Cordon vs Blockify
Blockify is one of the most established country and IP blocking apps on the Shopify App Store, with a large install base and years of history. If you are evaluating it, you are probably also weighing Cordon. This page compares the two honestly, criterion by criterion.
The short version: both apps block countries and IPs competently. The differences show up in how each detects disguised traffic (VPNs, residential proxies, scrapers), where the blocking decision runs, and how visitor data is stored. Descriptions of Blockify below are based on its public App Store listing as of July 2026.
Where Blockify is strong
- Long track record and a large review base on the App Store
- Broad rule options for countries, IPs, and IP ranges
- An established brand many merchants already trust
Criterion by criterion
| Criterion | Cordon | Blockify |
|---|---|---|
| VPN / proxy detection data | Live commercial detection data refreshed continuously; catches residential proxies and Tor exits, with a tunable fraud-score threshold | IP-list based approach typical of established blockers; public listing does not describe live per-request commercial proxy scoring |
| Where blocking happens | Detection decision at the edge in under 50ms, delivered through a theme app extension; optional Cloudflare edge worker (Plus) blocks before the request reaches the store | Blocking applied in the storefront after the page starts loading, the common pattern for this app category |
| Storefront performance | Tiny storefront footprint, no injected script tags, built to keep Lighthouse scores intact | Adds storefront JavaScript; the weight and Lighthouse impact depend on configuration |
| SEO safety | Verified search engines and good bots (Google, Bing, GPTBot, ClaudeBot, PerplexityBot, Ahrefs) are always allowed and cannot be blocked; spoofed crawlers from the wrong network are caught | Public listing does not describe network-verified crawler allowlisting; user-agent based allowlists can be spoofed either way |
| Privacy / GDPR | IPs are SHA-256 hashed with a daily-rotating salt; raw IPs never sit in the visitor log; DPA available | Visitor logs in this category typically store raw or lightly masked IP addresses; check the vendor's DPA before relying on it |
| Scraper-specific detection | Headless markers, request-velocity detection, spoofed-crawler checks, datacenter ASN blocks, and an anti-scraping decoy mode on Plus | Focused on country, IP, and VPN blocking; scraper-specific behavioral detection is not the product's core pitch |
| Failure behavior | Fails open: if the service hiccups, real customers shop normally | Failure behavior is not documented on the public listing |
Verdict
If you only need to block a handful of countries and IPs, both apps do the job and Blockify's track record is a legitimate point in its favor.
If your actual problem is disguised traffic (residential proxies at checkout, scrapers cloning your catalog, fake Googlebots) the detection layer matters more than the rule editor. That is the problem Cordon was built around: live proxy data instead of static lists, velocity and headless detection, network-verified crawlers, and hashed IPs so the log itself is GDPR-safe.
Try Cordon on your own traffic
The honest test beats any comparison table: install it, watch the live visitor log for a week, and see what it catches. Free plan included.
Free plan included, 7-day free trial on paid plans. Cancel anytime.
Frequently asked questions
Is Cordon a Blockify alternative?
Yes. Cordon covers the same core jobs (country, IP, and VPN blocking) and adds scraper-specific detection, datacenter ASN blocks, network-verified crawler allowlisting, and GDPR-safe hashed IP logging.
Can I run Cordon and Blockify at the same time?
Technically yes, but you should not. Two blocking apps make block decisions hard to debug and double the storefront overhead. Pick one, test it for a week, and keep the one that catches more of your actual problem traffic.
Is Cordon cheaper than Blockify?
Pricing models differ and both change over time, so compare current listings. Cordon starts free, and paid plans run from $9 to $99 per month based on traffic, with a 7-day trial on each.
What does Cordon catch that a static IP list cannot?
Residential proxies, fresh VPN exits, and scrapers on rotating datacenter IPs. Static lists age immediately; Cordon scores each visit against live commercial data and network-level signals like the ASN.