200 Top SEO Ranking Factors September 2026

TOP SEO Factors for 2026-09 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Referring Domains Authority	-0.28	627	53	32 %	92 %
2	Number of Backlinks Authority	-0.28	134088	2537	32 %	92 %
3	Number of Unique LSI Words Used Diversity	-0.28	908	274	70 %	75 %
4	Number of Do Follow Backlinks Authority	-0.28	133206	2436	29 %	90 %
5	Search Result Domain is .com, .net, or .org Other	-0.27	1	1	7 %	80 %
6	Load Time Milliseconds Performance	-0.27	20510	2354	68 %	87 %
7	Search Result Domain is .com Other	-0.27	1	1	6 %	80 %
8	Number of Images Size	-0.26	81	26	57 %	88 %
9	Number of No Follow Backlinks Authority	-0.26	5365	158	23 %	92 %
10	Number of P Tags Size	-0.24	123	39	56 %	88 %
11	Word Count Size	-0.24	8520	1428	70 %	92 %
12	Unabridged Word Count Size	-0.24	10269	1749	70 %	92 %
13	Number of Images with ALT Text Size	-0.24	67	18	53 %	91 %
14	Number of Heading Tags Size	-0.24	49	20	58 %	89 %
15	Has Meta Charset Technology	-0.24	1	1	57 %	86 %
16	Number of Top 200 Shared Factors Used Diversity	-0.24	51	35	82 %	86 %
17	Number of H1 Tags Size	-0.24	4	1	53 %	85 %
18	Clean Text Kilobytes Size	-0.24	61	12	57 %	93 %
19	Number of Top 100 Shared Factors Used Diversity	-0.24	38	26	82 %	86 %
20	Number of Top 50 Shared Factors Used Diversity	-0.24	16	11	81 %	82 %
21	Number of HTML Tags Size	-0.24	2216	911	69 %	88 %
22	Number of H2 Tags Size	-0.23	14	7	53 %	87 %
23	Search Result Number of Dirs in Path Other	-0.23	3	2	60 %	76 %
24	Average Words Per Sentence Size	-0.23	242	26	59 %	80 %
25	Number of Links Authority	-0.22	336	110	64 %	89 %
26	Number of DoFollow Links Authority	-0.22	333	107	64 %	90 %
27	Number of Factors Used Diversity	-0.22	396	173	83 %	78 %
28	Number of HTTPS Links Authority	-0.22	335	109	64 %	90 %
29	Number of Internal Links Authority	-0.22	312	95	63 %	85 %
30	Number of HTML Comments Size	-0.22	477	59	53 %	85 %
31	Variations in H1, H2, and H3 Tags Relevancy	-0.22	211	9	46 %	81 %
32	Has JSON-LD Schema Markup Relevancy	-0.22	1	1	40 %	78 %
33	Variations in H1-H6 Tags Relevancy	-0.22	267	11	47 %	83 %
34	Variations in P Tags Relevancy	-0.21	3443	65	48 %	88 %
35	Number of Unique Variations Used Diversity	-0.21	48	11	63 %	73 %
36	Search Result Host Length Size	-0.21	22	16	67 %	76 %
37	Number of Images without ALT Text Size	-0.21	29	8	40 %	88 %
38	Variations in H1 and H2 Tags Relevancy	-0.21	76	5	45 %	80 %
39	Search Result Domain Length Size	-0.21	22	16	67 %	76 %
40	Variations in Div Tags Relevancy	-0.21	31244	413	55 %	88 %
41	Number of Facebook Pages Authority	-0.21	5	2	42 %	85 %
42	Number of Includes Technology	-0.21	54	23	62 %	80 %
43	Search Result Uses HTTPS Other	-0.21	1	1	65 %	72 %
44	Number of External Links Authority	-0.21	38	14	60 %	91 %
45	LSI Words in Sentences Relevancy	-0.2	3764	634	50 %	93 %
46	Variations in LI Tags Relevancy	-0.2	1981	39	47 %	86 %
47	Number of H3 Tags Size	-0.2	33	9	45 %	89 %
48	Variations in A Tags Relevancy	-0.2	4844	67	48 %	81 %
49	Number of DoFollow External Links Authority	-0.2	36	13	59 %	91 %
50	Entities in Sentences Relevancy	-0.2	600	129	50 %	95 %
51	Has Form Technology	-0.2	1	1	34 %	76 %
52	Number of Distinct Entities Used Diversity	-0.2	60	22	57 %	93 %
53	Flesch Kincaid Reading Grade Level Other	-0.2	6	1	79 %	90 %
54	Entities in the HTML Tag Relevancy	-0.2	687	133	54 %	94 %
55	Variations in Body Tags Relevancy	-0.2	97091	965	63 %	81 %
56	Percentage of DoFollow External Links Authority	-0.2	38	14	58 %	75 %
57	Variations in H1 Tags Relevancy	-0.2	11	1	40 %	79 %
58	Number of Forms Technology	-0.2	6	2	35 %	82 %
59	Variations in ALT Attributes Relevancy	-0.2	151	7	33 %	83 %
60	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.19	5	2	32 %	79 %
61	Variations in H2 Tags Relevancy	-0.19	71	4	38 %	80 %
62	Variation Count in Top 30KB Relevancy	-0.19	6580	98	50 %	79 %
63	Variations in Search Result Document File Name Relevancy	-0.19	7	1	35 %	84 %
64	Page Size Kilobytes Size	-0.19	788	287	68 %	60 %
65	Leading Variations in H1-H6 Tags Relevancy	-0.19	5	2	35 %	81 %
66	Variations in HTML Tags Relevancy	-0.19	97091	937	61 %	84 %
67	Term Frequency Relevancy	-0.19	6	3	60 %	77 %
68	Uses JSON-LD name Other	-0.19	1	1	42 %	75 %
69	Number of Social Pages Authority	-0.19	15	5	48 %	88 %
70	Variations in Span Tags Relevancy	-0.19	729	17	37 %	84 %
71	Number of CSS Includes Technology	-0.19	21	8	58 %	70 %
72	Entities in H2 Tags	-0.19	23	6	38 %	94 %
73	Number of Instagram Pages Authority	-0.19	13	2	33 %	86 %
74	Percentage of DoFollow Links Authority	-0.19	99	78	64 %	78 %
75	Variations in Sentences Relevancy	-0.18	3407	76	55 %	85 %
76	Search Result Summary Length Size	-0.18	216	149	80 %	66 %
77	Has Meta Viewport Technology	-0.18	1	1	65 %	76 %
78	Percentage of DoFollow Internal Links Authority	-0.18	87	63	61 %	72 %
79	Number of Sentences Size	-0.18	427	127	67 %	87 %
80	Number of LinkedIn Pages Authority	-0.18	4	1	22 %	81 %
81	Number Of JSON-LD Types Relevancy	-0.18	67	15	43 %	83 %
82	Has Meta Robots Other	-0.18	1	1	22 %	75 %
83	Number of Questions In Headings Size	-0.18	9	2	30 %	83 %
84	Inline JavaScript Kilobytes Size	-0.18	557	113	63 %	52 %
85	Number of Social Accounts Authority	-0.18	5	2	29 %	84 %
86	Number of Facebook Accounts Authority	-0.18	3	1	19 %	79 %
87	LSI Words in H2 Tags Relevancy	-0.18	68	17	41 %	88 %
88	Number of Absolute URLs Authority	-0.18	523	224	67 %	72 %
89	Variations in H3 Tags Relevancy	-0.18	135	4	31 %	80 %
90	Variations in Search Result URL Path Relevancy	-0.18	7	1	35 %	83 %
91	Title Length Size	-0.18	129	50	66 %	59 %
92	Entities in H1 Tags	-0.18	5	2	38 %	90 %
93	Variations in A Tag HREF Attributes Relevancy	-0.18	2213	57	42 %	82 %
94	Uses JSON-LD mainEntity Other	-0.17	1	1	1 %	12 %
95	Has Privacy Policy Trust	-0.17	1	1	40 %	68 %
96	Uses JSON-LD url Other	-0.17	1	1	38 %	74 %
97	Headings Has Question Other	-0.17	1	1	30 %	81 %
98	Variations in Meta Description Relevancy	-0.17	44	2	44 %	70 %
99	Variations in Distinct A Tag HREF Attributes Relevancy	-0.17	1343	36	42 %	84 %
100	Has Contact Page Trust	-0.17	1	1	43 %	63 %
101	Number of JavaScript Includes Technology	-0.17	40	16	64 %	83 %
102	Has Apple Touch Icon Technology	-0.17	1	1	39 %	76 %
103	Variations in Search Result Link Text Relevancy	-0.17	10	2	68 %	70 %
104	Is Home Page Other	-0.17	1	1	13 %	59 %
105	Entities in H3 Tags	-0.17	39	7	32 %	92 %
106	Has US Phone Number Trust	-0.17	1	1	25 %	75 %
107	Title Word Count Size	-0.17	17	8	67 %	63 %
108	Entities in Title Tag Relevancy	-0.17	7	3	49 %	94 %
109	Inline CSS Kilobytes Size	-0.17	154	54	54 %	84 %
110	Variations in Main Tags Relevancy	-0.17	15167	206	28 %	85 %
111	Has Entities in H2 Tags Relevancy	-0.17	1	1	38 %	90 %
112	Variations in OpenGraph Title Relevancy	-0.17	7	2	41 %	58 %
113	Variations in Search Result Display URL Relevancy	-0.17	10	2	68 %	71 %
114	Variations in the Title Tag Relevancy	-0.17	10	2	48 %	70 %
115	Has Entities in H1 Tags Relevancy	-0.17	1	1	39 %	87 %
116	Number of US Phone Numbers Trust	-0.17	108	8	27 %	83 %
117	Number of Questions In H3 Tags Size	-0.16	4	2	16 %	79 %
118	Leading Variations in H1 Tags Relevancy	-0.16	1	1	20 %	75 %
119	Variation Density in Top 30KB Relevancy	-0.16	298	7	48 %	66 %
120	LSI Words in H3 Tags Relevancy	-0.16	72	18	36 %	90 %
121	LSI Words in H1 Tags Relevancy	-0.16	9	4	41 %	88 %
122	Variations in Nav Tags Relevancy	-0.16	9938	103	35 %	80 %
123	Variations in Search Result URL Relevancy	-0.16	13	2	42 %	76 %
124	Number of Prices Size	-0.16	484	106	55 %	80 %
125	Variations in Absolute URLs Relevancy	-0.16	6009	122	45 %	82 %
126	Number of Nofollow Links Authority	-0.16	20	3	16 %	83 %
127	Is Article Page Other	-0.16	1	1	33 %	66 %
128	Variations in OpenGraph Description Relevancy	-0.16	24	2	40 %	64 %
129	Number of Questions Size	-0.16	38	12	54 %	72 %
130	Uses JSON-LD description Other	-0.16	1	1	34 %	68 %
131	Leading Variations in H2 Tags Relevancy	-0.16	3	1	19 %	77 %
132	Variations in Script Tags Relevancy	-0.16	29554	305	50 %	74 %
133	Clean Keyword Density in the HTML Tag Relevancy	-0.16	204	7	50 %	62 %
134	Number Of Claimed Brands Other	-0.16	38	3	19 %	76 %
135	Variations in Section Tags Relevancy	-0.16	1231	33	29 %	87 %
136	Uses JSON-LD Organization Other	-0.16	1	1	25 %	70 %
137	Uses Schema organization Other	-0.16	1	1	26 %	70 %
138	Number of H4 Tags Size	-0.16	12	3	25 %	83 %
139	Has Terms of Service Trust	-0.16	1	1	29 %	62 %
140	Exact Matches in the HTML Tag Relevancy	-0.16	324	10	24 %	79 %
141	Number of Email Addresses Trust	-0.16	19	4	35 %	73 %
142	Variations in First 100 Words Relevancy	-0.16	187	9	47 %	77 %
143	Variations in Footer Tags Relevancy	-0.15	4986	60	30 %	74 %
144	Number of Twitter Accounts Authority	-0.15	2	1	13 %	83 %
145	Has Schema Markup Relevancy	-0.15	1	1	51 %	58 %
146	Uses JSON-LD ListItem Other	-0.15	1	1	28 %	66 %
147	Leading Variations in Title Tag Relevancy	-0.15	1	1	25 %	75 %
148	Uses JSON-LD BreadcrumbList Other	-0.15	1	1	27 %	66 %
149	Uses Schema name Other	-0.15	1	1	48 %	56 %
150	Has Entities in H3 Tags Relevancy	-0.15	1	1	31 %	86 %
151	Number of NoFollow External Links Authority	-0.15	7	2	12 %	84 %
152	Exact Matches in Top 30KB Relevancy	-0.15	8	2	16 %	73 %
153	Has FavIcon Technology	-0.15	1	1	61 %	63 %
154	Word Count in Meta Description Size	-0.15	54	18	55 %	64 %
155	Uses Schema datemodified Other	-0.15	1	1	25 %	67 %
156	Has Email Trust	-0.15	1	1	34 %	67 %
157	Percentage of NoFollow Links Authority	-0.15	7	2	15 %	81 %
158	Variations in the Canonical URL Relevancy	-0.15	39	2	36 %	78 %
159	Number of Meta Generator Tags Technology	-0.15	2	1	27 %	65 %
160	Variations in Strong Tags Relevancy	-0.15	40	3	22 %	81 %
161	Exact Matches in H1-H6 Tags Relevancy	-0.15	8	1	16 %	78 %
162	Uses Schema url Other	-0.15	1	1	46 %	52 %
163	Search Result URL Length Size	-0.15	110	69	79 %	36 %
164	Uses JSON-LD datePublished Other	-0.15	1	1	26 %	73 %
165	Has OpenGraph Image Relevancy	-0.15	1	1	42 %	53 %
166	Meta Description Length Size	-0.15	394	112	56 %	62 %
167	Uses JSON-LD ImageObject Other	-0.15	1	1	25 %	68 %
168	Is OpenGraph Type Article Technology	-0.15	1	1	24 %	58 %
169	Number of Questions In H2 Tags Size	-0.15	4	1	19 %	82 %
170	LSI Words in Title Tag Relevancy	-0.14	11	5	50 %	80 %
171	Has OpenGraph Type Relevancy	-0.14	1	1	49 %	56 %
172	Has Canonical URL Authority	-0.14	1	1	57 %	63 %
173	Is Store Page Other	-0.14	1	1	31 %	72 %
174	Has HREF Lang Technology	-0.14	1	1	8 %	72 %
175	Uses JSON-LD dateModified Other	-0.14	1	1	25 %	68 %
176	Uses Schema webpage Other	-0.14	1	1	27 %	68 %
177	Uses Schema searchaction Other	-0.14	1	1	18 %	63 %
178	Uses JSON-LD SearchAction Other	-0.14	1	1	18 %	64 %
179	Uses JSON-LD WebPage Other	-0.14	1	1	26 %	66 %
180	Uses Schema image Other	-0.14	1	1	16 %	71 %
181	Has Meta Description Relevancy	-0.14	1	1	54 %	60 %
182	Entities in Meta Description Tag Relevancy	-0.14	17	3	43 %	87 %
183	Uses Schema urltemplate Other	-0.14	1	1	14 %	56 %
184	Variations in Article Tags Relevancy	-0.14	356	21	19 %	76 %
185	Variations in I Tags Relevancy	-0.14	138	4	14 %	81 %
186	Uses Schema entrypoint Other	-0.14	1	1	14 %	56 %
187	Uses JSON-LD urlTemplate Other	-0.14	1	1	14 %	57 %
188	TF/IDF Relevancy	-0.14	1	1	43 %	76 %
189	Uses JSON-LD EntryPoint Other	-0.14	1	1	14 %	57 %
190	Variations in Search Result Summary Relevancy	-0.14	43	3	67 %	67 %
191	Uses Schema website Other	-0.14	1	1	27 %	67 %
192	Variations Making Whole Span Tags Relevancy	-0.14	5	1	15 %	77 %
193	Percentage of NoFollow External Links Authority	-0.14	4	1	11 %	81 %
194	Number of HREF Lang Tags Size	-0.14	12	2	7 %	78 %
195	Uses Microdata Brand Other	-0.14	1	1	1 %	13 %
196	Is Category Page Other	-0.14	1	1	12 %	70 %
197	Uses Schema headline Other	-0.14	1	1	14 %	64 %
198	Number of H5 Tags Size	-0.14	10	2	11 %	80 %
199	Uses JSON-LD image Other	-0.14	1	1	13 %	73 %
200	Uses Schema propertyvaluespecification Other	-0.14	1	1	12 %	56 %

Measures 154460 SEO Factors

152738 Built-In SEO Factors

143512 On-page SEO Factors

9226 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-09 previous