WordPress.WP.I18n.NonSingularStringLiteralDomain
Non Singular String Literal Domain
A translation or text-domain pattern does not match WordPress internationalization expectations.
Why It Shows Up
Plugin Check found missing text domains, mismatched domains, missing translator comments, variable-only strings, placeholder issues, or deprecated translation loading patterns.
Why It Matters
Translation issues make the plugin harder to localize and can break strings for non-English WordPress users.
How to Fix
- Use the plugin slug as the text domain unless the plugin intentionally declares a different one.
- Keep translatable strings literal and move variables into placeholders.
- Add translator comments before strings with placeholders or ambiguous context.
References
Affected Plugins
| Rank | Plugin | Score | Errors | Warnings | Installs | Added | Updated | Top Issue |
|---|---|---|---|---|---|---|---|---|
| #101 | Featured Image from URL (FIFU) | 24 | 1,654 | 418 | 70k+ | Non Singular String Literal Domain | ||
| #102 | Fix Alt Text | 24 | 544 | 346 | 1k+ | Non Singular String Literal Domain | ||
| #103 | Gallery by BestWebSoft – Customizable Image and Photo Galleries for WordPress | 24 | 536 | 324 | 10k+ | Text Domain Mismatch | ||
| #104 | Easy Google Maps | 24 | 1,764 | 389 | 20k+ | Non Singular String Literal Domain | ||
| #105 | LearnPress – Backup & Migration Tool | 24 | 385 | 469 | 5k+ | Output is not escaped | ||
| #106 | Min and Max Quantity for WooCommerce | 24 | 614 | 456 | 20k+ | Text Domain Mismatch | ||
| #107 | Pagar.me para WooCommerce | 24 | 549 | 116 | 5k+ | Text Domain Mismatch | ||
| #108 | PeproDev Ultimate Invoice | 24 | 379 | 234 | 4k+ | Output is not escaped | ||
| #109 | RS WP Book Showcase – A Complete Book Catalogue & Library System | 24 | 910 | 343 | 1k+ | Text Domain Mismatch | ||
| #110 | SEO Engine – Smart SEO with AI, Schema & Redirection for WordPress | 24 | 236 | 304 | 1k+ | Direct Query | ||
| #111 | GEO Plugin by Squirrly SEO | 24 | 1,196 | 224 | 40k+ | Missing Translators Comment | ||
| #112 | Ultimate Maps by Supsystic | 24 | 1,034 | 374 | 10k+ | Non Singular String Literal Domain | ||
| #113 | Advanced Shipment Tracking for WooCommerce | 24 | 654 | 651 | 60k+ | Missing Arg Domain | ||
| #114 | Bulk Edit Products for WooCommerce – WP Sheet Editor | 24 | 941 | 936 | 10k+ | Text Domain Mismatch | ||
| #115 | pensopay Payments | 24 | 397 | 246 | 2k+ | Output is not escaped | ||
| #116 | EU VAT Assistant for WooCommerce | 24 | 1,742 | 495 | 5k+ | Non Singular String Literal Domain | ||
| #117 | WPML Multilingual & Multicurrency for WooCommerce | 24 | 1,453 | 1,618 | 100k+ | SQL query is not prepared | ||
| #118 | WP RSS Aggregator – RSS Import, Feed to Post, Autoblogging, AI Content | 24 | 1,775 | 393 | 40k+ | Text Domain Mismatch | ||
| #119 | Bulk Edit Posts and Products in Spreadsheet | 24 | 918 | 912 | 9k+ | Text Domain Mismatch | ||
| #120 | WP-Stateless – Google Cloud Storage | 24 | 1,036 | 482 | 4k+ | Non Singular String Literal Domain | ||
| #121 | Jetpack CRM – Clients, Leads, Invoices, Billing, Email Marketing, & Automation | 24 | 1,211 | 3,152 | 30k+ | Non-prefixed global variable | ||
| #122 | Advanced WordPress Reset – Debug, Recover & Reset WP | 25 | 475 | 464 | 20k+ | Output is not escaped | ||
| #123 | Affiliates | 25 | 689 | 1,483 | 2k+ | Output is not escaped | ||
| #124 | ATUM WooCommerce Inventory Management and Stock Tracking | 25 | 2,638 | 1,304 | 10k+ | Non Singular String Literal Domain | ||
| #125 | Booking Package | 25 | 1,700 | 3,977 | 10k+ | Missing nonce verification | ||
| #126 | Coupon Creator | 25 | 698 | 412 | 1k+ | Output is not escaped | ||
| #127 | DecaLog | 25 | 943 | 236 | 1k+ | Exception output is not escaped | ||
| #128 | Fluid Checkout for WooCommerce – Lite | 25 | 370 | 841 | 20k+ | Non-prefixed hook name | ||
| #129 | Lightbox & Modal Popup WordPress Plugin – FooBox | 25 | 610 | 1,365 | 100k+ | Non-prefixed global variable | ||
| #130 | Photo Gallery by FooGallery : Responsive Image Gallery, Masonry Gallery & Carousel | 25 | 876 | 1,798 | 100k+ | Non-prefixed global variable | ||
| #131 | FunnelKit – Funnel Builder for WooCommerce Checkout | 25 | 3,278 | 2,574 | 30k+ | Text Domain Mismatch | ||
| #132 | GeekyBot — AI Copilot, Chatbot, WooCommerce Lead Gen & Zero-Prompt Content | 25 | 87 | 863 | 6k+ | Non-prefixed global variable | ||
| #133 | WPBruiser {no- Captcha anti-Spam} | 25 | 646 | 259 | 10k+ | Non Singular String Literal Domain | ||
| #134 | Icegram Collect – Easy Form, Lead Collection and Subscription plugin | 25 | 424 | 290 | 2k+ | Output is not escaped | ||
| #135 | Index WP MySQL For Speed | 25 | 250 | 255 | 50k+ | Output is not escaped | ||
| #136 | Knit Pay – Cashfree, Instamojo, Razorpay, PayPal and more | 25 | 4,010 | 1,262 | 2k+ | Text Domain Mismatch | ||
| #137 | Limit Login Attempts Security – Login Security, 2FA, Firewall, Brute Force Prevention | 25 | 621 | 602 | 1m+ | Unsafe printing function | ||
| #138 | Media Cleaner: Clean your WordPress! | 25 | 151 | 391 | 90k+ | Direct Query | ||
| #139 | MyFatoorah – WooCommerce | 25 | 191 | 89 | 3k+ | Output is not escaped | ||
| #140 | Poll Maker by AYS – Versus Polls, Anonymous Polls, Image Polls | 25 | 486 | 1,414 | 7k+ | Non-prefixed global variable | ||
| #141 | Quiz Maker by AYS | 25 | 505 | 3,015 | 20k+ | Non-prefixed global variable | ||
| #142 | Smart Manager – Advanced WooCommerce Bulk Edit & Inventory Management | 25 | 387 | 935 | 10k+ | SQL query is not prepared | ||
| #143 | Stylish Cost Calculator – Quote Generator, Lead Gen & Price Estimator | 25 | 647 | 1,016 | 1k+ | Output is not escaped | ||
| #144 | Survey Maker by AYS | 25 | 566 | 2,397 | 6k+ | Non-prefixed global variable | ||
| #145 | Ultimate Post Kit Addons for Elementor | 25 | 182 | 412 | 30k+ | Missing nonce verification | ||
| #146 | Social Share Icons & Social Share Buttons | 25 | 2,365 | 1,357 | 10k+ | Output is not escaped | ||
| #147 | weForms – Easy Drag & Drop Contact Form Builder For WordPress | 25 | 916 | 450 | 10k+ | Output is not escaped | ||
| #148 | WP Airbnb Review Slider | 25 | 325 | 646 | 1k+ | Non-prefixed global variable | ||
| #149 | WP Coupons and Deals – WordPress Coupon Plugin | 25 | 914 | 1,460 | 1k+ | Non-prefixed global variable | ||
| #150 | WP Review Slider | 25 | 1,186 | 2,279 | 6k+ | Non-prefixed global variable |
