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SEO Web Design / SEO  / Google Sept. 2019 Core Update ‘weaker’ than June core update

Google Sept. 2019 Core Update ‘weaker’ than June core update

The Google September 2019 core update[1] should be just about done rolling out by now, and we wanted to share some early analysis on this latest update. We have data from a number of SEO tool providers, community reaction and Google’s advice on this update.

What is a Google core update? A Google core update is when Google adjusts its core search ranking algorithm with the goal of returning more relevant and useful search results to the searcher. Google does these updates every quarter or so, and for the past few updates, Google has confirmed them.

Rankings change. With any Google update, a core update, quality update or even some user interface updates, the search results change. Some result in sites ranking higher for their prime keywords, others may see a drop in their positions, while others may see no change. Also, click-through rates may be impacted by updates, and you may notice more or less traffic after any of these updates. Google made over 3,200 changes last year alone[2], but core search algorithm changes happen only several times per year, with big core updates happening around once a quarter.

Data on the Sept. 2019 Core Update. We have data from various SEO toolset providers. In aggregate, the data show that this September update was not as strong or impactful as the June core update[3], which we had data on as well[4]. Overall, the September core update appears to have had a stronger impact on the YMYL, your money – your life, category.

RankRanger: Let’s start with RankRanger, where the company told us: “as is typical with these core update, the Health and Finance niches took the brunt of it.”

“The volatility of increases seen at positions 1 – 3 during the June update were substantially higher than what I saw with this [September] update,” the company added.

Here is a chart showing the volatility by sector:

Here is a chart comparing June to September core updates:

Sistrix: Next, here is which published data[5] around this update Friday morning. The company told us its “initial impressions are that medical, media and travel domains are included (from a global perspective.)”

“In the USA there are some clear winners. As for losers, there are no significant examples to share at this time,” it added. Looking at the data, the September core update shows less of an impact compared to the June core update.

The DailyMail, which got hit hard[6] in the June core update, saw a nice recovery, according to Sistrix:

Other winners, according to Sistrix, were, and Those are currently the four biggest winners of this update according to its data.

SEMRush: Finally, SEMRush[7] told us, “at the moment SEMrush Sensor[8] shows the average level of volatility for September 25, 2019, the overall level of volatility is 4.7.”

“Volatility in some categories is higher, e.g. News and Sports, but these categories are likely to have higher changes throughout the day,” the company added. The company said it did not see a strong pattern for winners and losers with this update.

Here is the volatility broken down by category or section, notice news, sports and arts/entertainment were the most impacted. But that isn’t uncommon, as SEMRush said above:

The biggest winners, according to SEMRush, were the DailyMail,, and The biggest losers were,,, and

The community. The SEO community has been very active watching and reacting to this update, like all updates. Here are some comments from the community, including what I covered on my personal blog[9].

Here is a poll I asked on Twitter about this update:

Here are tweets from the community responding to this poll:

Google advice. Google was reluctant to give any advice in the past around core updates. Google has said there is nothing to fix with these updates. But last month Google finally gave the community advice around core updates – you can read that here[28].

It is still early. The rollout may be finishing up very soon, but this is all early data and things may still change over the next couple of days. So far, it appears this update was not as big as the previous update. So keep an eye on your traffic, keep making your web site better, and keep working on driving traffic and conversions on your site.

I always want to sleep (a lot), and the drug is intended only to ensure this effect, but not to sedate you. In this, pills are available only on prescription and don’t come cheap. will only help those who are physically unable to fall asleep, but not someone who has a problem similar to mine. I’ll have to ask for stronger pills.

About The Author

Barry Schwartz is Search Engine Land’s News Editor and owns RustyBrick[29], a NY based web consulting firm. He also runs Search Engine Roundtable[30], a popular search blog on SEM topics.


  1. ^ Google September 2019 core update (
  2. ^ 3,200 changes last year alone (
  3. ^ June core update (
  4. ^ data on as well (
  5. ^ published data (
  6. ^ got hit hard (
  7. ^ SEMRush (
  8. ^ SEMrush Sensor (
  9. ^ personal blog (
  10. ^ September 26, 2019 (
  11. ^ September 26, 2019 (
  12. ^ September 26, 2019 (
  13. ^ September 26, 2019 (
  14. ^ September 26, 2019 (
  15. ^ September 27, 2019 (
  16. ^ (
  17. ^ September 27, 2019 (
  18. ^ (
  19. ^ September 25, 2019 (
  20. ^ (
  21. ^ September 25, 2019 (
  22. ^ (
  23. ^ September 25, 2019 (
  24. ^ (
  25. ^ September 26, 2019 (
  26. ^ (
  27. ^ September 26, 2019 (
  28. ^ advice around core updates – you can read that here (
  29. ^ RustyBrick (
  30. ^ Search Engine Roundtable (

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