Bootstrapper

Maxime Dupré  • Peerlist

<h3>SSL Certificate Checker for HTTPS Audits</h3>
This tool checks public SSL/TLS certificates for domains, URLs, and host:port endpoints. It is designed for various use cases including expiry monitoring, security audits, SEO checks, client website reviews, and portfolio health reports.
Key features include:
<ul>
<li>Bulk checking of public HTTPS endpoints.</li>
<li>Acceptance of bare domains, full HTTPS URLs, and explicit host:port values.</li>
<li>Normalization of targets to host and port for checking.</li>
<li>Flagging of certificates that are valid, expired, expiring soon, untrusted, self-signed, or hostname-mismatched.</li>
<li>Extraction of issuer, subject, validity dates, serial number, SHA-256 fingerprint, SANs, and certificate chain details.</li>
<li>Recording of negotiated TLS protocol and cipher data.</li>
<li>Checking of HTTP-to-HTTPS redirect posture and HSTS headers.</li>
<li>Saving a dataset row for each endpoint that provides usable certificate, TLS, or HTTPS posture data.</li>
</ul>
The Actor provides detailed data points such as certificate validity, expiry status, trust status, hostname match, issuer information, subject details, serial number, SHA-256 fingerprint, Subject Alternative Names (SANs), certificate chain, TLS protocol, cipher suite, HTTP redirects to HTTPS, HSTS headers, and any identified issues.
It is built using technologies like Apify, JavaScript, Python, and TypeScript, leveraging the Crawlee library for web scraping and crawling.

SSL Certificate Checker

<h3>RapidAPI Scraper for Marketplace API Data</h3>
This tool is designed to efficiently scrape public API listings from the RapidAPI marketplace. It allows users to search for APIs using keywords, enrich specific API profile URLs, browse by category, or collect APIs from predefined collections.
Key Features:
<ul>
<li>Comprehensive Data Extraction: Collects API IDs, URLs, names, descriptions, categories, tags, provider details, pricing information, performance metrics, billing plans, documentation links, and endpoint metadata.</li>
<li>Flexible Targeting: Supports scraping via keywords, exact profile URLs, category names, or collection slugs.</li>
<li>Detailed Information: Offers options to retrieve basic listing data, detailed profile information, or comprehensive data including endpoint details.</li>
<li>No Account Required: Does not require RapidAPI account credentials, API keys, or browser sessions for scraping.</li>
<li>Developer-Focused: Built with developers in mind, providing code templates in Python, JavaScript, and TypeScript.</li>
<li>Data for AI and Market Research: Ideal for API discovery, competitor analysis, software market mapping, and generating repeatable exports for AI training or market research.</li>
</ul>
The scraper saves each scraped API listing or profile as a separate dataset item, ensuring clean and organized data. It focuses on publicly available information and does not access private account data or API keys.
Pricing: The tool operates on a pay-per-event model, charging only for successfully scraped API items.

RapidAPI Scraper

I'm building ChampSignal, a competitor tracking tool for early-stage B2B founders. One of the paid features shows what keywords your competitors rank for on Google.I figured this feature works great on its own. So I pulled it out and shipped it as a free tool :DWhat you getEnter any website URL and see their top 10 Google keywords. For each one you get:- Ranking position - Monthly search volume - Keyword difficulty score (0-100) - Search intent (commercial, informational, etc.)Why this is usefulIf you're working on SEO or content, knowing what works for your competitors is huge. The results pull from real Google ranking data, same source the big SEO platforms use. You just get it in 5 seconds instead of paying $100+/month.See a keyword your competitor ranks for that you don't? That's a gap you can fill with your own content.Tech stack- SvelteKit + TypeScript - Tailwind CSS + DaisyUI - DataForSEO API for keyword data - Cloudflare Turnstile for bot prevention - Deployed on VercelHow I built itThe data comes from DataForSEO's ranked keywords endpoint. It pulls the top organic keywords for the US market, sorted by position and search volume. I added Turnstile verification because the API calls cost money and I didn't want bots eating through my budget.The whole thing is one SvelteKit route with a form action. Nothing over-engineered. Works great on mobile too.If you want to track keyword changes over time (like when a competitor starts ranking for something new), that's what ChampSignal's paid plan does. But for a quick look at what any site ranks for right now, this free tool does the job.

Competitor Keyword Finder

I run a competitor monitoring tool called ChampSignal. One of its features tracks news articles about your competitors every day.I kept thinking... what if I pulled out just the news search part and made it free for anyone? No signup, no credit card, just results. Good for getting the word out about ChampSignal, and actually useful on its own.So I built it :DHow it worksType in any company URL (like <a target="_blank" rel="noopener noreferrer" class="break-all link-break text-gray-500 hover:underline" href="http://figma.com">figma.com</a>). It searches thousands of news sources and returns up to 10 articles from the last 30 days. Each result comes with:- The headline- A short AI-generated summary- The source and publication date- A direct link to the full articlePaste a URL. Get news. Done.Why it's better than Google AlertsGoogle Alerts miss a ton of coverage. They mostly catch big outlets and skip niche blogs, industry sites, and smaller publications. And half the time they send you stuff that's not even relevant.This tool uses AI-powered search (built on Exa AI) to dig deeper. It finds articles that actually mention the specific company, not just keyword matches from unrelated pages.Who it's for- Founders checking what competitors are up to- Anyone doing quick company research before a sales call, pitch, or partnership- People tired of setting up Google Alerts that never deliverTech stackSvelteKit, TypeScript, Tailwind CSS, DaisyUI, Exa AIWhat's nextThis handles one-time searches. If you need daily monitoring across news, website changes, social media, ads, and more, that's what the full ChampSignal product does. Hopefully some of you check it out. But even on its own, this free tool does the job.

Company News Finder

Some people asked me for a one time competitive report. They did not want another subscription. So I built this.Paste your site URL. We run 2+ hours of deep research and deliver a 22 page report, 14 CSV tabs with the raw data, and 3 swipe files.It maps 10 competitors with pricing, features, SEO gaps, top keywords, ads, landing pages, reviews, and a 2 by 2 map. It ends with clear next steps.All data comes from 15+ live sources including custom scrapers. It is real and traceable, not guesses.Launch price is $129 one time. You get lifetime access and free re‑runs when new versions ship.Example report: <a target="_blank" rel="noopener noreferrer" class="break-all link-break text-gray-500 hover:underline" href="https://champsignal.com/app/reports/c29ad4d7-60f0-4eab-a5b8-d800839fa717">https://champsignal.com/app/reports/c29ad4d7-60f0-4eab-a5b8-d800839fa717</a>If you're a builder I would love your feedback. :D

Competitive Intelligence Report

I built this as a free side tool for ChampSignal, my competitive intelligence platform.Honestly, I saw a lot of people searching for "mission statement generator" on Google, like 4,700 searches a month. Figured it might be a good way to bring some traffic to my main product while making something genuinely useful.You paste your website URL, and GPT-5.1 with web search figures out what you do, who you serve, and what makes you different. Then it writes a first draft you can tweak :DNo signup. No paywall. Just paste and go.How it works:1. Paste your website URL (or describe your business manually)2. AI analyzes your site and extracts the key info3. Pick a tone (professional, bold, friendly, etc.)4. Get a mission statement draft in seconds5. Edit until it feels rightWould love feedback from the Peerlist community, what would make this more useful?

Mission Statement Generator

Champ is an AI agent that answers any question about your competitors in seconds.The Problem:Founders and small teams don't have time to research competitors. But they need to know what's happening to win deals and stay ahead.Hiring a competitive intelligence analyst costs $80K+ per year. Most teams can't afford that.The Solution:Champ learns from real data we track every day. Websites, ads, news, social media, SEO. Everything.Ask Champ anything:- "How does our pricing compare to Competitor X?"- "What are their biggest weaknesses?"- "Create a battlecard for my next sales call"- "What changed on their website last month?"Get answers in seconds. Always current. Always accurate.Who it's for:- Startup founders who are too busy to dig through competitor sites- Small GTM teams who need analyst-level insights without the headcount- Sales leaders who want their team ready for any competitor objectionTry it free for 14 days. Setup takes about a minute.

Champ

Competitor Finder API lets you find competitors for any company, brand, or product with a single API call.The ProblemBuilding a good competitor finder is surprisingly hard. You need the right data sources, logic to filter noise, and constant tuning to separate real competitors from random companies in the same industry.The SolutionWe spent months building and refining this for ChampSignal (our competitor monitoring product). Now we're making it available as a standalone API.How It WorksPass a hostname. Get back a ranked list of competitors.Each result includes:• Company name and website• Competitor type (direct or indirect)• Short reason explaining why they competeExample ResponseInput: <a target="_blank" rel="noopener noreferrer" class="break-all link-break text-gray-500 hover:underline" href="http://figma.com">figma.com</a>Output:- Sketch (Direct) - Mac-focused vector UI design platform- Penpot (Direct) - Open-source UI/UX design tool- Framer (Direct) - Visual web-design and prototyping platform- Miro (Indirect) - Visual collaboration workspace competing with FigJamOptional EnrichmentAdd $0.10 per competitor to get business details:• Description and pricing info• Target market (SMB to Enterprise)• Employee count and founded year• Public or private ownershipPricingPay-as-you-go. $0.10 per competitor found. No monthly fees. No minimums.Use Cases• SaaS Onboarding: Auto-populate competitor lists when users sign up• Market Research Tools: Power competitive analysis features• Data Enrichment: Add competitor data to company profilesPerformanceCached companies return in seconds. New companies take up to 15 minutes as we gather and analyze data.Built on the same engine that powers ChampSignal in production.

Competitor Finder API

Sup 👋I built a dead simple website scraper (cause I like leads... more leads!!! I'm greedy).Put in your URL(s)... it will go to those URLs... and extract any emails on the page 😀 .I decided to build this with Apify and put it on their marketplace! But don't worry, they give you $5 free, which is enough for 2500 free emails 🥹Cheers!!—M

Website Emails Scraper

I built a small tool that does one job well. Give it a site, it crawls internal pages and returns the emails it finds. Fast, simple, and meant for devs.How it works- Input a list of URLs, it follows internal links- Picks up emails from mailto and visible text- Dedupes results and skips obvious junkOutput- JSON rows `{ url, email }`- Export to CSV or plug straight into your pipelineUse from code- REST API, JS and Python clients- Works with the Apify CLI for local runs- Optional MCP endpoint if you want to wire it into your agent setupPricing- Pay per result with a free try before you commitWhat I’d love from Peerlist- Edge cases where it misses or returns false positives- Limits that feel too tight or too loose- Toggles you want, like max depth per domain or stricter patternsAbout meI’m Maxime, solo dev in Montreal building small scraping tools and ChampSignal 💪

Bing Rank Checker

Hi 👋I built a lightweight scraper that pulls any day’s Product Hunt launches which is perfect for lead gen, research, and tracking your own launch competitors.What it grabs per product<ul><li>URL, name, short/long description</li><li>Maker details (name + all public links: X, PH profile, personal site)</li><li>Automatically crawls each product’s website to collect emails (optional)</li></ul>Great for<ul><li>Daily leads for B2B/B2C</li><li>Daily launch digests/newsletters</li><li>Competitive tracking and indie project inspiration&nbsp;</li></ul>How it works<ol><li>Pick a date (e.g., 2025-07-23)</li><li>Choose how many products to fetch</li><li>Toggle email scraping on/off</li><li>Run and export JSON/CSV from the dataset—done.&nbsp;</li></ol>Example output (fields)url, name, shortDescription, longDescription, makersInfo[], emails[]&nbsp;Notes<ul><li>Runs with IP rotation / any proxy pool</li><li>Pay-per-run pricing on Apify, with a free try button to test it quickly.&nbsp;</li></ul>If you need another field, ping me as I can add it fast!

Product Hunt Scraper (/W Emails!)

Hello people, thanks for checking out my project 🫡I've been building ChampSignal (competitor monitoring) for a couple of months now, and I realized people love to know who their competitors are. Furthermore, before you can monitor competitors, you actually have to actually know who they are (duh!). Finding your competitors is harder than it looks if you haven't been in your industry for a long time 😅 So I created a free tool that finds all of them!Competitor Finder (free): Paste your domain → get a curated list of the top competitors your potential customers are most likely comparing you against. We analyze your domain and scan across the web to surface a focused top-10 list with names, sites, and a quick positioning note. What you can do with the results:• See who else serves (or is perceived to serve) your audience so you can understand your market position. • Spot how to differentiate by contrasting what they offer vs. what you do. • Find gaps + new feature / content ideas where competitors are thin. • One-click move from “list” to live monitoring inside ChampSignal—track website changes, ads, backlinks, and keyword rankings, and get smart alerts only when something meaningful happens. It’s 100% free to run a competitor search. Grab your domain and see who shows up. Sometimes you might be surprised! ￼So anyway, I’d love feedback! Did I miss anything? What additional insight would help you? Drop a comment below. 🙏 — Max @ ChampSignal