.

  • melexchi izu

    Can a site of 2 months rank above other big sites when they also have a strong SEO power?

  • Shubham Holkar

    Thanks for the tips on SEMrush tool, its good but paid for better features

  • Will

    Hi Doug

    This is really great. Couple of questions from me:

    1) When looking at keyword planner, search volume is set in a range. For example, 10-100. Which number do I put in the equation?

    2) Search strings – can’t seem to copy from google. The address bar is just the keyword and no link. Any advice here?


    • Doug Cunnington, PMP

      Will, thanks for the comment. You’ll need to use a different KW Research tool now. The Keyword Planner just gives ranges now.

      I’m not sure what you mean about #2 though.

  • chris

    Hi Doug,
    I am currently checking out all your KGR related info.(website /youtube /.webinar…)
    I just wonder if there is a search query:
    “the best product” with a KGR of 3,98 (50volume/199allintitle)
    “the best product up to xx€” has a KGR of 0,02 (0/0)  
    Should I go for that? Can it rank? Even with the ominous zero volume..

  • AG

    Hi Doug,

    Thanks for sharing KGR formula!

    Is there any free tool instead of Keywords Everywhere? That can be added as an extension in chrome.


  • Samsul Huda

    Thanks for sharing KGR formula!
    I have used it for my niche site and got the result withing one weak….Now my content live on 2nd page.

    Very effective formula …