Hello hanhorde and welcome to WebmasterWorld [webmasterworld.com]

Have you gone through all your pages and looked for missing ads? That could be the reason for the drop in revenue.

Adsense is in the process of evaluating each page with its Mediapartners-Google bot as part of the upcoming Initial Better Ads Standards [betterads.org] compliance and until each page is evaluated, ad space may not get filled.

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Hi. Thank you.

And how it could be solved this ? Should I wait for google evaluation or what ?

Thanks !

If your pages are missing ads, it may help to visit them all using the Chrome browser. There have been several members, including myself, that have seen the Mediapartners-Google bot in our logs almost immediately after we visited those pages. Very soon after that the ads came back.

I dont think that this is the problem. I am visiting my pages everyday. There must be something else i dont know.

Or what do you mean by missing ads? Is it blank ads?

Blank ads i had since 2009 and i was making 1000 eur / month but since arround 2014 everything changed....i was making 800 then 600, in 2017 i reached only 300 / month and since october 2017 i was dropped to 150-200 eur / month

It is not good this. It has to be something else.

Is your site HTTPS?

Is your site responsive?

It is responsive but not https. Could it be this the problem? the https?

Since 01 january i am making 1.5-2.5 eur / day at 2000-3000 visitors. Unbelivable low!

As the internet moves to HTTPS, many users may start to distrust unsecure pages. How has your traffic been? Same number of daily page loads?

I'm not sure, but ad inventory may not be as robust for unsecure pages either.

BTW - ad revenue was also much higher for many of us a few years ago.

Thank you. I will made today the changes to https.

50-80% drops are not going to be due to not having HTTPS. Technical issues on your end aside, it's more likely to be something like smart-pricing or, less likely, significant changes in your industry. In case of smart-pricing [support.google.com], the issue is the quality of your traffic.

Diagnosing and treating revenue fluctuations (Part I) [adsense.googleblog.com]
Diagnosing and treating revenue fluctuations (Part II) [adsense.googleblog.com]

Thank you.

Should I place synchronus or asynchronus ads? Which are the best?

The asynchronous ads were introduced to help speed up loading for mobile users on responsive sites so you will help visitors see your site a little faster with those ads. They use just one script inserted before the </head> and then you don't need to post the script with each ad.

They use just one script inserted before the </head>

No? All ad units are now async by default. Just use the code, there is nothing to ad.

Asynchronously loaded ads tend to work better for users, as other content is not blocked from loading while the ads are being retrieved. It's generally a better experience. In some cases, synchronous ads might work better from a revenue perspective, at least short-term, but for the wrong reasons (users may be exposed to ads sooner). But this, too, is unlikely to have a significant effect on your earnings. I think you just need to take a hard look at your content and traffic, and try to see things from an advertiser's perspective.

Surely async ads will be slower to load as they are downloaded at the same time as page content, instead of the page content having to wait for the js to sownload.
However, for overall performance of the site I would have all js loading async otherwise you will lose visitors while they wait for your page page content to appear.

Another reason for the drop is the move that Google has made to retain traffic that is likely to convert through the use of the 'knowledge graph' etc. Previously users would have been directed to a website, nowadays those websites have all been demoted to page 2 and replaced with the answers on the right-hand side.

At least that's what's happened in my sector.

I'd like to be able to say that you can replace the traffic with social media, however that hasn't worked for me and I've found that the type of traffic that I've received from Social Media just doesn't convert.

glitterball is correct. Google has been retaining users instead of sending them to 3rd party websites. Rich snippets, Knowledge Graph, ads blocking results all contribute to traffic declines. This is the new reality and it will get worse for us.

I'm pretty sure hanhorde was referring to a drop in revenue relative to the number of visitors, so let's try to stay on that topic.

If your traffic declines for whatever reason, it generally follows that your AdSense revenue will, too.

I'm pretty sure hanhorde was referring to a drop in revenue relative to the number of visitors, so let's try to stay on that topic.

If your traffic declines for whatever reason, it generally follows that your AdSense revenue will, too.

That was part of the point that I was making: Google is keeping the traffic that converts to clicks on their own web properties. Therefore webmasters, as well as getting less traffic, will get worse performing traffic that is unlikely to click on Ads.

That's a blanket statement, and Google "keeping the traffic" is the subject of many other threads, just not this one.