diff --git a/README.md b/README.md
index 727972b..6a45a0b 100644
--- a/README.md
+++ b/README.md
@@ -14,6 +14,10 @@
`geoptimize` is a deterministic content-readiness lint for static websites and documentation. It checks reproducible properties such as document structure, sourced quantitative claims, structured-data hygiene, indexing controls, metadata quality, and repetitive wording — locally, in CI, or pre-commit.
+https://github.com/user-attachments/assets/5dafd888-92c9-428b-b372-62864c58059a
+
+30-second introduction · [Download the MP4](https://github.com/cucuwang/geoptimize/raw/refs/heads/main/marketing/geoptimize-preview-20260916/output/geoptimize-preview-v2.mp4) · [Video source and credits](https://github.com/cucuwang/geoptimize/tree/main/marketing/geoptimize-preview-20260916)
+
[](docs/assets/report-demo.html)
[Open the offline example](docs/assets/report-demo.html) · [After improvements](docs/assets/report-demo-after.html)
diff --git a/marketing/geoptimize-preview-20260916/.gitignore b/marketing/geoptimize-preview-20260916/.gitignore
new file mode 100644
index 0000000..0633bf4
--- /dev/null
+++ b/marketing/geoptimize-preview-20260916/.gitignore
@@ -0,0 +1,7 @@
+work/
+assets/soundtrack.wav
+output/*.wav
+output/silent.mp4
+output/stills/
+output/contact-sheet.jpg
+output/transitions-v2.jpg
diff --git a/marketing/geoptimize-preview-20260916/ATTRIBUTION.md b/marketing/geoptimize-preview-20260916/ATTRIBUTION.md
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+# Attribution and third-party licenses
+
+This geoptimize preview uses the motion-design workflow in
+[motion-web](https://github.com/feitangyuan/motion-web), by **feitangyuan**,
+at commit `5f4e40f1253e11e28850d08dce28b9b7e4320115`.
+
+The reference skill is licensed under
+[CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/).
+Its [repository license](https://github.com/feitangyuan/motion-web/blob/5f4e40f1253e11e28850d08dce28b9b7e4320115/LICENSE)
+applies to its prompts, cases, scripts and assets. This preview adapts the workflow
+to a fixed 30-second Canvas timeline with analytical springs, explicit seek controls,
+headless frame rendering and an MP4 export. It does not copy a demonstration case,
+its artwork, or its soundtrack. No endorsement is implied.
+
+This preview is shared as a demonstration of the free, open-source geoptimize
+project. The referenced motion-web license permits public open-source demonstration
+projects that do not generate commercial revenue. Commercial reuse must follow
+the applicable motion-web license conditions. The parent project's MIT license
+does not relicense motion-web material.
+
+Space Grotesk and Space Mono are supplied from the Google Fonts repository.
+The original SIL Open Font Licenses are included beside the font files.
+
+The soundtrack is original procedural synthesis. It uses no third-party samples,
+recordings or commercial songs. Its complete reproducible source is `soundtrack.py`.
+
+The product facts and demonstration counts come from geoptimize itself. The pinned
+source URLs and commit are in `source-data.json`. Onscreen scan results describe a
+synthetic three-page fixture, not a measured customer outcome.
diff --git a/marketing/geoptimize-preview-20260916/README.md b/marketing/geoptimize-preview-20260916/README.md
new file mode 100644
index 0000000..5aee21b
--- /dev/null
+++ b/marketing/geoptimize-preview-20260916/README.md
@@ -0,0 +1,79 @@
+# geoptimize video preview
+
+30-second English product film, 1920 × 1080, 30 fps. Playful typography, restrained
+spring motion, a moving document scan and an original instrumental soundtrack.
+The design retains geoptimize's dark ground and mint-green accent.
+
+https://github.com/user-attachments/assets/5dafd888-92c9-428b-b372-62864c58059a
+
+[Watch or download the current MP4](output/geoptimize-preview-v2.mp4) ·
+[First preview](output/geoptimize-preview-v1.mp4) ·
+[Attribution and licenses](ATTRIBUTION.md)
+
+The intended viewer is a developer maintaining a static website or documentation.
+The film introduces a first local scan and ends with the npm installation command.
+It uses verified public demonstration data and makes no search-outcome claims.
+
+## Files
+
+- `output/geoptimize-preview-v2.mp4`: current review copy with sound and varied transitions.
+- `output/geoptimize-preview-v1.mp4`: preserved first preview.
+- `index.html`, `scene.js`: editable Canvas source and accessible local player.
+- `source-data.json`, `source-notes.md`: pinned public product evidence.
+- `soundtrack.py`: original deterministic 128 BPM music.
+- `ATTRIBUTION.md`: motion-web credit, font licenses and preview usage scope.
+- `output/verification.json`: dimensions, duration, stream properties and hashes.
+- `output/verification-v2.json`, `output/layout-audit-v2.json`: current media and text-layout readback.
+
+## Reproduce
+
+Requires Node, Puppeteer Core, Chrome, FFmpeg and Python with NumPy. The parent
+checkout already has Puppeteer Core. `GEO_CHROME` can select a Chrome executable.
+No global dependency installation is needed in the producing workspace.
+
+```sh
+python3 soundtrack.py
+node render.mjs
+ffmpeg -y -i output/silent.mp4 -i assets/soundtrack.wav -map 0:v -map 1:a -c:v copy -c:a aac -b:a 192k -t 30 -movflags +faststart output/geoptimize-preview-v2.mp4
+```
+
+`node render.mjs --stills` writes representative frames only. Rendering runs through
+an ephemeral loopback HTTP server which is closed on completion. Every frame is
+evaluated at its exact timestamp; no mouse operation or live webpage is recorded.
+
+The optional HTML player starts paused, including under reduced motion. Serve this
+folder over a local HTTP server to use its play, seek and sound controls. The MP4 is
+the primary review artifact and requires no server.
+
+## Editorial structure
+
+| Seconds | Content |
+| --- | --- |
+| 0–4.7 | A page looks ready; a closer scan reveals a reason to check. |
+| 4.7–9.4 | geoptimize introduction and its local scan command. |
+| 9.4–15 | The actual synthetic fixture's five readiness dimensions. |
+| 15–21 | Editing the fixture and comparing two concrete finding counts. |
+| 21–25.3 | Local scans, offline reports and the existing CI capability. |
+| 25.3–30 | Brand, installation command and repository URL. |
+
+The overall score is not shown increasing, since the fixture's later score reflects
+several content changes beyond the two findings highlighted in the video.
+
+Each boundary now has its own motion: circular reveal, terminal opening,
+horizontal push, diagonal sweep and a small zoom into a beat cut. Incoming scene
+clocks continue through the boundary rather than restarting. Heading travel is
+bounded to its own area so it cannot cross a fixed caption.
+
+## Validation scope
+
+The video is a stylized product explanation, not a literal screen recording.
+Validation checks the rendered frames, playback duration, codec, sound levels,
+source-data consistency and deterministic frame output. It does not claim new
+runtime validation of geoptimize's CLI or a released marketing campaign.
+
+The v2 layout pass checks transformed font-glyph boxes in all 900 frames, along
+with settled text against the safe area and its own clipping region. Text pairs
+are checked within each scene; the opaque transition masks intentionally replace
+one scene with the next. The tiny HTML labels in overlapping paper illustrations
+are decorative and excluded from the glyph-pair audit. Representative mid-transition
+frames are also reviewed visually.
diff --git a/marketing/geoptimize-preview-20260916/assets/SpaceGrotesk-OFL.txt b/marketing/geoptimize-preview-20260916/assets/SpaceGrotesk-OFL.txt
new file mode 100644
index 0000000..d5666d7
--- /dev/null
+++ b/marketing/geoptimize-preview-20260916/assets/SpaceGrotesk-OFL.txt
@@ -0,0 +1,93 @@
+Copyright 2020 The Space Grotesk Project Authors (https://github.com/floriankarsten/space-grotesk)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
diff --git a/marketing/geoptimize-preview-20260916/assets/SpaceGrotesk.ttf b/marketing/geoptimize-preview-20260916/assets/SpaceGrotesk.ttf
new file mode 100644
index 0000000..a1b2e6c
Binary files /dev/null and b/marketing/geoptimize-preview-20260916/assets/SpaceGrotesk.ttf differ
diff --git a/marketing/geoptimize-preview-20260916/assets/SpaceMono-OFL.txt b/marketing/geoptimize-preview-20260916/assets/SpaceMono-OFL.txt
new file mode 100644
index 0000000..389d65c
--- /dev/null
+++ b/marketing/geoptimize-preview-20260916/assets/SpaceMono-OFL.txt
@@ -0,0 +1,93 @@
+Copyright 2016 The Space Mono Project Authors (https://github.com/googlefonts/spacemono)
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded,
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
diff --git a/marketing/geoptimize-preview-20260916/assets/SpaceMono.ttf b/marketing/geoptimize-preview-20260916/assets/SpaceMono.ttf
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diff --git a/marketing/geoptimize-preview-20260916/index.html b/marketing/geoptimize-preview-20260916/index.html
new file mode 100644
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+++ b/marketing/geoptimize-preview-20260916/index.html
@@ -0,0 +1,39 @@
+
+
+
Looks ready. Let's check. Scan a built website with npx geoptimize scan ./dist --dir. See five content-readiness dimensions, inspect findings and compare the same demonstration site after editing. Scan locally and save offline reports.
+
The scan shown uses a synthetic three-page site. Content-readiness scores are heuristic checks; search visibility and AI citations require separate measurement.