The Google September 2023 helpful content update started around 4:20pm ET on 14 September 2023 and completed on 28 September 2023, a rollout of 13 days and 11 hours. It shipped an improved helpful content classifier alongside revised guidance, and many small and independent publishers reported losing roughly 40% to over 80% of their search visibility. This guide explains what changed, how to confirm it was this update that hit you, and a realistic recovery plan, given that most affected sites had still not recovered a year later.
It is the most searched entry in my full list of Google algorithm updates, and the one I am asked about most by site owners, so I have kept this page as practical as I can.
| Detail | Information |
|---|---|
| Update name | Google September 2023 helpful content update |
| Type | Helpful content (site-wide classifier) |
| Rollout started | 14 September 2023 (around 4:20pm ET) |
| Rollout finished | 28 September 2023 |
| Rollout length | 13 days 11 hours |
| Confirmed by Google | Yes, announced and completed on the Search Status Dashboard |
| Official source | Google Search Status Dashboard incident |
What the September 2023 helpful content update changed
Google’s announcement was short: the update “is rolling out with an improved classifier”. Google did not say what was improved. The helpful content classifier is the part of Google’s systems that identifies content made mainly to rank in search engines rather than to help people, and it applied a site-wide signal. That means a site with a relatively high proportion of unhelpful content could see all its pages held back, including its good ones.
Alongside the classifier, Google revised its written guidance on helpful content. Those changes are the best clues we have to what Google was looking for.
1. “Written by people” was removed
The guidance previously described “helpful content written by people, for people”. It became “helpful content created for people in search results”. The reading at the time was that content does not need to be written entirely by humans to be considered helpful. What matters is whether it helps the reader, not how it was produced. That cuts both ways: AI-assisted content is not automatically a problem, but neither is human-written content automatically safe.
2. Third-party content can affect the whole site
Google added guidance that third-party content hosted on a site’s main domain or subdomains can affect site-wide signals. The context was sites renting out subfolders or subdomains to outside companies, for example coupon sections or product review sections run by someone else on a news site’s domain. Gary Illyes of Google said at the time that some sites “rent out” subdomains or subdirectories, and that “The only reason the owners of these shady (?) micro-sites rent the sub-spaces is to manipulate search results.” Search Engine Land noted that this section was a documentation change, and that it was not then part of the helpful content algorithm.
Google’s advice was that largely independent third-party content, unrelated to the main site’s purpose, should be blocked from indexing or moved.
3. Faking freshness was called out
Two questions were added to Google’s self-assessment list:
- Are you changing the date of pages to make them seem fresh when the content has not substantially changed?
- Are you adding a lot of new content or removing a lot of older content mainly because you think it will help rankings by making the site seem fresh?
Both were aimed at common SEO habits: “Updated for 2023” titles on unchanged articles, and mass publishing or deleting to look active.
4. Experts could review, not only write
The expertise question changed to ask whether content is “written or reviewed by an expert or enthusiast who demonstrably knows the topic well”. Note “enthusiast”: Google did not limit this to credentialled professionals.
Google also said its separate work on surfacing personal and expert perspectives was ongoing and “not part of this particular update.”
Timeline
| Date | What happened |
|---|---|
| 25 August to 9 September 2022 | First helpful content update, English only |
| 5 December 2022 to 12 January 2023 | Helpful content system expanded to all languages |
| 22 August to 7 September 2023 | August 2023 core update |
| 14 September 2023, around 4:20pm ET | September 2023 helpful content update begins, with revised guidance |
| 28 September 2023 | Rollout complete |
| October and November 2023 | Two further core updates and an October spam update |
| March 2024 | Helpful content folded into Google’s core ranking systems; no more standalone updates |
| August 2024 | Core update framed as a response to creator feedback (reported); most affected sites saw no meaningful recovery |
| March 2025 | Core update; affected sites cautioned not to expect substantial recovery (reported) |
| June 2025 | Core update; some partial recoveries reported, not universal |
Who was affected
The pattern reported across the industry was clear: many small and independent publishers, especially affiliate, niche, review and travel sites, reported visibility drops of roughly 40% to over 80%. Several high-profile public complaints followed from site owners who felt their content was genuinely useful. Google named no sites.
Most of these sites had not recovered by the August 2024 core update. Google described that update as aiming to reward “a range of high quality sites, including small or independent sites that are creating useful, original content”, but reported recoveries were partial and patchy.
I mention this not to discourage anyone, but because the honest starting point matters. If you were hit hard in September 2023, you are dealing with one of the hardest situations in SEO, and anyone promising a fast fix is not being straight with you.
How to tell if the September 2023 helpful content update hit your site
Because the August core update finished only a week before this one started, and more updates followed within weeks, dating your drop accurately is the first and most important step.
Step 1: Find the day the decline started
In Search Console, open the Performance report, set the range to 1 August to 30 November 2023 and view daily clicks. Mark these dates: 22 August, 7 September, 14 September, 28 September, 4 and 5 October, and 2 November.
| Pattern you see | What it suggests |
|---|---|
| Decline starts 22 August to 7 September | August core update, not helpful content |
| Stable until 14 September, then a steady slide to 28 September | September 2023 helpful content update |
| Drop in both windows | Both updates; treat as a site-wide quality issue |
| Stable until October or November | A later core or spam update |
Step 2: Compare clean windows
Compare 31 August to 13 September 2023 with 29 September to 3 October 2023. The after window is short because the October updates started on 4 October, but it is the cleanest view available. Compare the same weeks in 2022 to rule out seasonality, particularly for travel sites, where September is often a shoulder season.
Step 3: Check whether the loss was site-wide
This is the signature of the helpful content system. Filter the Pages report and look at your best content, the pages you are proudest of. If even those fell by similar percentages, a site-wide signal is the most likely explanation. If only one section fell, look more closely at that section first.
Step 4: Rule out other causes
- Manual actions and Security issues in Search Console (helpful content demotions do not show there)
- Indexing changes: did the number of indexed pages drop?
- Lost SERP features, such as featured snippets
- Template, plugin or tracking changes made in September 2023
How to recover from the September 2023 helpful content update
Google’s direct advice was that sites with unhelpful content should “fix or remove any that seems unhelpful”, and that sites producing helpful content did not need to do anything. In practice, most sites I see that were hit fall somewhere in between. Here is the plan I follow, in order.
Step 1: Build a full content inventory
Export every indexable URL with 16 months of clicks and impressions from Search Console, plus backlinks and the publication and last-substantial-update dates. A spreadsheet is fine. You cannot judge a site-wide signal without seeing the whole site.
Step 2: Ask why each page exists
For each page, answer one question honestly: would we have published this if search engines did not exist? Pages written only because a keyword tool showed volume, pages on topics outside your site’s focus, and pages that summarise other sites without adding anything are the ones the classifier was built to find.
Step 3: Decide keep, improve, merge or remove
| Page situation | Action |
|---|---|
| Useful, first-hand, on-topic | Keep; improve presentation if needed |
| On-topic but generic | Rewrite with your own experience, examples and evidence |
| Several thin pages on the same question | Merge into one page and redirect the rest |
| Off-topic, no traffic, no links | Remove (404 or 410) or noindex |
| Third-party or rented sections | Noindex, move to a separate domain, or remove |
Be decisive. Sites that delete a few dozen of their weakest pages out of several hundred rarely change how a site-wide signal sees them. But do not delete for the sake of it either; Google’s new self-assessment question warned against removing large amounts of content just to seem fresh. The test is helpfulness, not volume.
Step 4: Make experience visible
This is where many hit sites were weakest. Readers, and Google, need to see why you are worth listening to.
- Real author pages explaining relevant experience, linked from every article
- Your own photos, screenshots, measurements and notes, not stock images
- Specific details only someone who has done the thing would know
- Where an expert reviewed the content, say who and when
Step 5: Stop faking freshness
Remove automatic “last updated” dates that change without real edits, and drop the current year from titles unless the content genuinely changes each year. When you update a page, update the substance.
Step 6: Review AI-assisted and scaled content
AI use was not the issue in itself; Google removed “written by people” from its guidance. But large batches of AI-drafted articles published without real editing or original input usually look exactly like the search-engine-first content the classifier targets. Edit them properly, merge them or remove them.
Step 7: Fix the reading experience
Google’s helpful content guidance also asks about presentation: whether ads distract from the content and whether pages work well on mobile. Many affiliate and travel sites had layouts where the answer sat below several ad units and a long preamble. Put the answer near the top and reduce intrusive ads. My on-page optimisation service covers template layout as well as copy.
Step 8: Handle third-party content
If you host coupon sections, sponsored review sections or partner content that is largely independent of your site, block it from indexing or move it off your domain, as Google advised.
Step 9: Check technical foundations
Removing and merging hundreds of pages needs careful redirects, updated internal links and a clean XML sitemap. Do this badly and you create new problems. A technical SEO review before and after the clean-up is worth the time.
Step 10: Set realistic expectations
Since March 2024 there are no standalone helpful content updates; recovery is assessed through core updates. Reported outcomes have been sobering: most sites hit in September 2023 saw no meaningful recovery in August 2024 or March 2025, and some saw partial recoveries in June 2025. Plan the clean-up as a long-term rebuild, and build traffic sources you control, such as email lists and direct audiences, in parallel.
Is it still relevant today?
Yes, more than most past updates. The September 2023 update was the last standalone helpful content update, but the system did not go away. In March 2024 Google folded it into its core ranking systems and said helpful content was no longer one signal or system. So the guidance revised in September 2023, on third-party content, faked freshness, expertise and content created for people, still describes what core updates reward and penalise. If you were hit in 2023, every core update since has been a chance to be reassessed.
Frequently asked questions
When did the September 2023 helpful content update start and end?
It started around 4:20pm ET on 14 September 2023 and completed on 28 September 2023, 13 days and 11 hours later.
Can you recover from the September 2023 helpful content update?
Some sites have partially recovered, with partial recoveries reported around the June 2025 core update. Most affected sites did not see meaningful recovery in August 2024 or March 2025. Recovery depends on substantial site-wide improvement and is assessed through core updates, so it can take a long time.
Did the September 2023 helpful content update target AI content?
Not specifically. Google actually removed “written by people” from its guidance, focusing on whether content is created for people. Unedited AI content published at scale can still look unhelpful, which is what the classifier assesses.
Will there be another helpful content update?
Not as a standalone update. In March 2024 Google made helpful content part of its core ranking systems, so changes now come through core updates.
Should I delete content after the September 2023 helpful content update?
Google advised fixing or removing content that seems unhelpful. Delete or noindex pages that do not serve your audience, but do not mass-delete just to look fresh; Google’s guidance specifically warns against that.
Sources
- Google Search Status Dashboard
- Google Search Central: creating helpful content
- Search Engine Land: what’s new with the helpful content update
- Keywords Everywhere
If your site lost traffic between 14 and 28 September 2023 and you want an honest view of whether recovery is realistic, request a free audit. My SEO audit service includes the full content inventory described above, with a keep, improve, merge or remove decision for every URL.
More Google algorithm updates
- Previous update: August 2023 Core Update (22 Aug 2023)
- Next update: October 2023 Spam Update (4 Oct 2023)
Other helpful content updates:
- Helpful Content Update (December 2022) (5 Dec 2022)
- Helpful Content Update (August 2022) (25 Aug 2022)