Contact Form 7 vs Sailthru Custom
Side-by-side comparison based on real-world adoption data from 8,061 detections across analyzed websites.
Market Share Distribution
Contact Form 7
PluginsFree WordPress contact form plugin supporting multiple forms, AJAX submission, CAPTCHA integration, and Akismet spam filtering.
Our Analysis
Contact Form 7 is significantly more popular than Sailthru Custom in our dataset, appearing on 8089 websites compared to 1. Both are in the Plugins category, making them direct alternatives.
Contact Form 7 vs Sailthru Custom: In-Depth Analysis
The technical comparison between Contact Form 7 and Sailthru Custom highlights two distinct approaches to plugin implementation within the WordPress ecosystem and beyond. Contact Form 7 maintains a substantial market presence with a detection_count of 550, positioning it as a standard utility for managing multiple contact forms across a wide variety of domains such as 972mag.com and abet.org. In contrast, Sailthru Custom appears as a highly specialized or bespoke solution, with a site_count of 1 currently recorded in the StackOptic dataset. This massive disparity in adoption—550 sites versus a single instance—suggests that while Contact Form 7 serves a broad user base with features like AJAX submission and CAPTCHA integration, Sailthru Custom is likely a proprietary or custom-tailored tool. Engineering teams must evaluate whether they require the standardized, feature-rich environment of a high-volume plugin or the singular, focused utility of a custom-built integration like that found on wtop.com.
Key Differences
- Market Penetration: Contact Form 7 is a high-volume plugin with 550 detections, whereas Sailthru Custom is a niche implementation with only 1 detection.
- Functional Scope: Contact Form 7 provides a comprehensive suite for form management, including AJAX submission and multiple form support, while Sailthru Custom's specific features are undocumented beyond its plugin classification.
- Security Integration: Contact Form 7 includes native support for CAPTCHA and Akismet spam filtering, features not identified in the Sailthru Custom profile.
- User Diversity: The user base for Contact Form 7 includes diverse entities like 10eurobonus.casino, aans.org, and abnt.org.br, while Sailthru Custom is restricted to wtop.com.
- Implementation Type: Contact Form 7 is a free, standardized WordPress plugin; Sailthru Custom represents a unique, custom-developed plugin instance.
When to choose Contact Form 7
Contact Form 7 is the superior choice for organizations that require a reliable, free WordPress plugin to manage multiple contact forms with minimal custom development. Its support for AJAX submission and Akismet spam filtering makes it ideal for sites like aans.org and abet.org that prioritize user experience and security. With a site_count of 550, it is the appropriate selection when a well-documented, community-vetted tool is necessary to handle standard form-based interactions and CAPTCHA integrations across a diverse range of web properties.
When to choose Sailthru Custom
Sailthru Custom is the appropriate pick only when a site requires a bespoke plugin solution that is not satisfied by mass-market tools. As it is currently detected on only 1 site, wtop.com, it is likely a custom-engineered integration specifically designed for that environment. Engineering decision-makers should opt for this path when they have the resources to maintain a unique codebase and require specific functionality that a general-purpose plugin like Contact Form 7 cannot provide within its standard feature set.
Market Insight
The market data reveals a complete lack of overlap between these two technologies, with a shared_count of 0. Contact Form 7 dominates the adoption metrics with a detection_count_a of 550, whereas Sailthru Custom remains an isolated case with a detection_count_b of 1. This suggests that these plugins serve mutually exclusive technical requirements, with no sites in the current dataset choosing to implement both tools simultaneously. The data reflects a clear divide between standardized utility and custom enterprise development.
Sites Using Both (0)
No sites use both technologies together.
Only Contact Form 7
Only Sailthru Custom
The Verdict
The analysis of Contact Form 7 and Sailthru Custom demonstrates a clear choice between broad utility and narrow specialization. Contact Form 7 offers a proven, feature-complete solution for 550 sites, emphasizing AJAX and spam protection. Sailthru Custom serves a singular, unique role for wtop.com. For SEO and engineering leads, the decision rests on whether to leverage a high-adoption, standardized plugin or to utilize a bespoke, custom-tailored tool. The zero shared usage confirms these technologies occupy different operational tiers.
Frequently Asked Questions
How do the site counts for Contact Form 7 and Sailthru Custom compare?
Contact Form 7 is currently detected on 550 sites, while Sailthru Custom has a site_count of 1.
What security features does Contact Form 7 offer compared to Sailthru Custom?
Contact Form 7 includes CAPTCHA integration and Akismet spam filtering, whereas Sailthru Custom has no documented security features in the provided dataset.
Which specific sites utilize Contact Form 7 and Sailthru Custom?
Contact Form 7 is used by sites such as 972mag.com and ab-resurs.ru, while Sailthru Custom is used exclusively by wtop.com.
Is there any evidence of Contact Form 7 and Sailthru Custom being used together?
No, the market data shows a shared_count of 0, indicating no co-usage between these two plugins.
What is the primary technical category for Contact Form 7 and Sailthru Custom?
Both technologies are categorized as plugins within the StackOptic dataset.
Check Any Website's Technology Stack
Find out if a website uses Contact Form 7, Sailthru Custom, or any other technology.
Analyze a Website