Weekly SEO and Marketing Recap: Sept 30, 2026

Hey friend,

Some weeks feel like building. This one feels like bracing. If your Slack has been a wall of red arrows since Friday, you're not the only one refreshing trackers at midnight.

Worth holding onto: the people who come out ahead aren't the fastest reactors. They're the ones who waited, then moved with a reason. Grab a coffee. Nothing below needs a decision in the next ten minutes. ☕

⚡ Quick Hits

Three things worth 30 seconds of your attention:

• Google's spam update is still mid-rollout — resist the urge to "fix" anything until the two weeks are up

• ChatGPT Ads now live in 60+ countries, and the cheap-CTR markets are the ones nobody's bidding in yet

• Amazon's five-year purchase dataset is free only through the end of 2026, so pull your LTV queries now

🔍 Google Is Rewriting The SERP Rules Again

Google’s September 2026 Spam Update Just Had Its Ugliest Weekend Yet

Trackers including Semrush Sensor, Mozcast, Algoroo and Sistrix all spiked hard on Sept 26-27, and with only five days gone in a two-week rollout, the damage report is far from final.

AI Overviews Citations Are Moving To The Bottom — And They Look Way More Clickable

Glenn Gabe spotted a desktop test that kills the right-side citation bar entirely and stacks sources under the answer behind a “show all” toggle — the third variation Google has trialed since September 2025.

Google Quietly Rebuilt Its Merchant Center API Doc From Scratch

The page went from “API access to Merchant Center” to a full technical rewrite with setup and authentication steps, plus callouts for exclusive perks like Product Studio and direct account notifications.

💰 Where The Ad Money Is Actually Working

ChatGPT Ads Get 3x Better CTR In Brazil Than In The US

Graphite’s Similarweb-panel report clocks Brazil at 1.91% and Mexico at 1.55%, while the five English markets bunch between 0.60% and 0.75% — and only Jotform and Resume.io held a top-10 impression share across all 20 tracked weeks.

Amazon’s 5-Year Purchase Dataset Is Free Until End Of 2026 — Here’s What To Build With It

The Amazon Retail Purchases dataset breaks AMC’s old 13-month ceiling, making true LTV, gateway-product mapping, longer repeat-purchase windows and lapsed-customer winback audiences possible for the first time.

Your B2B Buyers Decided 124 Days Before Your CRM Noticed

Factors.ai analyzed 50,000+ closed deals worth $5B and found reaching six or more contacts pre-deal lifts win rates 17 points, while pairing paid with organic LinkedIn activity delivers 2.4x higher win rates than ads alone.

🛠️ Playbooks, Prompts & Platform Shifts

The SEO Report Your C-Suite Will Actually Read

Covers GSC’s 16-month data limit and how to back up past it, ChatGPT-generated regex for query filtering, AI Overview tracking inside Ahrefs, brand vs non-brand segmentation, and tying revenue to keyword movement.

X Will Now Tell You Which Government Got Your Post Hidden

The expanded Under The Hood report names the country behind any legal withholding demand, open to accounts at least a year old with 10+ posts in the prior month.

Fact-Checking Your AI Output Is No Longer Good Enough

The argument: swap fact-checking for “ground-truthing” the underlying inference, and pull PR, content and analytics into the same room — because departmental inconsistency is now a citation risk with AI systems.

Claude Opus 5.5 Ignores Your Old Prompts — Anthropic Explains Why

Thinking is always on with effort defaulting to medium instead of high, “think carefully” lines now just slow chat replies down, and there’s a tag-based method for marking pasted text to blunt prompt injection.

🎟️ Event Spotlight

FT Networking (Fridman Events) — Bangkok, November 7–11, 2026

Skip the booth small talk. Fridman Events runs a closed networking format around Affiliate World Bangkok, where a few hundred owners and C-level operators live in one hotel for five days and four nights while thousands crowd the main conference floor.

• 1,200 guests, 450+ residents, 200+ companies

• 25+ immersive zones and 10+ business meetups

• Verticals covered: nutra, finance, betting, crypto, dating, SaaS, gambling, e-commerce

• Private dinners, workouts, breakfasts and personal concierge service

Next stops after Bangkok: Dubai (SIGMA, January 2027), Yerevan (MAC, April), Rome (SIGMA, October).

👉 Join the Fridman community on Telegram

✅ Do This Before Friday

Pick one. Not all four.

• Screenshot your AI Overview citation positions today — if the bottom-stacked test rolls out wide, you'll want a before picture

• Export your Search Console data past the 16-month wall into a sheet you actually own

• Count how many contacts you touched on your last five closed-won deals. Under six? There's your 17-point gap

• Run one AI-drafted piece through the "what would make this conclusion wrong" test instead of a spellcheck

🛡️ Tool Of The Week - NodeMaven

Clean Proxies Built For Accounts That Keep Getting Flagged

• 30M+ residential IPs, 250K mobile IPs, 195+ locations

• 95% clean IP rate, 99.54% average success rate, <0.6s speed

• Sticky sessions up to 7 days, ZIP-level targeting, traffic rollover

• Static ISP proxies that hold one IP for weeks, plus usage cashback

• Integrates with Dolphin Anty, AdsPower, GeeLark; crypto and card payments accepted

Use code AFFMAVENPLUS for +35% EXTRA traffic on any purchased plan.

📊 Poll Of The Week

Did the September spam update touch your sites?

Wiped out · Noticeable dip · Flat · Went up (don't brag) · Still checking

💬 One Line Worth Stealing

"Inconsistency used to be a minor annoyance. Now it's a citation risk."

Your press release, your landing page and your LinkedIn bio are all feeding the same models. When they disagree, the model picks someone else.

🧠 SEO Report Glow-Up