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Website captures are usually files first and cloud objects second: save the capture in a format suited to your needs, then copy or upload it to a destination you control. For Amazon S3, that can mean uploading an exported WARC, a capture-tool archive directory, or static HTML and its assets. For FTP, use a separate FTP or SFTP client; the capture tools covered here document exporting files, not a built-in FTP destination.
Choose what you are exporting before choosing where it goes
“Website capture” can mean a screenshot, a document for reading, a collection of page assets, or a preservation archive. These are not interchangeable. A PDF is convenient to read and share, but it is not a replayable record of the web responses. A WARC is designed to hold web-archive data and crawl metadata. A directory of HTML, CSS, JavaScript, and assets is useful when you want to serve a static copy, but it is not automatically equivalent to a WARC.
| Goal | Useful representation | Important trade-off |
|---|---|---|
| Share, print, or annotate a capture | Convenient presentation, not a faithful replay container. | |
| Read a saved page as one desktop-friendly file | MHTML or WebArchive | Portability depends on the software used to open it. |
| Preserve captured responses and crawl metadata | WARC | It is an archive format, not a ready-made public website. |
| Serve a static copy of a site | HTML/CSS/JavaScript and associated assets | Files must retain their paths and references to one another. |
| Keep a local working backup | The capture tool’s complete archive directory | Keep the folder structure intact; copying only the visible page file can omit assets or metadata. |
ArchiveBox can retain multiple artifacts, including original HTML/CSS/JavaScript, SingleFile HTML, screenshots, PDFs, WARC files, titles, article text, favicons, headers, and media. Its snapshots are stored as ordinary files in per-snapshot folders. WebsiteArchiver documents PDF, WARC, WebArchive, and MHTML export on macOS, along with Markdown conversion; it also supports exporting a whole crawl as a combined PDF or WARC. Choose an export available in your own edition and workflow, then confirm that the resulting file or folder contains what you intend to preserve.
Export from the capture tool and make a durable local copy
- Capture the pages. ArchiveBox accepts URLs from browser extensions, apps, scheduled imports, and text-based files. Check the saved snapshot folder rather than assuming a single HTML file represents the entire capture.
- Select the export format. Use PDF for a presentation copy, MHTML or WebArchive for a single-file reading copy, WARC for preservation and replay workflows, or a directory of static files when you intend to serve a static site.
- Copy the complete output. For a directory-based archive, copy the directory as a unit and preserve its names and hierarchy. WebsiteArchiver exports are ordinary files that can be copied or backed up. ArchiveBox documents storing its archive folder on an external hard drive or network mount.
- Open or inspect the copy before removing the original. Check that expected files exist and that the chosen reader or archive workflow can use them. For WARC files from Archive-It, verify the downloaded files with the checksums supplied by WASAPI before deleting the source copy.
A local external hard drive is useful as a separate backup destination, but it is not a substitute for checking the copy. For a capture folder, compare the copied folder contents and sizes with the source. For a WARC download with checksum metadata, calculate the corresponding checksum locally and compare it with the supplied value. Keep the original until that verification succeeds.
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Upload a capture or archive to Amazon S3
Amazon S3 can store exported files and can host static website files. These are different uses. If the goal is retention, keep the objects private unless there is a reason to publish them. If the goal is a public static site, upload the site files with their directory paths and assets preserved; a WARC object in a bucket does not become a browsable replay site just because it is stored there.
- Decide what the bucket should contain. Upload one WARC object, a PDF, or the contents of a capture directory depending on your preservation or publishing goal. Avoid mixing unrelated snapshots without a naming scheme.
- Set the destination and access deliberately. Use a private bucket for archival retention unless public access is intended. Public static hosting exposes the content; do not place private captures or sensitive page data in a public location.
- Transfer using an S3-compatible client or API. The capture export and the cloud upload are separate steps. The capture tools described here document file exports and copying; they do not establish a native S3 upload command.
- Verify the uploaded objects. Confirm the expected object names, sizes, and paths in the destination. For WARC from Archive-It, retain and check the available checksum metadata before removing the source download.
When publishing a static copy, the folder layout matters: an HTML file that references assets/style.css will not render correctly if the asset was uploaded under a different key. S3 static-website endpoints serve content over HTTP rather than HTTPS. AWS recommends Amplify Hosting with CloudFront for secure HTTPS delivery. Do not treat a raw S3 website endpoint as an HTTPS endpoint.
What to store in S3 for common workflows
- Long-term preservation: retain the WARC and its related metadata, and keep checksum information with the archive record.
- Easy reading: retain a PDF or MHTML/WebArchive export alongside any more complete archive you need.
- Static publication: upload the HTML and all referenced assets with paths preserved, then choose an HTTPS-capable publishing arrangement if secure delivery is required.
- Working copy: store the whole capture directory rather than cherry-picking files whose relationships may not be obvious.
Transfer a capture by FTP or SFTP
FTP is a transfer step, not an export format. The capture tools described here document exporting files and copying them; they do not establish a native FTP destination. Export the file or directory first, then use an FTP or SFTP client or script to move it. SFTP is a separate protocol from FTP, so confirm which one your destination supports.
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- Export the capture to a local file or directory.
- Connect to the destination with an FTP/SFTP client using the protocol and account details provided by your host.
- Upload the complete file or folder tree. Preserve binary files and directory names; WARC, PDF, image, and archive files must not be treated as text transfers.
- Compare remote filenames and sizes with the local export. If the service provides checksums, verify them before deleting the local copy.
For a large crawl, do not assume that one file represents the whole archive. Archive-It notes that an individual WARC is no bigger than 1 GB and that a crawl can generate multiple WARCs. Transfer and verify every file belonging to the crawl, along with its metadata, rather than uploading only the first WARC you find.
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Move an Archive-It crawl to storage you control
For an Archive-It download, use the download details exposed through WASAPI to keep the file inventory together: filenames, sizes, checksums, crawl/store timestamps, and download locations. Download the relevant WARC files and metadata, then compare each file against its supplied MD5 or SHA-1 value. Do not delete the source copy until the downloaded files pass verification and a second copy exists at the intended destination.
WARC is a container for web archives. It preserves data as returned from the web server and can include metadata used for integrity checking; Common Crawl describes WARC as storing HTTP responses, request information, and crawl metadata. That makes it a better fit than a PDF when the objective is to retain a crawl for preservation or replay workflows. It does not mean every WARC can be opened like a PDF or served as a static site without an appropriate reader.
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Make storage choices around fidelity, access, and verification
- Fidelity: choose WARC when retaining captured responses and crawl metadata matters; choose PDF when the reader mainly needs a fixed presentation.
- Portability: MHTML and WebArchive bundle content for desktop reading, while a static site or capture archive may rely on a directory tree. Keep that tree intact.
- Access control: a private bucket or local disk is appropriate for non-public retention. Public static hosting is a publication decision, not just a backup setting.
- Transfer method: use an S3 client/API for S3, or an FTP/SFTP client for those destinations. Exporting and transferring are separate operations.
- Verification: use checksums when supplied, especially for institutional WARC downloads, and retain timestamps and metadata with the files they describe.
Troubleshoot common export and transfer problems
The uploaded page is missing images or styling
This usually means only the HTML file was moved, or the asset paths changed. Export and transfer the full directory tree, preserve relative paths, and check the destination for the referenced CSS, JavaScript, and image files.
The file exists in S3 but does not open as a web page
Storage is not the same as replay or publishing. A WARC is an archive container, not an ordinary static page. For publication, upload the HTML and associated assets as static files; for WARC, use a compatible archive workflow.
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S3 static-website endpoints do not provide HTTPS. AWS recommends Amplify Hosting with CloudFront for secure HTTPS delivery.
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The FTP transfer completes but the archive is damaged
Check that the client transferred the file in binary mode and retained its exact filename. Compare its size and, when available, checksum with the local copy. Re-transfer the affected file if the values differ.
A crawl seems incomplete after download
One crawl may produce multiple WARC files. Use the source inventory and download locations to identify all parts, and verify each one before treating the archive as complete.
The destination contains duplicates or confusing filenames
Use a consistent directory or object-key scheme that records the capture or crawl identity and keeps related metadata near its files. Before re-running an upload, inspect the destination to distinguish intentional replacement from an additional copy.
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If what you need is a clean screenshot rather than a full crawl archive, ScreenshotNeo can return an image or PDF from one GET request. It does not directly upload to S3 or FTP: save its response as a file, then transfer that file using the destination workflow above. The API supports PNG, JPEG, WebP, or PDF output. See the ScreenshotNeo API documentation for options.
curl -G "https://api.screenshotneo.com/v1/shot" -d access_key=YOUR_API_KEY --data-urlencode url=https://stripe.com -o shot.webpimport requests
r = requests.get("https://api.screenshotneo.com/v1/shot", params={"access_key": "YOUR_API_KEY", "url": "https://stripe.com"}, timeout=90)
open("shot.webp", "wb").write(r.content)const q = new URLSearchParams({ access_key: 'YOUR_API_KEY', url: 'https://stripe.com' });
const res = await fetch(`https://api.screenshotneo.com/v1/shot?${q}`);ScreenshotNeo accepts cookie/consent banners before capture and removes more than 60 known consent platforms, newsletter popups, and chat widgets; each step can be turned off. Bot checks/CAPTCHAs, blank pages, timeouts, failed loads, and cache hits cost nothing, and response headers identify the page verdict and billing status. Its MCP server offers screenshot and PDF tools for AI agents. The free plan includes 1,000 shots per month with no card; paid plans start at $5 for 3,000 shots. Create a free ScreenshotNeo account.
Frequently Asked Questions
Is a screenshot the same thing as a WARC archive?
No. A screenshot is an image of a rendered page; a WARC is a web-archive container that can preserve returned web data and crawl metadata.
Can an S3 bucket store a WARC file?
Yes. S3 can store exported files, including WARC objects; storage alone does not provide a WARC reader or replay interface.
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No. FTP transfers files to a server. Serving those files as a site requires the destination to be configured for web hosting and the site assets to remain correctly arranged.
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