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Guest Post & Sponsor Post Finder – GPO Detector

Chrome extension by Guest Post On · Productivity · Tools

A Chrome extension in Productivity · Tools with 21 users, barely installed. Audience over the last 30 days: -5.

Specific sites only: 1 match pattern.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
21
Rating
5.0 (1 ratings)
Users, last 30 days
-5
Rating, last 30 days
Steady over 30 days
Version
4.2.4
Updated in the store
2026-10-04
Published
2025-10-25
Manifest
V3
Browser access
2 permissions, 1 site pattern

How it has moved

Users
-5 since 03.10
20-28 · 14 readings
2026-10-04: released 4.2.4
  1. 2026-10-0827
  2. 2026-10-0928
  3. 2026-10-1028
  4. 2026-10-1626
  5. 2026-10-1828
  6. 2026-10-1927
  7. 2026-10-2125
  8. 2026-10-2224
  9. 2026-10-2425
  10. 2026-10-2523
  11. 2026-10-2622
  12. 2026-10-2920
  13. 2026-11-0121
  14. 2026-11-0221
Rating
unchanged since 03.10
reviewsrating 5.00 · 14 readings
2026-10-04: released 4.2.4
  1. 2026-10-08reviews1rating5.00
  2. 2026-10-09reviews1rating5.00
  3. 2026-10-10reviews1rating5.00
  4. 2026-10-16reviews1rating5.00
  5. 2026-10-18reviews1rating5.00
  6. 2026-10-19reviews1rating5.00
  7. 2026-10-21reviews1rating5.00
  8. 2026-10-22reviews1rating5.00
  9. 2026-10-24reviews1rating5.00
  10. 2026-10-25reviews1rating5.00
  11. 2026-10-26reviews1rating5.00
  12. 2026-10-29reviews1rating5.00
  13. 2026-11-01reviews1rating5.00
  14. 2026-11-02reviews1rating5.00
Users
+4 since 31.08
16-28 · 28 readings
2026-10-01: released 4.2.32026-10-04: released 4.2.4
  1. 2026-08-3117
  2. 2026-09-0216
  3. 2026-09-0419
  4. 2026-09-0621
  5. 2026-09-0720
  6. 2026-09-0821
  7. 2026-09-0922
  8. 2026-09-1325
  9. 2026-09-1528
  10. 2026-09-1726
  11. 2026-09-2024
  12. 2026-09-2526
  13. 2026-09-2628
  14. 2026-09-2826
  15. 2026-10-0827
  16. 2026-10-0928
  17. 2026-10-1028
  18. 2026-10-1626
  19. 2026-10-1828
  20. 2026-10-1927
  21. 2026-10-2125
  22. 2026-10-2224
  23. 2026-10-2425
  24. 2026-10-2523
  25. 2026-10-2622
  26. 2026-10-2920
  27. 2026-11-0121
  28. 2026-11-0221
Rating
unchanged since 31.08
reviewsrating 5.00 · 28 readings
2026-10-01: released 4.2.32026-10-04: released 4.2.4
  1. 2026-08-31reviews1rating5.00
  2. 2026-09-02reviews1rating5.00
  3. 2026-09-04reviews1rating5.00
  4. 2026-09-06reviews1rating5.00
  5. 2026-09-07reviews1rating5.00
  6. 2026-09-08reviews1rating5.00
  7. 2026-09-09reviews1rating5.00
  8. 2026-09-13reviews1rating5.00
  9. 2026-09-15reviews1rating5.00
  10. 2026-09-17reviews1rating5.00
  11. 2026-09-20reviews1rating5.00
  12. 2026-09-25reviews1rating5.00
  13. 2026-09-26reviews1rating5.00
  14. 2026-09-28reviews1rating5.00
  15. 2026-10-08reviews1rating5.00
  16. 2026-10-09reviews1rating5.00
  17. 2026-10-10reviews1rating5.00
  18. 2026-10-16reviews1rating5.00
  19. 2026-10-18reviews1rating5.00
  20. 2026-10-19reviews1rating5.00
  21. 2026-10-21reviews1rating5.00
  22. 2026-10-22reviews1rating5.00
  23. 2026-10-24reviews1rating5.00
  24. 2026-10-25reviews1rating5.00
  25. 2026-10-26reviews1rating5.00
  26. 2026-10-29reviews1rating5.00
  27. 2026-11-01reviews1rating5.00
  28. 2026-11-02reviews1rating5.00

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 1 match pattern.

  • https://pressreleasewire.site/*
  • Schedule work to run later alarms
  • Store data in your browser storage

The full permission history for this extension

Version history

  1. Version 4.2.4 · Asked for fewer permissions (3, was 4)
  2. Version 4.2.3 · Asked for more permissions (4, was 3)

What changed recently

  1. Package size changed
  2. Asked for fewer permissions (3, was 4)
  3. Released version 4.2.4 (was 4.2.3)
Show the remaining 4
  1. Package size changed
  2. Asked for more permissions (4, was 3)
  3. Released version 4.2.3 (was 4.2.1)
  4. Store badges changed

The publisher

Guest Post On.

Like this one

Listings the catalog judges closest in what they say they do.

  1. Rankoom Guest Post Finder Describes nearly the same job, smaller audience 30 users ★ 5.0
  2. Guest Post Finder Pro Describes nearly the same job, smaller audience 22 users
  3. Backlink Search Tool Describes nearly the same job, smaller audience 463 users ★ 3.6
  4. Linkhouse SEO Backlink Finder Describes nearly the same job, smaller audience 711 users ★ 5.0
  5. LinkFlag — Instant SEO Stats, Guest Post Prices & Buy Now Describes nearly the same job, smaller audience 4 users (last published figure)

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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The badge shows the audience and rating from our last pass over the store and links back to this page.

Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/bnalhkaiimpkhpngffebhkhbjcmophhl/badge.svg)](https://extops.dev/extensions/bnalhkaiimpkhpngffebhkhbjcmophhl)

HTML

<a href="https://extops.dev/extensions/bnalhkaiimpkhpngffebhkhbjcmophhl"><img src="https://extops.dev/extensions/bnalhkaiimpkhpngffebhkhbjcmophhl/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-11-01. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built