Opinion Stage
Quiz, poll and assessment maker for capturing leads and audience insights on websites.
Best for: Publishers and marketers using quizzes and polls to grow email lists and learn about readers.
Search and filter 812 marketing tools by category, price, business type, and features.
Ranked by Overall Score: our Editor Rating and Market Signal, 50/50. Market Signal uses Ahrefs and Semrush data through September 2026, pulled October 6 to 19, 2026. How we score
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Quiz, poll and assessment maker for capturing leads and audience insights on websites.
Best for: Publishers and marketers using quizzes and polls to grow email lists and learn about readers.
Houston-based certificate authority with eSigner cloud signing, document signing and private PKI.
Best for: Software publishers and document-heavy businesses that need cloud-based code and document signing alongside web certificates.
Thales-owned application and data security vendor with DDoS protection for websites, networks and IPs.
Best for: Enterprises and regulated firms that want DDoS, web application and data protection from a single vendor.
SEO research suite for keywords, audits and backlinks.
Best for: Freelancers and small marketing teams needing straightforward SEO research and rank monitoring.
Public CA and cloud CLM platform, Sectigo Certificate Manager, plus SiteLock website security.
Best for: IT and PKI teams that need to automate certificate renewal across load balancers, Kubernetes and cloud key vaults.
Website security service combining malware cleanup, cloud firewall and monitoring.
Best for: Website owners and agencies that need remote malware cleanup and a cloud firewall across WordPress or other web platforms.
WordPress form plugin with conditional logic, payments and workflows.
Best for: WordPress sites that need advanced forms with conditional logic, payments, surveys, or workflow integrations.
Interactive content platform for calculators, quizzes and recommendations.
Best for: Marketing and demand-generation teams using calculators, quizzes, or recommenders to qualify visitors and produce personalized outcomes.
WordPress security plugin with malware scanning, one-click cleanup, firewall protection, and vulnerability monitoring.
Best for: WordPress site owners and agencies that want remote malware cleanup plus firewall and vulnerability protection across one or many sites.
GMO-owned certificate authority offering the Atlas identity platform, managed PKI and IoT device identity.
Best for: Enterprises and IoT manufacturers that need high-volume certificate issuance or regulated certificates such as eIDAS and PSD2.
Website monitoring combining synthetic checks with real-user performance measurement.
Best for: Web and application teams that want both simulated availability checks and performance data collected from real visitors.
Digital market intelligence platform for app, advertising and audience.
Best for: App publishers, investors, advertisers, and market-research teams that need comparative mobile-market and digital performance intelligence.
Website technology lookup with lead lists, technology change alerts, browser extensions and an MCP server.
Best for: Sales and agency teams prospecting companies by the software their websites run, such as stores on a specific ecommerce platform.
Identify the technologies websites are built with.
Best for: Sales, marketing and research teams that need technographic data.
App store optimization, Apple Ads management and market data platform for mobile apps.
Best for: Mobile app publishers that run both organic store optimization and Apple Ads campaigns from one workspace.
Competitive intelligence for display and native advertising.
Best for: Media buyers and agencies researching competitors' display advertising.
Lead magnet creator that turns blog posts into eBooks, checklists and gated resource libraries.
Best for: Bloggers and content marketers who want to repurpose existing articles into email list incentives.
Certificate authority issuing 90-day and annual SSL certificates with ACME automation and a REST API.
Best for: Developers and site owners who want to automate certificate issuance and renewal through ACME clients or an API.
Website monitoring for uptime, page speed and domains.
Best for: Small web teams and agencies that want several website-health checks and customer-facing status pages from one monitoring service.
Automattic's poll, survey and quiz builder, formerly Polldaddy, with a WordPress plugin.
Best for: WordPress publishers and bloggers who want reader polls and ratings embedded in posts.
WordPress security platform focused on vulnerability intelligence, virtual patching, and plugin-level protection.
Best for: WordPress site owners, agencies, and hosting providers that want vulnerability-focused protection and virtual patches for plugins and themes.
Continuous vulnerability management platform for external infrastructure, cloud environments, and web applications.
Best for: Small and midsize security teams that need recurring vulnerability scanning and prioritization across external infrastructure and cloud assets.
Source code search engine that finds websites by technology, script, cookie or HTML snippet.
Best for: Sales and research teams building prospect lists of companies that run a specific script or tech stack.
Free-canvas design studio for building animated, interactive web content without code.
Best for: In-house creative and brand teams that want to ship interactive content without front-end developers.
Competitive enablement platform for collecting intelligence, building battlecards, and delivering competitor guidance into seller workflows.
Best for: Competitive enablement teams that need battlecards and curated competitor insights embedded into sales and revenue workflows.
Continuous pentest platform pairing AI-driven DAST scanning with expert-led penetration testing.
Best for: SaaS companies and engineering teams that need recurring pentests and compliance-ready reports for SOC 2 or ISO 27001 audits.
ASO platform from SplitMetrics with keyword tracking and a bulk store listing editor.
Best for: App developers who update store listings in many languages and want to skip the store consoles.
Application security platform covering web, API and mobile.
Best for: Security teams that need coordinated testing and monitoring across web applications, APIs, mobile apps, and exposed digital assets.
Browser extension that reveals a site's CMS, frameworks, plugins, fonts and trackers in one click.
Best for: Developers, designers and marketers who want a quick look at another site's stack while browsing.
External attack-surface and application security testing driven by automated scans and security researcher findings.
Best for: Application-security and security teams that need continuous testing of internet-facing web assets and externally exposed attack surfaces.
Content repurposing app that converts posts, documents and videos into eBooks and flipbooks.
Best for: Podcasters, bloggers and course creators turning existing content into downloadable books.
Competitive intelligence platform for monitoring market signals, synthesizing competitor changes, and distributing sales-ready insights.
Best for: Competitive intelligence and enablement teams that need continuous competitor monitoring plus battlecards and distributed market insights.
No-code builder that turns Excel-style formulas into offline-capable calculator web apps.
Best for: Engineers, consultants and sales teams who already model calculations in spreadsheets and want to share them as apps.
Sectigo-owned website security service that scans for malware, removes infections and patches vulnerabilities.
Best for: Small business and WordPress site owners who want malware cleanup handled for them after a hack.
ABM content platform that generates personalized interactive documents for target accounts.
Best for: B2B marketing teams running account-based campaigns that need to prove which content influences deals.
WordPress opt-in form plugin from Thrive Themes with targeting and split testing.
Best for: WordPress bloggers and course sellers who want list-building forms managed inside their own site.