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In my blog I publish articles with date below under it.

My questions are:

  1. Using dates will have positive impact or negative impact?

  2. After few years of publishing the post, since my post age is old will it remain in same position of search results or it will go down?

  3. Finally, should I use published dates or not?

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5 Answers 5

up vote 3 down vote accepted

Here are my answers to your questions:

  1. Displaying published dates below your articles is not taken into account for SEO. The date taken in consideration for search engines is the indexing date.
  2. If your article is old and is not updated by adding new content (or optionally getting new backlinks), it will go down in search results (especially with Google who likes fresh content). That's why I encourage you to update your old articles content and let open comments on them to get content even more.
  3. Refer to point 1.
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You will see a boost in ranks at first but later on it will have decline in search results. However it can be reduced by giving quality consistent links to that article URL. The search results has more or less nothing to do with the date as Google consider its own indexing date while ranking.

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As Zistoloen mentioned above, displaying dates of the blog article won't affect your website in SEO point of view. Basically older posts always have lesser priority in Google Search results. But if your article is more perfect and more user readable then it will be in the 1st page of Google result. Additionally there is an advantage in displaying your article date that is, if you have site blog, then there is a possibility to show your article in Google News. For that you have to display the date and time of the article you published. So displaying the date of the article has more benefits.

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It is not very your website to show date in the article. When you post your article content should be more unique and interesting for users' interest it will help you in google search engine. Google will consider your quality content so try to more focus on content and quality.

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Most of the comments on this are actually from 2013 so I thought I'd provide an updated perspective.

I just did an experiment on this. Here's what I found:

  1. Published blog post date (and not necessarily index date) definitely affect SEO
  2. If the published date is very recent, you may see a significant increase in traffic (I saw 45% boost sitewide - some pages were +100%)
  3. If the published date is far in the past, you might see a decrease in traffic (compared with no post dates at all)
  4. Much of the traffic attributed to direct is actually organic (as the Groupon folks recently published)

Here's the methodology:

We switched all our blog post dates to Aug 8, 2014. A week later, organic traffic was up 45% and direct traffic was up 62%. Here's what happened…

We launched a new website design a few months ago. Somewhere along the line we forgot to remove the placeholder dates from the blog templates and so we launched with Aug 8, 2014 as the date for every blog post.

A week or so later we noticed traffic was trending much higher than usual. After some digging, I realized our post dates were all showing Aug 8, 2014.

Could the more recent post dates on all of our blog posts result in a significant increase in traffic? I wanted to know so I did a simple experiment. I changed our blog post dates back to the real dates for a week or so. Then I switched them all back to a recent date. Then back to the real dates again.

Here's a shot from Google Analytics, all traffic, plotted daily. I've plotted all the way back to March 2014 here to show how traffic was trending up, but steadily, until this test started.

post date traffic change

Obviously something squirrelly starts happening right around the mid August when we launched the new site.

That's a daily plot and, while you can see something going on, it's not quite obvious what's happening.

Here's traffic over the same time period, plotted weekly. The red lines mark when blog post dates were changed (see below for more explanation on this).

enter image description here

Method

The following is a step-by-step walkthrough of what we changed and what the effect was.

08/13/2014 (Wed)

Launched our new responsive website. All blog post dates were inadvertently set to August 8th, 2014 on single post and blog index templates.

Shortly after I noticed traffic was up significantly and just guessed that it might be the responsive layout we implemented, but I had my doubts.

In fact, for the week after the dates were changed (Wed, 8/13 – Wed, 8/20), overall site traffic was up 45% compared with the week prior to the change (Tue, 8/5 – Tue, 8/12).

sessions increased

Organic traffic for Wed, 8/13 – Wed, 8/20 compared to Tue, 8/5 – Tue, 8/12 Interestingly, direct traffic was up 62% over this same period. We'll see that same trend occur over the next 3 test periods. This jibes with Groupon's conclusion that up to 60% of direct traffic is actually organic.

direct-traffic-up-1

Direct traffic for Wed, 8/13 – Wed, 8/20 compared to Tue, 8/5 – Tue, 8/12 08/22/2014 (Fri)

I noticed the post date error and corrected it. All blog post dates are now the real dates they were published.

A few days later I noticed traffic was down significantly and thought it must have something to do with the blog post dates.

Specifically, traffic was down 31% for the week after the change (8/22 – 8/29 compared with 8/14 – 8/21).

sessions-decreased-after-date-change

All traffic Fri, 8/22 – Fri, 8/29 compared with Thu, 8/14 – Thu, 8/21 And here's direct traffic over the same time period.

direct-traffic-down Direct traffic for Fri, 8/22 – Fri, 8/29 compared to Thu, 8/14 – Thu, 8/21 09/02/2014 (Tue)

I switched all blog post dates to Sept 1, 2014. I realize this is different from the Aug 8 date that was set when the new site launched. Don't ask why I did that; I didn't realize that mistake until writing this. That said, it didn't affect the result of this experiment so who cares.

Over the following week, traffic was up again, this time by 43% (9/2 – 9/9 compared with 8/25 – 9/1).

enter image description here

And here's direct traffic over the same time period.

direct-traffic-up-2

Direct traffic for Tue, 9/2 – Tue, 9/9 compared to Mon, 8/25 – Mon, 9/1 09/25/2014 (Thu)

I switched the blog post dates back to their real dates.

Traffic was down over the following week by 41% (9/25 – 10/2 compared with 9/17 – 9/24).traffic-down-on-date-change-again

And direct traffic was down again as well.

direct-traffic-down-2

Direct traffic for Thu, 9/25 – Thu, 10/2 compared to Wed, 9/17 – Wed, 9/24 Will the traffic increase persist over time?

Does the increase in traffic persist over time or does it drop off as the post dates become further and further in the past?

Based on this experiment I assumed it would drop off, so I exported traffic numbers for every blog post and organized them by post date to find out.

It took forever. Unfortunately I didn't find anything useful. I'm not saying there couldn't be a correlation, there just wasn't enough traffic to each individual blog post in the short 1 -2 week cycle of this experiment to find anything significant.

Was the traffic increase due to increased CTR or better position?

I thought it might be possible that a more recent publish date shown in the SERPs would result in a higher CTR and so more clicks might be the major cause of the traffic fluctuations.

So I pulled up Google webmaster tools to see if impressions changed during the test periods. As you can see below, it certainly looks like they did. That suggests to me the increase in traffic wasn't entirely due to higher in-SERP CTR – although it certainly could have been part of it.

webmaster-tools-impressions

What's interesting about this is Google seems to have changed visibility for our blog posts based solely on the publicly visible post date, and with very little delay.

Were some traffic segments affected differently?

I reviewed traffic numbers by demographics, device, browser, and network and did not find any evidence that some of these segments were affected and others weren't.

Unanswered questions

It's clear that Google is sending us more or less organic search traffic based entirely on publish dates shown on each blog post. But there are still some unanswered questions:

Do Bing, Yahoo, and other search engines do the same? I don't know the answer to that; I spot checked Bing & Yahoo and the absolute numbers aren't large enough to be significant. Are any other factors at play? Would such a change be seen on all websites? Does authority of the site matter? Does the recency of links to a particular post have any affect? I would say a lot of these factors might come into play. What would the effect be of removing post dates entirely? I don't know, I'm testing that now. Other posts about this

During my research I found two other blog posts on this topic.

This one from Mack Collier, in which he actually saw a drop in traffic after he added blog post dates where there were none before.

And this one where they saw a 40% drop in traffic after adding blog post dates where there were none before.

It's important to note that, in both of these examples, post dates were not originally present. After being added they reported seeing a drop in traffic. I think that's an important distinction from our blog, where post dates were always present, and updating them to newer dates resulted in a substantial traffic increase.

Key takeaways

Based on my own testing and the observations of the two blogs mentioned earlier, it appears that more recent post dates affect traffic positively and post dates further in the past might actually affect traffic negatively when compared with no post dates at all.

In other words, the graph might look something like this:

post-date-relative-traffic-chart-1

This suggests perhaps the maximum organic traffic can be had by showing post dates on recent posts and then removing them entirely as the post becomes more than X days old.

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