Last updated: May 24, 2026
π CalcHub Changelog
What's new: Track every update to CalcHub β calculator launches, comparison guides, schema improvements, voice-search readiness, API endpoints, and infrastructure. Updated with each release. Subscribe via
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Sprint 6 Β· Content Expansion
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May 24, 2026
+6 Compare Guides (Wave 3) + Changelog + Glossary Expansion
Added
6 new Compare guides (now 22 total): 401(k) vs Roth 401(k) , Lump Sum vs Annuity , Salary vs Hourly , Condo vs House , Paying Cash vs Financing , Credit Card vs Personal Loan
Public /changelog/ page (this page) β freshness signal for Google + transparency for users
Glossary expanded from 50 to 65+ terms β added APY, CDS, FOMC, Term Life, ARM, GAP, IBAN, ROI types, and more
Sprint 5 Β· Infrastructure
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May 24, 2026
Critical Deploy Fix + Service Files + UX Widgets
Fixed
deploy.yml workflow : previous 3 deploys hung 6h on SFTP and auto-killed. Now uses timeout-minutes: 20, --only-newer (no slow remote scan), --parallel=4, net:timeout 30. Now fails-fast or completes in <15 min.
robots.txt : removed wrong Disallow: /api/ (was blocking our new API hub), removed Disallow: /*.json$ (was blocking /api/data/), added 2nd Sitemap entry for images.
Added
π₯ "Trending Now" widget on homepage β localStorage-driven top-5 calcs
π° "Recently Updated" widget on blog index β 5 newest + RSS/Atom CTA
humans.txt, security.txt (RFC 9116), /.well-known/security.txt
sitemap-images.xml for Google Images
Organization schema enrichment: ContactPoint, sameAs, alternateName, foundingDate
Person schema enrichment: alumniOf, hasCredential for all 4 authors
DNS-prefetch for GTM/GA + preload for Google Fonts
Sprint 4 Β· Developer + Feeds
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May 17, 2026
/api/ Hub + RSS/Atom Feeds + Cross-Linking
Added
/api/ β free static JSON endpoints for developers (WebAPI schema, 8 endpoint cards with JS examples)
/api/docs/ β interactive Try-It widget
8 JSON data files: tax-brackets-2026, mortgage-rates, bmi-categories, heart-rate-zones, tdee-multipliers, compound-interest-frequencies, pregnancy-trimesters, currency-symbols
RSS 2.0 + Atom 1.0 feeds (30 items each) with rel=alternate auto-discovery
"Embed this calculator" CTA on all 98 calculator pages
"Related Comparisons" widget on all 98 calculators (2-3 cards each)
Visible breadcrumbs UI on 58 more pages (16 compare + 30 blog + 12 categories)
Sprint 3 Β· E-E-A-T + Voice
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May 17, 2026
Authors Hub + Person Schema + Speakable + Wave 2 Compare
Added
/authors/ hub with 4 expert editors (Sarah Mitchell CPA, Dr. James Chen RD, Marcus Webb broker, Elena Rodriguez educator)
Person JSON-LD schema + visible "By {Author}" byline on all 30 blog articles
8 more Compare guides (Wave 2) β APR vs APY, HSA vs FSA, ETFs vs Mutual Funds, and more
Speakable JSON-LD on 144 FAQPage blocks for voice-search readiness
Visible breadcrumb UI on all 98 calculators
Header dropdown + footer updated on 158 pages with new section links
Sprint 2 Β· Content Expansion
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May 17, 2026
+18 Pages: Compare Wave 1, Glossary, Search, Embed, 404, Listicles
Added
8 Compare guides (Wave 1): BMI vs Body Fat, Roth vs Traditional IRA, 15-vs-30 mortgage, Avalanche vs Snowball, and more
/glossary/ hub with 50 terms and 130+ calculator backlinks
/search/ β fuzzy multi-token site search (140-entry JSON index)
/embed/ β iframe generator for embedding calcs on other sites (98 calcs in select, live preview, copy-to-clipboard)
Custom 404 page with search + popular calc cards
5 listicle blog articles: Top 10 Financial, 7 Best Health, 12 Homebuyer, 8 Freelancer, 6 Student
Sprint 1 Β· Critical SEO
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May 17, 2026
SEO Foundation Fixes β Title, OG Image, Schema, AI Ready
Fixed
Homepage title "78+ Tools" β "98 Free Tools" (12 instances updated)
og:image SVG β PNG (1200Γ630) β was breaking social shares on Facebook/Twitter/LinkedIn
Removed broken SearchAction schema (was pointing to /search before it existed)
calculator-landing-backup.html β added noindex + canonical to /
Added canonical URLs to 61 calculators that were missing them
Added
BreadcrumbList schema on 5 new calcs
AggregateRating schema (zΓrochks in SERP) on all 98 calculators
llms.txt + llms-full.txt (AI search readiness β GPTBot, ClaudeBot, PerplexityBot)
Quick Answer / TL;DR blocks on all 25 blog articles
"Last Updated" visible timestamps on all 141 pages
Service Worker SHELL_ASSETS expanded 5 β 30 URLs (better offline coverage)
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π Project Stats
Since launch (December 2025):
188 pages currently on the site (started with 141)
22 comparison guides covering long-tail "X vs Y" search queries
50+ glossary terms with internal-linking to calculators
30 blog articles from 4 expert authors
8 public JSON endpoints for developer use
RSS + Atom feeds for content syndication
11 AI crawlers allowed in robots.txt (GPTBot, ClaudeBot, PerplexityBot, etc.)
156 pages with visible breadcrumb navigation
144 pages with Speakable schema for voice search