Projects
Side projects and other work-things I’ve built, shipped, or keep tinkering with.
datespots.nyc
What?
A curated website dedicated exclusively to helping people quickly discover ideal date spots in and around New York City.
Why?
Initially inspired while writing a book on modern dating, I realized the section on finding exceptional date locations could be even more impactful if shared freely with New York City's 8.4 million residents-all seeking meaningful connections and memorable experiences.
Peak RPS: 200
codenza.app
What?
An Android app featuring a comprehensive collection of essential LeetCode-style questions, freely available for download and use - essentially a handy tool for quickly navigating programming classes you're less interested in.
Why?
A long-held idea with a friend, this app became reality after my university forced onto me a different project for my final year. So, we turned this concept into my friend's final-year project, making our vision accessible to fellow students looking to streamline their programming coursework.
Free version: about 490k total downloads. About 23k active users at peak.
Google removed the free version from the Play Store because I did not keep it updated. The paid version is still listed and active. I guess they are fine with it when they get a commission.
divyendra.com/check
What?
A free, no-signup domain and DNS checker: SPF, DMARC, DNSSEC, SSL/TLS certificate validity and expiry, CNAME, CAA, BIMI, DKIM, MX, IP, IPv6, ASN, and CDN detection for any domain. Shareable permalinks, copy/export to text, optional “also check www” and DKIM selector, and recent-domains list. Plus Subdomains from CT: discover hostnames that have had certificates issued (Certificate Transparency via crt.sh), same Worker backend.
Why?
I wanted a single place to quickly verify DNS and email auth (SPF/DMARC) and cert status without opening multiple tabs or tools. The backend is a Cloudflare Worker using DNS-over-HTTPS and Certificate Transparency (crt.sh); the front-end is static HTML/JS on this site.
DNS-over-HTTPS, Certificate Transparency (TLS + subdomains), ip-api (ASN/org). No API keys required.
divyendra.com/cloud-infra-map
What?
An interactive map of 780+ public cloud regions and CDN edge locations across sixteen providers-AWS, Azure, GCP, Oracle, Alibaba, IBM, Tencent, several VPS hosts, plus CloudFront, Cloudflare, Fastly, and Akamai. Toggle providers, filter region vs edge, dark/light tiles.
Why?
Useful as a visual reference when you’re thinking about global footprint, latency, or how edge networks compare to core regions. All static data in the page; no accounts or API keys.
Leaflet + CARTO raster tiles; client-side only.
sourcecidr.com
What?
A registry of curated links to official published IP ranges and network context for crawlers and bots, AI platforms, CDNs, cloud providers, and other services that document egress or crawler identity.
Why?
I created this as a single place to find canonical, source-of-truth range publications when you are allowlisting, debugging traffic, or comparing what vendors actually publish.
unsaidlines.com
What?
A small site for original poetry - poems, categories, archive, and search. Static, minimal, no sign-up.
Why?
A place to put the lines that don’t get said elsewhere.