Why does my government PDF show a yellow question mark?

Indian government PDFs are digitally signed using certificates from NIC, eMudhra, or other CCA India licensed authorities. Adobe Acrobat and most PDF viewers don't include India's Root Certifying Authority (RCAI) in their default trusted certificate store. So even though the signature is completely valid and legally recognised under the Information Technology Act 2000, your PDF viewer shows a yellow question mark because it cannot automatically verify the issuer. Kagazo checks your PDF against the actual CCA India trust hierarchy and gives you a copy with a permanent green tick visible on any device.

Is my document safe? Do you store my PDF?

Your PDF is processed entirely in memory during verification. We never write your file to disk, never store it on our servers, and never share it with any third party. The file is deleted from memory immediately after verification is complete. You can also verify this by checking our open source backend code.

Which documents does Kagazo support?

Kagazo supports any PDF digitally signed under India's CCA certificate hierarchy. This includes e-Aadhaar, PAN card, DigiLocker documents, ITR-V, Form 16, and all state government certificates from Tamil Nadu e-District, AP and Telangana MeeSeva, Karnataka Nadakacheri and eJanma, Kerala Sevana portal, and more.

My Aadhaar PDF is password protected. Will it work?

Yes. Enter your Aadhaar password (first four letters of your name in capital letters followed by your birth year, for example RAMA1995) in the password field that appears after you upload your e-Aadhaar PDF. We decrypt it in memory, verify the signature, and return a verified copy.

What is the difference between "Signature Valid" and "Signature Unknown"?

Signature Valid means the document is genuinely issued by the government authority and has not been modified. Signature Unknown means your PDF viewer cannot verify the certificate chain — this is a viewer configuration issue, not a problem with your document. Signature Invalid means the document may have been tampered with or re-saved after signing.

Does this work on mobile?

Yes. Kagazo is fully mobile responsive and works on any Android or iOS browser. No app installation required. Simply open kagazo.in on your phone browser, upload your PDF and verify instantly.

BGP Routing • Autonomous System & ISP Intelligence

IP Address Lookup & Geolocation

Trace any IPv4 or IPv6 address worldwide. Uncover geographic location, ISP organization, Autonomous System Number (ASN), and reverse DNS hostnames.

City & Country Geolocation ASN & ISP Provider Instant "My IP" Detection

Quick samples:

Understanding IP Address Attributes

Every device communicating on the internet operates through a structured addressing protocol:

IPv4 vs IPv6

IPv4 uses 32-bit addresses (e.g. 172.217.16.206), while IPv6 uses 128-bit hexadecimal notations (e.g. 2607:f8b0:4005:805::200e) providing 340 undecillion unique IP addresses.

Autonomous Systems (ASN)

An Autonomous System is a collection of connected Internet Protocol routing prefixes controlled by network operators (e.g., Telecom providers, AWS, Cloudflare).

Reverse DNS (PTR)

PTR records resolve an IP address backward to its designated domain name, essential for mail servers to avoid spam blacklists.

Geolocation Precision

Location data is derived from regional IP allocation databases, ISP registration records, and network latency triangulations.

Frequently Asked Questions

How accurate is IP geolocation?

IP geolocation is typically 99% accurate at the country level and 80–90% accurate at the city/state level. It reflects the registration and routing points of the Internet Service Provider (ISP), rather than a specific physical street address (for user privacy).

What is an Autonomous System Number (ASN)?

An ASN is a unique global identifier assigned by regional internet registries (like ARIN or RIPE) to networks that control their own routing policies via BGP (Border Gateway Protocol). For example, AS15169 belongs to Google and AS13335 belongs to Cloudflare.

Can I check my own public IP address?

Yes! Simply click the "My IP" button, and Kagazo will immediately detect and analyze your current public IPv4/IPv6 connection.

What is Reverse DNS (rDNS)?

Reverse DNS looks up the domain name associated with an IP address using PTR (Pointer) records in the in-addr.arpa or ip6.arpa DNS zones. It is commonly used for anti-spam mail server verification.