Last updated: September 2026
Global rank: Worldwide · 2026-09
#112,469
AI visibility: Grade A
89
SEO health: Latest audit
92
Visits
106
per month, estimated
Keywords
18
ranking in Google
Organic share
100%
106 organic visits
LLMS.txt
Published
131 lines AI engines can read
You're seeing the free preview of viacep.com.br
viacep.com.br Company Profile
ViaCEP provides a no-cost API that delivers complete Brazilian addresses from just a CEP code. Developers integrate it into forms, e-commerce checkouts, and apps needing reliable address data without paid services. The service sources data directly from official Correios records for accuracy nationwide. It requires zero authentication and returns clean JSON with street, neighborhood, city, and state details. No rate…
Founded in 2012 (about 14 years ago), ViaCEP is based in São Paulo, Brazil. Its workforce is listed as between 1 and 10 employees. Its profile files it under Software & Internet, with further tags for API Services, Address Validation and Data Lookup. Total funding on record is Bootstrapped. Its tagline reads: "Free Brazilian CEP API for instant address lookups and validation".
- Sector
- Software & Internet
- Headquarters
- São Paulo, Brazil
- Founded
- 2012
- Employees
- 1-10
- Revenue
- Not Disclosed
- Funding
- Bootstrapped
viacep.com.br Web Traffic Statistics
Key findings
- ViaCEP (Software & Internet) is ranked #112,469 worldwide in our September 2026 domain ranking, down 550 places from #111,919 in August 2026.
- It is estimated to receive about 106 visits a month from search, 100% of it organic, across 18 ranking keywords.
- Its AI visibility score is 89 out of 100 (grade A), with a published llms.txt of 131 lines.
- Its last technical audit scored 92/100, with "Implement H1 Tags" the highest-priority fix.
| Month | Rank | Move |
|---|---|---|
| September 2026 | #112,469 | ▼ 550 |
| August 2026 | #111,919 | ▼ 696 |
| July 2026 | #111,223 | ▼ 208 |
| June 2026 | #111,015 | — |
| May 2026 | #111,015 | ▼ 3,284 |
| April 2026 | #107,731 | ▲ 24,859 |
| March 2026 | #132,590 | ▲ 8,073 |
| February 2026 | #140,663 | — |
What this company does
ViaCEP provides a no-cost API that delivers complete Brazilian addresses from just a CEP code. Developers integrate it into forms, e-commerce checkouts, and apps needing reliable address data without paid services. The service sources data directly from official Correios records for accuracy nationwide. It requires zero authentication and returns clean JSON with street, neighborhood, city, and state details. No rate…
Our read on the site
The overall SEO health of viacep.com.br is strong, with a high performance score of 93/100 and an SEO score of 100/100. However, there are critical areas for improvement, particularly in on-page elements such as heading structure and viewport settings, which could enhance user experience and search visibility.
viacep.com.br Traffic and Visitor Engagement
Search engines send viacep.com.br an estimated 106 visits a month. Effectively all of it is organic — about 106 visits from unpaid results. Spread across 18 ranking keywords, that averages roughly 5.9 organic visits per keyword.
Monthly visits
106
Latest estimate
Change
No monthly history yet
It starts building from the first scan
Organic visits
106
100% of all traffic
Paid visits
0
No paid search detected
Organic vs paid
100%
0%
We don't hold a month-by-month history for this domain yet.
The traffic dashboard builds one from the first scan onwards.
viacep.com.br AI Visibility
viacep.com.br scores 89 out of 100 on our AI visibility scale, grade A. It takes full marks for LLMS.txt, SEO health and Crawlability. The biggest gap is Company profile, at 19 of 25 points (6/8 core fields), worth 6 points if closed. It also loses points on Structured data (0/5).
Grade A
Scored from this domain's own data — llms.txt, profile completeness, technical health, crawlability and structured data.
Present
6/8 core fields
100/100
robots ✓ · sitemap ✓
Not detected
Fix these first
- → Complete your company profile so AI answers about you stay accurate.
viacep.com.br LLMS.txt
The llms.txt on viacep.com.br runs to 131 lines (6,419 characters) across 12 sections, last generated in August 2026. It introduces the site as "ViaCEP - Free Brazilian Address API". It tells AI engines the business works in Software & Internet, API Services and Address Validation. It describes 3 products, with prices such as CEP Lookup API at Free, Bulk Query Support at Free and Error Handling at Free. It targets Brazil and Latin America. Technologies it mentions include REST API, JSON and HTTP. The keywords it claims start with "cep api", "brazil address", "postal code lookup" and "correios data".
Status
Published
AI engines can read it
Lines
131
In the file
Size
6.4K
Characters
Sections
12
Updated Aug 25, 2026
What the file says
# ViaCEP - Free Brazilian Address API ## About ViaCEP provides a no-cost API that delivers complete Brazilian addresses from just a CEP code. Developers integrate it into forms, e-commerce checkouts, and apps needing reliable address data without paid services. The service sources data directly from official Correios records for accuracy nationwide. It requires zero authentication and returns clean JSON with street, neighborhood, city, and state details. No rate limits apply for most use cases, suiting startups and high-volume applications alike. E-commerce platforms use it for checkout flows while logistics firms verify deliveries and government apps streamline services. Bulk queries and error handling for invalid CEPs extend its utility beyond basic lookups. Integration examples in JavaScript, Python, and other languages lower the entry barrier. Global developers targeting Latin American markets rely on it for dependable postal data. The lightweight approach prioritizes uptime and speed over extra features. Reliability holds even during peak holiday periods with minimal downtime. Community contributions keep documentation and examples current and practical. It democratizes postal information access in contrast to data silos elsewhere. Competitors impose fees but ViaCEP remains free, sustained by goodwill and light ads. Countless MVPs have scaled into full businesses using th
Sections in the file
Areas of work
Keywords it claims
Technologies
Products it tells AI about
- CEP Lookup APIFree
- Bulk Query SupportFree
- Error HandlingFree
Competitors it names
Audience it targets
Brazil and Latin America
Company type
Private
viacep.com.br Organic Keywords
Google lists viacep.com.br for about 18 keywords, which together bring an estimated 106 organic visits a month.
Ranking keywords
18
Found in Google for this domain
Visits they bring
106
Estimated organic visits a month
Top ranking keywords
No ranked-keyword data cached for this domain yet.
Ranked Keywords pulls the full list on its first run.
What it ranks for
viacep.com.br SEO Audit
The latest technical audit of viacep.com.br scored 92 out of 100 overall. Accessibility is its weakest area at 76, while SEO scores highest at 100. The audit makes 12 recommendations in all, and 3 of the 4 listed first are rated high priority or critical.
Overall
Excellent
SEO
Excellent
Performance
Excellent
Accessibility
Fix these first
- CriticalImplement H1 Tags
- HighAdd Viewport Meta Tag
- HighCreate Developer Documentation
- MediumOptimize Internal Linking
8 more recommendations, with the exact changes and the pages they apply to, are in the full report.
viacep.com.br Competitors and Alternatives
ViaCEP's company profile names cepaberto.com, postmon.com.br, brasilapi.com.br and apicep.com as competitors. Its own llms.txt adds correios.com.br. Outside its market, the domains ranked closest to it in our worldwide ranking are claimsjournal.com, megaporn.com, mongabay.co.id and wocao.in.
viacep.com.br Traffic by Country
Which markets this brand actually serves, and where the web links to it from.
Top customer markets
AI estimate · live webWe only measure visitor geography for domains whose analytics are connected to us. For everyone else this is read live from the web and shown as an estimate — never mixed in with the measured numbers.
No market breakdown available for this brand.
Where its backlinks come from
Measured. The country each linking site is hosted in — a real signal of which regions know this brand.
No backlink sample for this domain yet.
Backlink Analytics collects one on its first run.
viacep.com.br Backlink Analytics
Who vouches for this domain. Strong, varied links are still the clearest signal of authority — to search engines and to AI engines that cite sources.
We haven't run a backlink crawl for viacep.com.br yet, so there are no link counts to show. Backlink Analytics builds the profile on its first run and it appears here after that.
—
links on file
Companies ranked next to viacep.com.br
Neighbours of #112,469 in our worldwide ranking — each with its own report.
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