Index Inject alternative: the bill for one month, and what the check costs
Index Inject's hero shows a dashboard reading "Credits 965/10000". We took that counter as the starting point, built one hypothetical month around it, and added up both sides: pushing links in, and checking what the crawl sees.
We looked up indexinject.com in our own index. It has a Domain Rating of 21 (our metric, not Ahrefs DR or Moz DA), 31 referring domains and 84 backlinks, first seen 2024-07-14 and last seen 2026-09-09. Only 32 of the 84 links (38.1%) are dofollow. The two biggest referrers, gsa-online.de (10 links) and links-stream.pro (8 links), are both nofollow, and topvisor.com at DR 37 is the highest-DR referrer.
The anchors are nearly all brand: "Index Inject" 32 times, "indexinject.com" 16, "https://indexinject.com" 12, "IndexInject" 11. There is no keyword anchor such as "backlink indexer" and no referrer at DR 50 or above. Our index is a sample of the public web, so these counts are a floor. They are still a useful reference for this page: they show what a link report looks like when the numbers come from a crawl sample.
Index Inject at a glance
- What it is
- A web-based "Link Crawling & Backlink Indexer" for submitting link URLs in projects.
- Plans
- Starter $9.99/month (10,000 links), Pro $19.99/month (25,000), Elite $37.99/month (50,000), plus custom packages on request.
- API
- Included in every plan. Documented operations: check credits, and add links (pipe-separated
urls,project,dripof 0 to 30 days). - Processing time
- Once a link shows "Processed", the site says it takes 10 to 14 days to go through the whole indexing system.
- Guarantee
- None. The site says "We make no indexing guarantees".
- Registration
- A homepage modal says it is at full capacity and will reopen when space frees up. Not verified further.
- Company details
- Owner, legal entity, HQ and founding year are not published on the pages we read.
Opening balance: 965 of 10,000 credits
The Index Inject hero is a screenshot of its own dashboard. Membership: Starter Package. Credits: 965/10000. A chart called Submissions runs from 27 December to 25 January and spikes near 600 in one day. It is a useful picture to start from: a batch goes in, the counter drops, and the user waits.
A bill autopsy needs a month to dissect, so we build one. It is hypothetical, not a real customer: a small link-building shop that places about 12,000 backlinks a month across 60 client sites and wants them crawled. The shop has two jobs. One is getting the URLs in front of crawlers, which is what Index Inject sells. The other is learning afterwards whether the links exist in anyone's crawl data, which is what we sell.
Every price below comes from the Index Inject pricing section or from our own price list. Where Index Inject publishes nothing, we write "not published" instead of guessing.
Line 1: the plan you must buy to submit 12,000 links
Index Inject sells three monthly plans, all with web interface and API access:
| Plan | Price | Links per month | Per 1,000 if fully used |
|---|---|---|---|
| Starter | $9.99 | 10,000 | about $1.00 |
| Pro | $19.99 | 25,000 | about $0.80 |
| Elite | $37.99 | 50,000 | about $0.76 |
Our shop needs 12,000, which is 2,000 above Starter. So the line reads Pro, $19.99. The per-1,000 column flatters the plans, because it assumes every credit is used. At 12,000 links on Pro the real figure is $19.99 / 12 = $1.67 per 1,000, more than the Starter rate. That is not a trick. It is the normal cost of buying a bucket larger than your month.
Whether unused credits roll over is not published. We assume they do not, which is the pessimistic reading and the one a careful buyer would budget for until support says otherwise.
Line 2: resubmits, the line nobody budgets
The site is candid about the odds: "Unfortunately no" to the question of whether all links get indexed, and "We make no indexing guarantees". That sentence turns a one-off line into a recurring one. If a share of the 12,000 does not stick, the shop either lets them go or submits them again, and a resubmission spends a credit like any other.
The share is unknown, because Index Inject publishes no success rate. So here is the arithmetic with a placeholder, clearly labelled as ours. If 30% of 12,000 are resubmitted next month, that is 3,600 extra credits. Month two then needs 15,600 credits, which still fits inside Pro's 25,000, so the bill stays at $19.99. Past 25,000 the next step is Elite at $37.99, an $18 jump.
The point is not that resubmitting is wasteful. The point is that headroom in a plan is where retries live, and you can only size that headroom if you measure the outcome.
Line 3: the 10-to-14-day clock
Index Inject says that once a link reads "Processed", it takes 10 to 14 days to go through the whole indexing system. The API can add a drip of 0 to 30 days, and the default when you leave it empty is 7. If the 10 to 14 days start only after the drip ends (the documentation does not say), a link submitted on the 1st with the default drip would finish its journey somewhere between the 17th and the 21st.
That is a cost in time rather than dollars, and it matters for reporting. On that assumption, a shop that sends monthly reports on the 30th cannot judge links submitted after about the 9th to 13th. For simplicity we use a cut at mid-month. Our month therefore has two cohorts: links submitted in the first half, which are ready to judge, and links in the second half, which are not. We will judge only the first cohort, roughly 6,000 links.
Line 4: checking the result with apibacklinks
Index Inject's documentation lists two operations: check credits and add links. It does not document an endpoint for per-link indexing status. Whether the dashboard shows one is not published. So we price a separate check from the crawl side.
Our index (API docs) is built from our own web link data, refreshed roughly monthly, so a new link can take weeks to appear. It tells you whether a link shows up in that crawl sample. It does not tell you whether Google indexed the page, and absence is not proof of failure. It is a second opinion, not a verdict.
Billing for the first cohort of 6,000 links across 60 target sites, at $0.0001 per credit:
- 60
backlinkslist calls, each 2 credits, up to 1,000 rows per call: 120 credits. - Pagination for the larger targets, say 90 more list calls: 180 credits.
- 500
domainlookups on the donor domains, 1 credit each: 500 credits.
Total 800 credits, or $0.08. Free actions such as overview cost nothing, and the first sign-in with Google brings $100 of free credit, which is 1,000,000 credits. The whole check consumes less than 0.1% of that starter balance.
The statement: both sides added up
| Line | Index Inject | apibacklinks |
|---|---|---|
| Plan for 12,000 links | $19.99 (Pro) | none, pay per call |
| Resubmits (placeholder 30%) | 3,600 credits, inside the same plan | not applicable, we do not submit |
| Check on 6,000 links | not published | about $0.08 |
| Month total | $19.99 | about $0.08 |
These are not rivals on one invoice. Add the lines and the shop spends about $20.07, of which 99.6% is the submission plan. The check is a rounding error on the bill but it is the only line that tells you whether the first line did anything.
If you want a wider view of other tools that do the submitting, the backlink indexer hub lists them, and the Addnewurl page covers a different indexing service.
Where Index Inject is the better choice
If your problem is that links are not being crawled, we cannot help. We do not index pages, and we never touch a URL you give us. Index Inject exists to do that, and for the price it asks, the offer is plain.
- It does the job we do not do. Submit, schedule, drip over up to 30 days, repeat. We provide data about links that exist.
- Low entry price. $9.99 buys 10,000 submissions.
- No extra kit. The FAQ says you need no proxies, captcha solvers or VPS.
- The API is in every plan and is simple: one key, one project name, pipe-separated URLs.
- It tells you its limits. The disclaimer says the instant indexing methods stopped working for any tool and that rates will not match the old ones.
Stay with Index Inject if you submit thousands of links each month and only need them pushed. If you want an indexing service from the same network as us, IndexJump does that job too, but it is a separate product and not a drop-in clone.
One caution: the homepage modal says registration is closed because of capacity. Check that you can actually sign up before you plan around it.
What the check says about Index Inject itself
We ran the same method on the vendor. Its 84 backlinks come from 31 referring domains, and 49 of them point at https://indexinject.com/ with another 21 at the bare domain. Eleven distinct anchors cover everything. One of them is "Nuclear Link Indexer", the name of another product pointing at Index Inject.
Most referrers are SEO-tool pages and roundups: gsa-online.de, links-stream.pro, seotoolz.ru, site-analyzer.pro, ninjaseo.es. The languages are German, Russian, Spanish, Portuguese and Turkish. That is what you would expect of a product mentioned in "how to index backlinks" lists. You can open the full report in the free explorer.
The lesson for the bill is modest. A sample of 84 links tells you little about a service's quality. It does show what a link report looks like when you can see it: names, dates, follow status. That is the report you would want for your own 12,000.
Reconciling the account
Read the bill the way an accountant would. The biggest line is the plan, and the plan size should come from your own volume, not from the tier names. The second line is retries, and you cannot size it without a measurement. The third is time: 10 to 14 days of processing plus drip means month-end reports lag behind submission.
A practical routine: submit through Index Inject, wait out the processing window, then pull the backlinks list for each target and compare it with what you submitted. Anything missing after a crawl refresh goes into the next batch. Thirty minutes of scripting does it, and the call cost is cents.
What we cannot give you: a success rate for Index Inject (nobody has published one), a statement about Google's index, or a promise that any link will rank. We can say what our crawl data holds, and from what date.
apibacklinks vs Index Inject
| apibacklinks | Index Inject | |
|---|---|---|
| Job | Link data: backlinks, referring domains, anchors, DR | Submits link URLs for crawling and indexing |
| Pricing model | Pay per call, from $0.10 per 1,000 lookups | Monthly plans: $9.99, $19.99, $37.99 |
| Volume | Up to 1,000 rows per call | 10,000, 25,000 or 50,000 links per month, or a custom package |
| Free start | $100 free credit on first Google sign-in, no card | No free tier or trial mentioned |
| API | 19 actions on one endpoint, JSON, CORS enabled | Included in every plan; documented: check credits, add links |
| Per-link status endpoint | Not applicable: we do not track submissions | Not published in the API documentation |
| Success rate | Not applicable | Not published; "no indexing guarantees" |
| Freshness | Roughly monthly index refresh, not real-time | Processed links take 10 to 14 days to go through the system |
| Company details | Independent service; no team or funding claims | Owner, entity and HQ not published |
Try it on indexinject.com
Pull the first page of backlinks for the vendor's own domain, to see how a link report looks.
curl "https://apibacklinks.com/api.php?action=backlinks&q=indexinject.com&per=100&key=YOUR_KEY"
Index Inject alternative — FAQ
Is apibacklinks an Index Inject replacement?
How much does Index Inject cost?
Does Index Inject guarantee indexing?
Can I sign up right now?
How would I check whether submitted links show up?
backlinks action with the target domain and compare the source URLs with your submission list. Our index refreshes roughly monthly from our own web data, so a missing link may simply not have been crawled yet.Is our DR the same as the score other tools show?
Backlink data for the price of a rounding error
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