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AI 资讯

Local Business Lead Scrapers on Apify Compared (September 2026)

Most local business lead scrapers on Apify are Google Maps scrapers with a website-crawling step bolted on. lukaskrivka/google-maps-with-contact-details is the most used (87,957 users, 4.63 stars). flash_scraper/local-business-leads is the outlier: it discovers businesses on OpenStreetMap instead of Google Maps, and includes MX email verification in its $3 per 1,000. Every figure below was read from Apify's public Store API ( GET /v2/store ) on 2026-09-05 — including every user count, so they are all on the same footing. The per-actor endpoint ( GET /v2/acts/<id> ) can read one higher: it gives flash_scraper/local-business-leads 33 rather than 32, and code-node-tools 33 as well. Prices, users and ratings change; the Pricing tab on each actor page is authoritative. Disclosure: I publish flash_scraper/local-business-leads , one of the actors compared here. Its limits are listed in the same detail as everyone else's, including the one that will disqualify it for many buyers. How prices are normalised These actors bill per event, and the events differ in kind, which makes headline prices misleading. Some charge per place found. Some charge separately for the website crawl that actually produces the email. Some charge again to verify that the email is deliverable. The table lists the primary per-result event multiplied by 1,000 at the free-plan rate , then names the add-on events, because a $5 per 1,000 place price with a $100 per 1,000 email-verification add-on is not a $5 tool. Paid Apify plans get tiered discounts on several of these actors, ours included — and on the add-on events the discount can be enormous. lukaskrivka's three $100-per-1,000 add-ons fall to $4.00 (email verification), $7.50 (lead enrichment) and $10.00 (social-profile enrichment) per 1,000 on Bronze, and lower again above it (Store pricing record read 2026-09-05). Our own free-plan-to-Diamond spread is about 30 percent. So if you are on a paid plan, re-read every figure below off the Pricing tab:

2026-09-06 原文 →
AI 资讯

Password Reset Email Deliverability for Custom Domain Provider (and Bounce Evidence Limits)

Short answer: for marketplace password recovery, choose the delivery setup that can prove what happened to every message, then keep the suppression decision in your own system. Inbox placement matters, but an evidence trail is the decision axis. A custom sending domain with aligned DKIM and SPF, bounce events, and exportable history gives an auditor something better than a green dashboard. The decision note: which delivery shape leaves evidence? Delivery shape Evidence you can normally retain Best fit Trade-off Managed transactional service Webhooks, message ids, DNS guidance Teams that need mailbox feedback quickly Retention and event detail vary by contract Cloud notification primitive Basic accepted or failed status Small systems with an existing mail pipeline Bounce reason and suppression semantics may be thin Self-hosted MTA Full local logs and routing policy Data-residency teams with on-call capacity Reputation, feedback loops, and maintenance become yours My default is the first shape, with a local ledger beside it. The transport can change; the account-recovery policy should not. That split also makes a provider review concrete: ask for a sample event export, its retention period, and the fields that connect a bounce to a reset request. The catch is operational capacity. A self-hosted stack is not suitable for a marketplace that cannot staff reputation incidents, while a managed service is a poor fit when its export cannot satisfy your retention or residency rules. Keep the cloud primitive for low-volume internal tools, not as an automatic answer for customer recovery. What must a password reset email evidence trail capture? Begin with the reset request. Store a hash of a random, single-use token, its expiry, the account identifier, and the request time. OWASP recommends a consistent response for existing and non-existing accounts, rate limiting, and invalidation after use; those controls prevent delivery telemetry from becoming an account-enumeration signal

2026-09-04 原文 →
AI 资讯

Polymarket Mean Reversion: Build a Python Trading Bot

Build a Polymarket mean reversion bot in Python using price history, z-scores, order-book data, execution controls, and production risk management. Introduction A Polymarket mean reversion strategy is based on a simple quantitative hypothesis: when an outcome-token price moves unusually far from its recent statistical range, it may eventually move back toward its local mean. The difficult part is not calculating a moving average. The difficult part is determining whether the deviation is actually temporary—or whether new information has permanently changed the market's fair probability. For a trading bot, that means the strategy needs three separate components: A statistical signal. An executable market-data layer. An execution and risk-management system. Polymarket's current API exposes order-book snapshots and historical price data, making it possible to build the research layer directly from market data. ([Polymarket Documentation][1]) About the Author Bo$onaX I write about Polymarket trading bots, prediction-market infrastructure, algorithmic trading, Python automation, Web3 development, and quantitative strategies. Contact: Github: github.com/n9xdev/poly-alpha-lab Telegram: t.me/bosonax Youtube: youtube.com/@bosonax X: x.com/xxniiinxx Gmail: mailto: dylandevera91928@gmail.com What You'll Learn How mean reversion applies to prediction-market prices How to calculate a rolling z-score How to filter false signals How to incorporate the CLOB order book How to structure a Python bot Why fees, spread, liquidity and adverse selection matter How to backtest and paper trade the strategy 1. The Mean-Reversion Model Let (P_t) represent the price of an outcome token. Calculate a rolling mean: { mu_t = SMA(P_{t-n+1},...,P_t) } and rolling standard deviation: { sigma_t = Std(P_{t-n+1},...,P_t) } Then calculate: { Z_t = \frac{P_t-\mu_t}{\sigma_t} } A basic strategy might define: Z < -2: unusually low price → investigate a long Z > +2: unusually high price → investigate an exit

2026-09-02 原文 →
AI 资讯

I Built Unmuse — An AI Tool That Turns Rough Ideas Into Content

I’ve been building Unmuse because I kept noticing a simple problem: Having an idea is easy. Turning that idea into something actually worth posting is the hard part. You can have a thought like: “People keep waiting for the perfect time to start.” But turning that rough thought into a strong hook, script, or caption can take way more effort than it should. So I built Unmuse. You give it the rough thought in your head, choose what you want to create, and Unmuse turns it into a usable piece of content. Right now, it’s an early MVP. I’m building it mostly by myself and plan to add a lot more features as I get feedback and traction. If you create content, I'd genuinely love to hear: What’s the most annoying part of turning an idea into a post? Try it here: https://unmuse.online/

2026-08-29 原文 →
AI 资讯

Technical SEO Every Developer Should Know Even If You're Not a Marketer

Most developers treat SEO as "someone else's job" — a marketing concern that happens after the site ships. But a huge chunk of SEO is actually decided at the code level, long before a marketer ever touches the content. If you're building sites — for clients, for yourself, or as side projects — a few technical fundamentals can make or break how discoverable that work ever becomes. Here's the technical SEO checklist I use when reviewing or building sites, from a digital marketing + web perspective. Core Web Vitals Aren't Optional Anymore Google uses three core metrics as direct ranking signals: LCP (Largest Contentful Paint) — how fast the main content loads INP (Interaction to Next Paint) — how responsive the page feels to input CLS (Cumulative Layout Shift) — how visually stable the page is while loading A site can have perfect content and still underperform in search if these numbers are bad. Common culprits: unoptimized images, render-blocking JS, and layout shifts from late-loading ads or fonts. Quick wins: Lazy-load offscreen images Serve modern image formats (WebP/AVIF) Reserve space for dynamic content (ads, embeds) to avoid layout shift Defer non-critical JavaScript Structured Data Is a Developer Task, Not a Marketing One Schema.org markup (JSON-LD is the recommended format) helps search engines — and increasingly AI-driven search summaries — understand what's actually on the page: is this a product, an article, a recipe, an FAQ? Sites with well-implemented structured data are more likely to get rich results (star ratings, FAQ dropdowns, breadcrumbs) in search — which directly impacts click-through rate even without a ranking change. If you're building a site and skip this step, you're leaving visibility on the table for something that's usually a few hours of implementation work. Rendering Strategy Affects Crawlability Client-side rendered (CSR) React/Vue apps can still get indexed, but it's inconsistent and slower than server-rendered or statically generate

2026-08-29 原文 →
AI 资讯

What’s driving Sweden’s startup boom, from Lovable to Legora

Vibe-coding darling Lovable just raised $400 million at a $13.3 billion valuation, roughly doubling its worth in eight months. But Lovable isn’t the only Stockholm startup putting up huge numbers lately — legal AI company Legora and health tech startup Neko Health are right there with it. On this episode of TechCrunch’s Equity podcast, Dominic-Madori Davis is joined by Sophia Bendz, a partner at Cherry Ventures and longtime fixture of Europe’s startup […]

2026-08-27 原文 →
AI 资讯

I got banned from SoloLearn for trying to help beginners. Here's what happened.

I got banned from SoloLearn for trying to help beginners. Here's what happened. Yesterday, I was on a mission. I'm Harun, a 12-year-old solo dev who built KODA , an AI coding mentor, entirely on my Android phone. I noticed hundreds of beginners on SoloLearn asking: "How do I start?" , "Help me with loops!" , "I'm stuck!" So I did what any helpful founder would do: I answered their questions, gave them code solutions, and added a small P.S.: "P.S. I built a free tool called KODA to help with this. Try it here: [Link]." I thought I was being helpful. SoloLearn's algorithm thought I was spamming. Within hours, my account was blocked. 🚫 The Moment of Panic When I saw "Your account is blocked," my first thought was: "Oh no, I messed up. My marketing is over." But then, my CEO brain kicked in. I realized: If an automated bot thought my helpful comments were "spam," maybe I was doing something right. Maybe I was being too effective. The Lesson: Marketing vs. Helping Here is what I learned in 24 hours: Algorithms hate links. Even helpful ones. If you paste a URL 10 times, the bot doesn't care about your intent; it sees a pattern. Trust takes time. You can't force users; you have to earn them. The Story > The Link. People don't click links because they are forced to. They click because they connect with the story . The Pivot So, am I quitting? No. I'm pivoting. I'm turning this ban into this article. I'm going to focus on Dev.to , where the community values "Build in Public" stories. I'm going to ask my friends (Renuka, Dharaneesh) to be my first real users, face-to-face. And maybe, one day, I'll go back to SoloLearn with a smarter strategy: No links in comments. Just value in the bio. To Other Founders If you get blocked, rejected, or told "no" today: Don't stop. Turn that hurdle into content. Turn that rejection into a lesson. Turn that "Blocked" screen into your next viral post. Because while others see a wall, I see a story. And stories build empires. Try KODA anyway (no

2026-08-26 原文 →
AI 资讯

Black Hat State of Security Vendors

Andy Ellis has a roundup of the security vendors at Black Hat this year. Key Takeaways: We have entered into an AI world. While nearly half of booths didn’t directly mention AI or agents in their taglines, the effects of AI are everywhere. Multiple spaces (Identity, SaaS, AppSec, Data) have almost every vendor leading with AI; existing unsolved problem areas just got worse. At the same time, there’s a clear trichotomy in the market: tools that tell you how bad things are; tools that stop adversaries, and tools that prevent problems from occurring. While you’d suspect that the tools that fix things would dominate, the tools that merely tell you how bad things are seem to be frustratingly plentiful...

2026-08-25 原文 →
开发者

Polymarket Paper Trading Bot: Build One in Python

Polymarket Paper Trading Bot: Build One in Python A real-money trading bot is the wrong place to discover that your signal logic, order-book handling, or position accounting is broken. A Polymarket paper trading bot gives you a safer engineering environment: consume real market data, generate real signals, simulate orders and fills, and measure hypothetical performance before connecting execution credentials. The important distinction is that paper trading should simulate the execution layer , not fabricate market data. Polymarket currently exposes public market data without authentication, while its public WebSocket market channel provides real-time order-book and price updates. This article builds that architecture in Python. What You'll Learn How a paper-trading architecture differs from a live bot How to discover markets through the public API How to consume CLOB order-book data How to simulate limit-order fills How to track positions and P&L How to test arbitrage, market-making, and directional strategies How to graduate from paper trading to production safely About the Author Soulcrancerdev Contact: X: @soulcrancerdev Telegram: soulcrancerdev YouTube: YouTube channel The Architecture A useful design separates data, strategy, simulation, and accounting : flowchart LR A[Gamma Market Discovery] --> B[Market Metadata] C[CLOB REST / WebSocket] --> D[Market Data Engine] B --> D D --> E[Strategy Engine] E --> F[Paper Execution Engine] F --> G[Virtual Portfolio] G --> H[P&L / Risk Metrics] D --> I[Logger / Metrics] The key design decision is that PaperExecutionEngine should implement the same interface your live execution engine eventually uses. That means the strategy does not know whether an order is simulated or real. 1. Discover Markets Polymarket's Gamma API provides public market discovery. The current documentation exposes keyset pagination through: https://gamma-api.polymarket.com/markets/keyset Markets include fields such as conditionId , clobTokenIds , outco

2026-08-25 原文 →
AI 资讯

Build a Real-Time Polymarket Order Book Monitor with Python

Build a Real-Time Polymarket Order Book Monitor A trading bot should not make decisions from stale snapshots. If you want to understand liquidity, spread, depth, or changes in market structure, you need a continuously updated view of the Polymarket order book. This tutorial builds a lightweight Polymarket order book Python monitor using the public CLOB Market WebSocket. Polymarket documents this channel as a real-time feed for order-book, price, and market lifecycle updates. The implementation intentionally focuses on market data—not order execution—so it can be used as the foundation for research, dashboards, alerts, or an automated trading system. What You'll Learn How Polymarket token IDs relate to order-book subscriptions How to connect to the CLOB Market WebSocket How to process book and price_change events How to calculate best bid, best ask, and spread How to handle reconnects and heartbeats How to detect stale market data How to turn raw WebSocket events into trading signals Architecture flowchart LR A[Polymarket CLOB] --> B[Market WebSocket] B --> C[Python Async Client] C --> D[Order Book State] D --> E[Spread / Depth Metrics] D --> F[Trading Signal Engine] D --> G[Logging / Monitoring] The important design decision is separating transport from state . The WebSocket delivers events; your application maintains the current book. 1. Install the Dependencies For this monitor, authentication is not required because the Market WebSocket is public. pip install websockets You need a Polymarket asset ID/token ID for the outcome you want to monitor. The Market Channel subscribes using assets_ids . For example: TOKEN_ID = " YOUR_TOKEN_ID " Do not hard-code credentials into a market-data monitor. In this example, there are no credentials at all. 2. Connect to the Market WebSocket The documented Market Channel endpoint is: wss://ws-subscriptions-clob.polymarket.com/ws/market The subscription message contains type: "market" and one or more asset IDs. A minimal monitor lo

2026-08-22 原文 →
AI 资讯

Our Product Hunt launch returned 2 upvotes and 0 signups. Here is every number.

On August 19 we launched LeadAce on Product Hunt. It was our first launch to an English speaking audience. I am writing down the numbers while they are still uncomfortable, because the posts I found most useful when I was preparing were the ones that did this. We are a small software company in Tokyo. LeadAce is an outbound sales agent that runs as a Claude Code plugin. The backend is open source. It has been in Public Beta since the launch. The numbers Product Hunt, 24 hours: 2 upvotes 1 comment, which was mine Day rank #160, week rank #758 3 followers on the product page Signups from the launch: 0. Site traffic for the four weeks up to launch day: 6 active users, 27 page views. Referrers were direct 4, producthunt.com 1, t.co 1. Our X account over the same four weeks: 48 posts, 576 impressions total, 2 link clicks, 2 new followers. So the launch did not fail at the landing page. It failed before that. Almost nobody arrived. Where we got stopped This is the part I did not plan for. I spent weeks on the product, the demo video, the gallery images and the copy. Every one of those was ready. What I did not have was accounts. Hacker News. I could not post Show HN at all. HN was limiting Show HN submissions from low karma accounts, and my account had karma 1. I created it years ago and never used it. There is no way to buy your way past this, and there should not be. r/ClaudeAI. My first attempt was removed by automod because the account was too new. I tried again from my older Reddit account, which has an age of 5 years but karma 1. A moderator locked it. The subreddit requires 50 total karma to post a Showcase on the feed. They pointed me to a megathread instead, which is the correct call on their side. My comment there got 67 views and 1 upvote in 19 hours. r/SaaS. The post went through, but Reddit's pre-submit check warned me that it might break the rules on vendor spam. I removed every link from the body and changed the ending to a real question. That version poste

2026-08-22 原文 →
AI 资讯

Dockerize Your LLM Proxy: One Container for Free Multi-Provider Access

Dockerize Your LLM Proxy: One Container for Free Multi-Provider Access Want free LLM access in a repeatable, portable way? Run it as a container. Why Docker Single command to deploy anywhere Isolated environment with consistent deps Easy to put behind a reverse proxy DAVIL Cod in Docker DAVIL Cod ships a Dockerfile. Build and run with provider keys as env vars: docker build -t davil-cod . docker run -p 4000:4000 \ -e PROVIDER_GROQ_APIKEY = ... \ -e PROVIDER_MISTRAL_APIKEY = ... \ davil-cod Features you get Provider rotation with circuit breaker Disk cache for repeated prompts Dashboard on port 4000 FAQ Does it persist the cache? Yes — mount a volume for the cache directory. Can I expose it to my team? Yes — it's a normal HTTP service with token auth.

2026-08-21 原文 →
AI 资讯

We listed gex.live on ~15 directories in a week. Here is what that did and did not do

Build-in-public note, no fireworks. Why bother Search Console in mid-August was blunt: 6 of 1,098 pages indexed, the rest stuck at "Discovered – currently not indexed", and the Links report empty. Zero external backlinks. The site has a thousand free session pages that nobody can find because nothing points at them. Directories are the cheapest way to get the first handful of pointers, and they are also the corpora that AI assistants read when someone asks "what tools show SPX gamma exposure". So the goal was never traffic. It was (a) backlinks and (b) third-party mentions. What went in The same card everywhere: SPX dealer positioning rebuilt from the 0DTE tape; zero-gamma flip, call/put walls, hold band; every finished session free; a backtest Lab; an MCP server; no buy/sell signals. Logo from the favicon, three screenshots (terminal, the measured book, the Lab), category Finance / Investing wherever the menu allowed it. Done and live: Capterra, AlternativeTo, the official MCP registry (and glama.ai, which pulls from it), TradersList, Firsto, TinyLaunch, Startup Fame, Indie Hackers. Submitted and waiting on a human: StartupStash. Product Hunt is scheduled, one shot only. What we skipped, and why — this is the useful part Anything that wants a badge on our homepage for the free tier (Huzzler, Startup Fame's final step). The card is filled and sits unpublished. A measurement terminal with "featured on" stickers on it is a different product. AI-tool directories (Futurepedia, There's An AI For That). $300–$500 for a listing in front of an audience that wants image generators. The MCP server technically qualifies; the economics do not. Hashnode. Published a 1,300-word engineering write-up; AutoMod archived it within the hour as "this type of content" on a free subdomain, with an upsell to Pro. The Markdown is saved; it will go out on dev.to instead. Reddit. Not a channel for this product. Decided, not deferred. Paid "we submit you to 140 directories" packages. Every one

2026-08-21 原文 →
AI 资讯

Why Google Won't Index Your Pages: 4 GSC Fixes

Originally published on echoeffect.net . If you have been inside Google Search Console recently and clicked into the Pages report (previously called Index Coverage), you may have seen a section titled "Why pages aren't indexed." That list tells you exactly which URLs Google found on your site but chose not to add to its search index, and the reason for each one. This is not abstract SEO theory. Pages that are not indexed cannot rank. If Google is excluding pages from your site, you are losing search visibility you should have, and the reason is usually fixable once you understand what Google is actually telling you. This post covers the four most common "not indexed" statuses small business websites encounter, what each one means in plain terms, and the exact steps to resolve it. A quick note before diving in: Some pages on your site should not be indexed. Thank-you pages, admin pages, internal search result pages, and duplicate filter pages are examples where non-indexing is correct. Before fixing any of these errors, confirm the flagged URL is actually a page you want in Google's index. 1. Page With Redirect What it means: Google followed one of your URLs and landed on a different URL because a redirect was in place. The original URL is not indexed. Only the final destination URL is eligible to be indexed. This status is usually caused by one of three things: Old URLs still listed in your XML sitemap that have since been redirected (common after a site redesign or domain migration) HTTP versions of pages listed in your sitemap when the live site runs on HTTPS Trailing-slash inconsistencies, where your sitemap lists yoursite.com/page but the server redirects to yoursite.com/page/ The redirect itself is not necessarily a problem. A 301 redirect is the correct way to permanently move a page. The issue is that Google's crawler is spending time and crawl budget following chains to find the real URL, and your sitemap or internal links are pointing to the wrong address.

2026-08-18 原文 →