
SEMRush
Moz
SE Ranking
Serpstat
Profound
Otterly.AI
Surfer SEO
Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!

Barcode & QR Code Scanner
GS1 US Data Hub
Ecommerce Tools AI
Onelinetoolstack
QR Droid
ShopSavvy
ZBar bar code reader
Check digits, UPC↔EAN conversion, ISBN, IBAN validation and bulk barcode checks. Free, instant, no sign-up.

Which is more popular?
Based on our record, Ahrefs seems to be more popular. It has been mentioned 123 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | ahrefs.com | code-classify.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Singapore | Startup from Italia · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


Ahrefs is trusted by SEOs and marketing professionals worldwide as the ultimate toolset for SEO, powered by industry-leading data. Ahrefs crawls the web, stores tons of data and makes it easily accessible via a simple user interface. The data can be used to aid keyword research, link building,...
CodeClassify is a suite of 16 free, browser-based tools plus a deterministic REST API and downloadable CSV datasets for validating, converting and classifying product and business codes: GTIN/UPC/EAN barcode check digits, ISBN, IBAN (MOD-97), EU VAT, VIN, SSCC pallet codes, ISO 6346 containers,...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Ahrefs yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Ahrefs Review and Tutorial: Is This The Only SEO Tool You Need?
More videos
No CodeClassify videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Ahrefs and CodeClassify.
CodeClassify's answer:
E-commerce sellers & ops validating GTIN/UPC/EAN before listing on Amazon, eBay or Shopify
Developers & data engineers needing a deterministic API for bulk validation and classification
Accountants & analysts working with NAICS/SIC business codes
Logistics, customs & trade teams handling HS codes, SSCC pallets and ISO 6346 containers
Finance/fintech teams checking IBAN, EU VAT and routing numbers
CodeClassify's answer:
CodeClassify is deterministic: every result is computed from official public standards (GS1 Mod-10, ISO 13616, ISO 3779, U.S. Census NAICS/SIC, U.S. HTS), so the same input always returns the same output — no AI guessing, no invented codes. It's also unusually broad: one place to validate, convert and classify barcodes (GTIN/UPC/EAN), ISBN, IBAN, EU VAT, VIN, SSCC, ISO 6346 containers, ABA routing numbers, and business codes (NAICS/SIC/HS) — as free browser tools, a REST API, and downloadable datasets.
CodeClassify's answer:
CodeClassify runs on Cloudflare Pages for the static tools and Cloudflare Workers + D1 for the API and dashboard. The validation and classification logic is implemented directly from official public standards and datasets (GS1, ISO, U.S. Census, U.S. HTS). Payments are handled by Stripe, and the API is also distributed on RapidAPI.
CodeClassify's answer:
Most alternatives are single-purpose (just barcodes, or just IBAN) or AI-based classifiers that can hallucinate codes that don't exist. CodeClassify covers every major product and business code in one place, computes results from official standards (auditable and repeatable), and offers three ways to use it: free tools with no sign-up, a deterministic API for bulk and automation, and clean CSV datasets. It's built for feeds, compliance and data pipelines where "the same answer every time" matters.
CodeClassify's answer:
CodeClassify started from a simple frustration: product and business codes are everywhere, but checking them meant a dozen scattered, ad-heavy sites — and newer "AI" tools would confidently return codes that don't exist. The goal was one clean, fast place that computes every answer from the official standard, keeps the everyday tools free and sign-up-free, and offers an API and datasets for teams that need to work at scale.
Share your experience with using Ahrefs and CodeClassify. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


I've really enjoyed using Ahrefs to inform my content creation, particularly because the Keyword Explorer is so useful for identifying low-difficulty keywords.
For full management : Semrush or Ahrefs cover research, auditing, and tracking in one place, making them ideal for agencies managing multiple clients. See our guide to the best SEO tools for agencies.
Ahrefs is renowned for its robust keyword research and industry-leading backlink analysis. Designed as a comprehensive web-based suite, Ahrefs empowers affiliate marketers to uncover profitable keywords and analyze...
We have no reviews of CodeClassify yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Marketing-led growth (MLG) involves extensive marketing initiatives to drive customer acquisition, retention, and expansion. Brands such as HubSpot and Ahrefs have found success with MLG by leveraging large content libraries to generate... - Source: dev.to / 6 months ago
Ahrefs provides industry-leading backlink analysis alongside powerful content research capabilities that help WordPress sites build authority. Site Explorer reveals your complete backlink profile while identifying link-building... - Source: dev.to / 9 months ago
Domain Rating is a proprietary metric developed by Ahrefs that measures the strength of your website's backlink profile. - Source: dev.to / about 1 year ago
Tracking CodeClassify since Jul 2026.
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