{
  "company": {
    "name": "Mainstack",
    "website": "https://mainstack.co/",
    "record": "https://startuphistory.org/c/mainstack.co"
  },
  "status": null,
  "history_since": "2015-08-13T13:41:56.000Z",
  "baseline": {
    "snapshot_id": "a805f2f02970a06a6bd89f8d0041b40dffcb599bb7523d1bb876fd4a56aea67e",
    "observed_at": "2015-08-13T13:41:56.000Z",
    "headline": "Martial Arts School Software Everything you need, nothing you don't.",
    "description": "Simple martial arts software to track attendance & belt promotions, bill students and schedule tasks for yourself and staff. Sign up for free in seconds.",
    "evidence": "https://web.archive.org/web/20150813134156/http://www.mainstack.co/",
    "evidence_kind": "internet_archive",
    "facts": null,
    "basis": "first_observation",
    "is_change": false
  },
  "live_captures": 0,
  "last_checked": null,
  "live_status": "js_only",
  "messaging": [
    {
      "quote_observed_at": "2015-08-13T13:41:56.000Z",
      "variants": [
        {
          "headline": "Martial Arts School Software Everything you need, nothing you don't.",
          "subhead": "Simple martial arts software to track attendance & belt promotions, bill students and schedule tasks for yourself and staff. Sign up for free in seconds.",
          "observed_at": "2015-08-13T13:41:56.000Z",
          "evidence": "https://web.archive.org/web/20150813134156/http://www.mainstack.co/",
          "evidence_kind": "internet_archive"
        }
      ],
      "headline": "Martial Arts School Software Everything you need, nothing you don't.",
      "subhead": "Simple martial arts software to track attendance & belt promotions, bill students and schedule tasks for yourself and staff. Sign up for free in seconds.",
      "from": "2015-08-13T13:41:56.000Z",
      "to": "2015-08-13T13:41:56.000Z",
      "captures": 1,
      "evidence": "https://web.archive.org/web/20150813134156/http://www.mainstack.co/",
      "evidence_kind": "internet_archive",
      "seen": {
        "on": "2015-08-13T13:41:56.000Z"
      },
      "current": false
    },
    {
      "quote_observed_at": "2019-07-18T07:46:26.000Z",
      "variants": [
        {
          "headline": "Productos nuevos para octubre",
          "subhead": "personalidad ROSE GRADIENT POLARIZED Gafas de Sol Oakley OO9298 HOLD ON 929802 POLISHED BLACK",
          "observed_at": "2017-10-13T11:41:38.000Z",
          "evidence": "https://web.archive.org/web/20171013114138/http://www.mainstack.co/",
          "evidence_kind": "internet_archive"
        },
        {
          "headline": "Productos nuevos para abril",
          "subhead": "personalidad ROSE GRADIENT POLARIZED Gafas de Sol Oakley OO9298 HOLD ON 929802 POLISHED BLACK",
          "observed_at": "2018-04-12T05:25:37.000Z",
          "evidence": "https://web.archive.org/web/20180412052537/http://www.mainstack.co/",
          "evidence_kind": "internet_archive"
        },
        {
          "headline": "Productos nuevos para enero",
          "subhead": "personalidad ROSE GRADIENT POLARIZED Gafas de Sol Oakley OO9298 HOLD ON 929802 POLISHED BLACK",
          "observed_at": "2019-01-12T00:12:45.000Z",
          "evidence": "https://web.archive.org/web/20190112001245/http://www.mainstack.co/",
          "evidence_kind": "internet_archive"
        },
        {
          "headline": "Productos nuevos para julio",
          "subhead": "personalidad ROSE GRADIENT POLARIZED Gafas de Sol Oakley OO9298 HOLD ON 929802 POLISHED BLACK",
          "observed_at": "2019-07-18T07:46:26.000Z",
          "evidence": "https://web.archive.org/web/20190718074626/http://www.mainstack.co/",
          "evidence_kind": "internet_archive"
        }
      ],
      "headline": "Productos nuevos para julio",
      "subhead": "personalidad ROSE GRADIENT POLARIZED Gafas de Sol Oakley OO9298 HOLD ON 929802 POLISHED BLACK",
      "from": "2017-10-13T11:41:38.000Z",
      "to": "2019-07-18T07:46:26.000Z",
      "captures": 4,
      "evidence": "https://web.archive.org/web/20190718074626/http://www.mainstack.co/",
      "evidence_kind": "internet_archive",
      "seen": {
        "between": {
          "from": "2017-10-13T11:41:38.000Z",
          "to": "2019-07-18T07:46:26.000Z"
        }
      },
      "current": false
    },
    {
      "quote_observed_at": "2023-01-24T19:05:44.000Z",
      "variants": [
        {
          "headline": "Mainstack®︁ - Showcase your works with one-page site.",
          "subhead": "Creators & Entrepreneurs use Mainstack to showcase their incredible works without writing codes.",
          "observed_at": "2023-01-24T19:05:44.000Z",
          "evidence": "https://web.archive.org/web/20230124190544/https://mainstack.co/",
          "evidence_kind": "internet_archive"
        }
      ],
      "headline": "Mainstack®︁ - Showcase your works with one-page site.",
      "subhead": "Creators & Entrepreneurs use Mainstack to showcase their incredible works without writing codes.",
      "from": "2023-01-24T19:05:44.000Z",
      "to": "2023-01-24T19:05:44.000Z",
      "captures": 1,
      "evidence": "https://web.archive.org/web/20230124190544/https://mainstack.co/",
      "evidence_kind": "internet_archive",
      "seen": {
        "on": "2023-01-24T19:05:44.000Z"
      },
      "current": false
    },
    {
      "quote_observed_at": "2024-07-13T09:28:32.000Z",
      "variants": [
        {
          "headline": "Mainstack - Modern Software and Embedded Payments for Entrepreneurs",
          "subhead": "The all-in-one platform for entrepreneurs, creators, and businesses to showcase their work, sell products and services with global payment options. Build your community, and track analytics.",
          "observed_at": "2024-02-23T21:04:43.000Z",
          "evidence": "https://web.archive.org/web/20240223210443/https://www.mainstack.co/",
          "evidence_kind": "internet_archive"
        },
        {
          "headline": "Mainstack - Modern Software and Embedded Payments for Entrepreneurs",
          "subhead": "The all-in-one platform for entrepreneurs, creators, and businesses to showcase their work, sell products and services with global payment options. Build your community, and track analytics.",
          "observed_at": "2024-07-13T09:28:32.000Z",
          "evidence": "https://web.archive.org/web/20240713092832/https://www.mainstack.co/",
          "evidence_kind": "internet_archive"
        }
      ],
      "headline": "Mainstack - Modern Software and Embedded Payments for Entrepreneurs",
      "subhead": "The all-in-one platform for entrepreneurs, creators, and businesses to showcase their work, sell products and services with global payment options. Build your community, and track analytics.",
      "from": "2024-02-23T21:04:43.000Z",
      "to": "2024-07-13T09:28:32.000Z",
      "captures": 2,
      "evidence": "https://web.archive.org/web/20240713092832/https://www.mainstack.co/",
      "evidence_kind": "internet_archive",
      "seen": {
        "between": {
          "from": "2024-02-23T21:04:43.000Z",
          "to": "2024-07-13T09:28:32.000Z"
        }
      },
      "current": true
    }
  ],
  "changes": [
    {
      "n": 1,
      "id": "page-a805f2f02970a06a6bd89f8d0041b40dffcb599bb7523d1bb876fd4a56aea67e:835c79dbd1a6fc4270177b2c144d855d3493042dfa9e2998e0c08b80f48b0daf:headline:80336345b982b702",
      "before_evidence": "https://web.archive.org/web/20150813134156/http://www.mainstack.co/",
      "before_evidence_kind": "internet_archive",
      "kind": "headline",
      "label": "Headline",
      "summary": "Changed its homepage headline from “Martial Arts School Software Everything you need, nothing you don't.” to “Productos nuevos para octubre”.",
      "between": {
        "from": "2015-08-13T13:41:56.000Z",
        "to": "2017-10-13T11:41:38.000Z"
      },
      "evidence": "https://web.archive.org/web/20171013114138/http://www.mainstack.co/",
      "evidence_kind": "internet_archive",
      "basis": "page_facts",
      "topic": null
    },
    {
      "n": 2,
      "id": "page-c90488aac60565ae40d7458ace80009eaacc4f499f83d8f6aa05f1911eb7a4be:fe19d669502111b8f22374e86c5055bde6519691ccebbedd7c75a8faf6aa999a:headline:423ec985aef8990d",
      "before_evidence": "https://web.archive.org/web/20230124190544/https://mainstack.co/",
      "before_evidence_kind": "internet_archive",
      "kind": "headline",
      "label": "Headline",
      "summary": "Changed its homepage headline from “Mainstack®︁ - Showcase your works with one-page site.” to “Mainstack - Modern Software and Embedded Payments for Entrepreneurs”.",
      "between": {
        "from": "2023-01-24T19:05:44.000Z",
        "to": "2024-02-23T21:04:43.000Z"
      },
      "evidence": "https://web.archive.org/web/20240223210443/https://www.mainstack.co/",
      "evidence_kind": "internet_archive",
      "basis": "page_facts",
      "topic": null
    },
    {
      "n": 3,
      "id": "page-c90488aac60565ae40d7458ace80009eaacc4f499f83d8f6aa05f1911eb7a4be:fe19d669502111b8f22374e86c5055bde6519691ccebbedd7c75a8faf6aa999a:gtm:74f755ba679ab708",
      "before_evidence": "https://web.archive.org/web/20230124190544/https://mainstack.co/",
      "before_evidence_kind": "internet_archive",
      "kind": "gtm",
      "label": "Go-to-market",
      "summary": "Added a free sign-up or free trial.",
      "between": {
        "from": "2023-01-24T19:05:44.000Z",
        "to": "2024-02-23T21:04:43.000Z"
      },
      "evidence": "https://web.archive.org/web/20240223210443/https://www.mainstack.co/",
      "evidence_kind": "internet_archive",
      "basis": "page_facts",
      "topic": "https://startuphistory.org/t/added-free-trial"
    }
  ],
  "update": {
    "headline": "Mainstack updated homepage messaging and sign-up model",
    "summary": "Mainstack revised its homepage headline and added a free sign-up or trial, with earlier messaging focused on different themes.",
    "points": [
      {
        "text": "Between January 2023 and February 2024, Mainstack changed its homepage headline from “Mainstack®︁ - Showcase your works with one-page site.” to “Mainstack - Modern Software and Embedded Payments for Entrepreneurs”.",
        "kind": "fact",
        "changes": [
          2
        ]
      },
      {
        "text": "Between January 2023 and February 2024, Mainstack added a free sign-up or free trial.",
        "kind": "fact",
        "changes": [
          3
        ]
      },
      {
        "text": "This combination of a new headline and a free sign-up or free trial between January 2023 and February 2024 suggests Mainstack may be emphasizing software and embedded payments for entrepreneurs with a self-serve entry point.",
        "kind": "interpretation",
        "changes": [
          2,
          3
        ]
      },
      {
        "text": "Between August 2015 and October 2017, Mainstack’s homepage headline changed from “Martial Arts School Software Everything you need, nothing you don't.” to “Productos nuevos para octubre”.",
        "kind": "fact",
        "changes": [
          1
        ]
      }
    ],
    "written_at": "2026-11-07T20:55:28.748Z",
    "basis": "ai_analysis",
    "model": "gpt-5.1-2025-11-13"
  },
  "method": {
    "version": "messaging-v1",
    "description": "https://startuphistory.org/method"
  },
  "license": "CC-BY-4.0",
  "cite": "StartupHistory, “Mainstack” company record, https://startuphistory.org/c/mainstack.co"
}