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	49	32 %	76 %
2	Number of Do Follow Backlinks Authority	-0.27	133206	2200	28 %	75 %
3	Number of Backlinks Authority	-0.27	134088	2283	32 %	77 %
4	Number of Unique LSI Words Used Diversity	-0.27	908	286	73 %	73 %
5	Load Time Milliseconds Performance	-0.25	21244	2173	73 %	87 %
6	Number of No Follow Backlinks Authority	-0.25	5365	150	22 %	77 %
7	Search Result Domain is .com, .net, or .org Other	-0.25	1	1	7 %	80 %
8	Search Result Domain is .com Other	-0.25	1	1	6 %	80 %
9	Number of Images Size	-0.24	81	27	60 %	88 %
10	Number of Images with ALT Text Size	-0.23	67	19	56 %	89 %
11	Number of P Tags Size	-0.23	123	40	59 %	87 %
12	Unabridged Word Count Size	-0.23	12848	1903	74 %	90 %
13	Word Count Size	-0.23	10144	1550	74 %	90 %
14	Number of Top 200 Shared Factors Used Diversity	-0.23	51	36	86 %	85 %
15	Number of Top 100 Shared Factors Used Diversity	-0.22	38	27	86 %	84 %
16	Number of Heading Tags Size	-0.22	49	21	61 %	89 %
17	Clean Text Kilobytes Size	-0.22	82	13	60 %	91 %
18	Number of H1 Tags Size	-0.22	4	1	57 %	83 %
19	Number of Top 50 Shared Factors Used Diversity	-0.22	16	11	86 %	80 %
20	Has Meta Charset Technology	-0.22	1	1	61 %	85 %
21	Number of H2 Tags Size	-0.22	14	7	56 %	85 %
22	Has JSON-LD Schema Markup Relevancy	-0.22	1	1	43 %	76 %
23	Number of HTML Tags Size	-0.22	2216	927	73 %	86 %
24	Number of DoFollow Links Authority	-0.21	333	108	68 %	86 %
25	Variations in H1, H2, and H3 Tags Relevancy	-0.21	211	9	51 %	83 %
26	Search Result Number of Dirs in Path Other	-0.21	4	2	65 %	77 %
27	Number of Links Authority	-0.21	336	110	68 %	86 %
28	Number of HTTPS Links Authority	-0.21	335	110	67 %	86 %
29	Variations in H1-H6 Tags Relevancy	-0.21	267	11	52 %	85 %
30	Number of Includes Technology	-0.21	54	23	66 %	78 %
31	Number of Factors Used Diversity	-0.21	396	179	87 %	78 %
32	Number of Internal Links Authority	-0.21	312	97	66 %	83 %
33	Average Words Per Sentence Size	-0.21	242	25	63 %	79 %
34	Variations in P Tags Relevancy	-0.21	3443	62	52 %	87 %
35	Number of Facebook Pages Authority	-0.2	10	2	44 %	86 %
36	Number of Unique Variations Used Diversity	-0.2	48	13	68 %	73 %
37	Variations in H1 and H2 Tags Relevancy	-0.2	76	5	49 %	81 %
38	Number of HTML Comments Size	-0.2	492	63	56 %	84 %
39	Variations in LI Tags Relevancy	-0.2	1981	39	51 %	85 %
40	Variations in Div Tags Relevancy	-0.2	31244	350	61 %	86 %
41	Variations in A Tags Relevancy	-0.2	4844	58	52 %	80 %
42	Number of External Links Authority	-0.2	38	13	63 %	89 %
43	Number of H3 Tags Size	-0.2	33	9	48 %	89 %
44	Number of Images without ALT Text Size	-0.19	29	8	43 %	86 %
45	Number of Distinct Entities Used Diversity	-0.19	60	24	61 %	91 %
46	Entities in Sentences Relevancy	-0.19	1891	156	53 %	92 %
47	Variations in Search Result Document File Name Relevancy	-0.19	7	1	38 %	85 %
48	Search Result Host Length Size	-0.19	22	16	72 %	74 %
49	Number of CSS Includes Technology	-0.19	21	8	60 %	67 %
50	Entities in the HTML Tag Relevancy	-0.19	1892	161	57 %	92 %
51	Search Result Domain Length Size	-0.19	22	16	72 %	74 %
52	Number of DoFollow External Links Authority	-0.19	36	12	61 %	90 %
53	Variations in H2 Tags Relevancy	-0.19	71	4	42 %	79 %
54	Has Form Technology	-0.19	1	1	36 %	71 %
55	LSI Words in Sentences Relevancy	-0.19	3764	647	51 %	93 %
56	Variations in H1 Tags Relevancy	-0.19	11	1	43 %	79 %
57	Number of Instagram Pages Authority	-0.19	13	2	34 %	83 %
58	Variations in ALT Attributes Relevancy	-0.19	151	7	37 %	81 %
59	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.19	5	2	36 %	80 %
60	Variation Count in Top 30KB Relevancy	-0.19	6580	81	55 %	76 %
61	Number of LinkedIn Pages Authority	-0.19	4	1	25 %	80 %
62	Flesch Kincaid Reading Grade Level Other	-0.19	6	1	83 %	87 %
63	Variations in Body Tags Relevancy	-0.18	97091	809	68 %	82 %
64	Search Result Uses HTTPS Other	-0.18	1	1	70 %	71 %
65	Number of Forms Technology	-0.18	6	2	37 %	77 %
66	Uses JSON-LD name Other	-0.18	1	1	45 %	72 %
67	Entities in H2 Tags	-0.18	28	7	41 %	93 %
68	Variations in HTML Tags Relevancy	-0.18	97091	792	67 %	84 %
69	Leading Variations in H1-H6 Tags Relevancy	-0.18	6	2	39 %	83 %
70	Variations in Span Tags Relevancy	-0.18	729	17	41 %	84 %
71	Percentage of DoFollow External Links Authority	-0.18	38	13	61 %	77 %
72	Number of Social Pages Authority	-0.18	15	5	50 %	84 %
73	Variations in Sentences Relevancy	-0.18	3407	80	61 %	83 %
74	Number of Questions In Headings Size	-0.18	9	3	33 %	84 %
75	Variations in Search Result URL Path Relevancy	-0.18	7	1	40 %	83 %
76	Term Frequency Relevancy	-0.18	6	3	66 %	76 %
77	Page Size Kilobytes Size	-0.18	788	292	72 %	58 %
78	Variations in A Tag HREF Attributes Relevancy	-0.18	2213	59	47 %	83 %
79	Variations in H3 Tags Relevancy	-0.17	135	4	35 %	83 %
80	Number Of JSON-LD Types Relevancy	-0.17	67	17	47 %	82 %
81	Number of Facebook Accounts Authority	-0.17	3	1	19 %	79 %
82	Number of Social Accounts Authority	-0.17	5	2	30 %	83 %
83	Percentage of DoFollow Links Authority	-0.17	99	78	67 %	74 %
84	Number of Sentences Size	-0.17	541	141	71 %	85 %
85	Variations in Distinct A Tag HREF Attributes Relevancy	-0.17	1343	37	48 %	83 %
86	Headings Has Question Other	-0.17	1	1	33 %	79 %
87	Percentage of DoFollow Internal Links Authority	-0.17	91	65	65 %	68 %
88	Entities in H1 Tags	-0.17	5	2	42 %	89 %
89	Has Meta Viewport Technology	-0.17	1	1	69 %	71 %
90	Entities in H3 Tags	-0.17	39	7	35 %	93 %
91	Variations in Main Tags Relevancy	-0.17	15167	180	31 %	84 %
92	Search Result Summary Length Size	-0.17	216	149	85 %	67 %
93	Uses JSON-LD url Other	-0.17	1	1	41 %	72 %
94	Has Meta Robots Other	-0.17	1	1	23 %	75 %
95	Variations in Search Result URL Relevancy	-0.17	13	2	49 %	77 %
96	Inline CSS Kilobytes Size	-0.17	154	55	56 %	83 %
97	Number of Questions In H3 Tags Size	-0.17	5	2	18 %	79 %
98	LSI Words in H2 Tags Relevancy	-0.16	69	18	42 %	87 %
99	Has Entities in H2 Tags Relevancy	-0.16	1	1	42 %	88 %
100	Number of Absolute URLs Authority	-0.16	546	229	71 %	69 %
101	Inline JavaScript Kilobytes Size	-0.16	557	117	67 %	52 %
102	Variations in Nav Tags Relevancy	-0.16	9938	87	39 %	80 %
103	Is Home Page Other	-0.16	1	1	13 %	56 %
104	Title Length Size	-0.16	129	51	70 %	56 %
105	Variations in Absolute URLs Relevancy	-0.16	6009	110	51 %	82 %
106	Has Contact Page Trust	-0.16	1	1	48 %	60 %
107	Variations in Meta Description Relevancy	-0.16	44	2	50 %	69 %
108	Has Privacy Policy Trust	-0.16	1	1	44 %	64 %
109	Number of JavaScript Includes Technology	-0.16	40	16	68 %	80 %
110	Entities in Title Tag Relevancy	-0.16	10	3	53 %	92 %
111	Has Apple Touch Icon Technology	-0.16	1	1	42 %	75 %
112	Variation Density in Top 30KB Relevancy	-0.16	298	6	55 %	66 %
113	Variations in First 100 Words Relevancy	-0.16	187	9	54 %	76 %
114	Variations in Search Result Link Text Relevancy	-0.16	10	2	74 %	71 %
115	Variations in the Title Tag Relevancy	-0.16	10	2	53 %	68 %
116	Has Entities in H1 Tags Relevancy	-0.16	1	1	42 %	87 %
117	Is Article Page Other	-0.16	1	1	35 %	66 %
118	Title Word Count Size	-0.16	17	8	71 %	61 %
119	Has US Phone Number Trust	-0.16	1	1	28 %	72 %
120	Variations in OpenGraph Title Relevancy	-0.16	7	2	47 %	59 %
121	Variations in Section Tags Relevancy	-0.16	1231	34	33 %	85 %
122	Variations in Search Result Display URL Relevancy	-0.16	10	2	74 %	71 %
123	Variations in Footer Tags Relevancy	-0.16	4986	46	34 %	76 %
124	Exact Matches in the HTML Tag Relevancy	-0.16	324	11	28 %	81 %
125	Uses JSON-LD description Other	-0.15	1	1	36 %	68 %
126	Leading Variations in H2 Tags Relevancy	-0.15	3	1	22 %	77 %
127	Leading Variations in H1 Tags Relevancy	-0.15	1	1	22 %	77 %
128	Number Of Claimed Brands Other	-0.15	38	3	21 %	74 %
129	Variations in the Canonical URL Relevancy	-0.15	39	2	42 %	75 %
130	LSI Words in H3 Tags Relevancy	-0.15	72	19	37 %	91 %
131	Number of US Phone Numbers Trust	-0.15	108	8	30 %	82 %
132	Variations in OpenGraph Description Relevancy	-0.15	24	2	45 %	63 %
133	Number of Twitter Accounts Authority	-0.15	2	1	13 %	81 %
134	Uses Schema organization Other	-0.15	1	1	28 %	66 %
135	Clean Keyword Density in the HTML Tag Relevancy	-0.15	204	7	57 %	63 %
136	Has Schema Markup Relevancy	-0.15	1	1	54 %	55 %
137	Leading Variations in Title Tag Relevancy	-0.15	1	1	26 %	75 %
138	Exact Matches in H1-H6 Tags Relevancy	-0.15	8	1	17 %	80 %
139	Has Terms of Service Trust	-0.15	1	1	31 %	57 %
140	LSI Words in H1 Tags Relevancy	-0.15	11	4	42 %	87 %
141	Number of H4 Tags Size	-0.15	12	3	26 %	82 %
142	Variations in Strong Tags Relevancy	-0.15	40	3	24 %	80 %
143	Number of Prices Size	-0.15	484	115	59 %	78 %
144	Number of Questions Size	-0.15	55	14	59 %	73 %
145	Number of Email Addresses Trust	-0.15	19	4	37 %	74 %
146	Has Entities in H3 Tags Relevancy	-0.15	1	1	35 %	87 %
147	Uses Schema name Other	-0.15	1	1	52 %	52 %
148	Number of Nofollow Links Authority	-0.15	20	3	17 %	82 %
149	Uses JSON-LD Organization Other	-0.15	1	1	27 %	67 %
150	Exact Matches in Top 30KB Relevancy	-0.15	8	2	17 %	76 %
151	Variations in Script Tags Relevancy	-0.15	29554	250	57 %	74 %
152	Number of Questions In H2 Tags Size	-0.15	4	1	21 %	82 %
153	Uses Schema datemodified Other	-0.14	1	1	26 %	67 %
154	Number of NoFollow External Links Authority	-0.14	7	2	13 %	82 %
155	Has FavIcon Technology	-0.14	1	1	65 %	60 %
156	Uses JSON-LD datePublished Other	-0.14	1	1	26 %	72 %
157	Has OpenGraph Type Relevancy	-0.14	1	1	53 %	55 %
158	Has OpenGraph Image Relevancy	-0.14	1	1	46 %	53 %
159	Word Count in Meta Description Size	-0.14	54	19	60 %	62 %
160	Uses Schema url Other	-0.14	1	1	49 %	51 %
161	Uses JSON-LD ImageObject Other	-0.14	1	1	26 %	65 %
162	Uses JSON-LD dateModified Other	-0.14	1	1	25 %	68 %
163	Is Store Page Other	-0.14	1	1	33 %	70 %
164	Is OpenGraph Type Article Technology	-0.14	1	1	24 %	58 %
165	Uses JSON-LD ListItem Other	-0.14	1	1	30 %	65 %
166	Has Canonical URL Authority	-0.14	1	1	61 %	60 %
167	Uses JSON-LD BreadcrumbList Other	-0.14	1	1	30 %	64 %
168	Variations Making Whole Span Tags Relevancy	-0.14	6	1	18 %	76 %
169	TF/IDF Relevancy	-0.14	1	1	51 %	74 %
170	Meta Description Length Size	-0.14	394	115	60 %	61 %
171	Entities in Meta Description Tag Relevancy	-0.14	17	3	47 %	87 %
172	Has Meta Description Relevancy	-0.14	1	1	57 %	56 %
173	Number of Meta Generator Tags Technology	-0.14	2	1	27 %	67 %
174	Percentage of NoFollow Links Authority	-0.14	7	2	15 %	79 %
175	Uses Schema webpage Other	-0.14	1	1	28 %	68 %
176	Exact Matches in Title Tag Relevancy	-0.14	1	1	14 %	77 %
177	Uses JSON-LD WebPage Other	-0.14	1	1	27 %	66 %
178	Variations in Article Tags Relevancy	-0.14	356	21	20 %	77 %
179	Variations in I Tags Relevancy	-0.14	138	4	16 %	81 %
180	Search Result URL Length Size	-0.13	110	66	86 %	43 %
181	Has Email Trust	-0.13	1	1	36 %	67 %
182	Search Result Has Unmodified Page Title Other	-0.13	1	1	36 %	55 %
183	Variations Making Whole LI Tags Relevancy	-0.13	7	1	22 %	77 %
184	LSI Words in Title Tag Relevancy	-0.13	12	5	51 %	81 %
185	Percentage of NoFollow External Links Authority	-0.13	4	1	11 %	80 %
186	Has RSS Link Authority	-0.13	1	1	22 %	59 %
187	Uses Schema searchaction Other	-0.13	1	1	18 %	63 %
188	Uses JSON-LD SearchAction Other	-0.13	1	1	18 %	64 %
189	Uses Schema telephone Other	-0.13	1	1	20 %	61 %
190	Has Google Verify Technology	-0.13	1	1	15 %	72 %
191	Uses Microdata AggregateRating Other	-0.13	1	1	2 %	15 %
192	Uses Microdata ratingCount Other	-0.13	1	1	2 %	11 %
193	Variations making whole A Tags Relevancy	-0.13	22	2	25 %	78 %
194	Exact Matches in Sentences Relevancy	-0.13	209	4	20 %	79 %
195	Leading Variations in H3 Tags Relevancy	-0.13	6	1	17 %	82 %
196	Entities in H4 Tags	-0.13	10	2	14 %	89 %
197	Variations in H4-H6 Tags Relevancy	-0.13	57	2	15 %	82 %
198	Uses Schema image Other	-0.13	1	1	17 %	71 %
199	Has HREF Lang Technology	-0.13	1	1	9 %	74 %
200	Variations in Search Result Summary Relevancy	-0.13	43	3	74 %	69 %

Measures 154504 SEO Factors

152782 Built-In SEO Factors

143555 On-page SEO Factors

9227 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